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TZID:Europe/Berlin
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DTSTART:20190331T010000
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DTSTART:20191027T010000
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DTSTART:20200329T010000
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BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20190110T120000
DTEND;TZID=Europe/Berlin:20190110T130000
DTSTAMP:20260501T073457
CREATED:20181004T130902Z
LAST-MODIFIED:20181004T130902Z
UID:2459-1547121600-1547125200@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Klaus Helbing
DESCRIPTION:Probing Particle Physics with IceCube\nThe IceCube observatory located at the South Pole is a cubic-kilometre optical Cherenkov telescope primarily designed for the detection of high-energy astrophysical neutrinos. IceCube became fully operational in 2010 and reached a milestone in 2013 by the first observation of cosmic neutrinos in the TeV-PeV energy range. This observation does not only mark an important breakthrough in neutrino astronomy\, but it also provides a new probe of particle physics related to neutrino production\, mixing\, and interaction. An overview is given of the various possibilities how IceCube can address fundamental questions related to the phenomena of neutrino oscillations and interactions\, the origin of dark matter\, and the existence of exotic relic particles\, like monopoles. Recent results are summarized and future avenues are highlighted.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-klaus-helbing/
LOCATION:ECAP\, room 307\, Erwin-Rommel-Str 1\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20190110T191500
DTEND;TZID=Europe/Berlin:20190110T204500
DTSTAMP:20260501T073457
CREATED:20181026T180419Z
LAST-MODIFIED:20181026T180419Z
UID:2545-1547147700-1547153100@ecap.nat.fau.de
SUMMARY:Digitizing the Sky: Prof. Dr. U. Heber
DESCRIPTION:Prof. Heber will present the FAU contributions to the APPLAUSE digitization project of astronomical photo negative at the Collegium Alexandrinum. \nMore on the project in our News Item and at the Collegium’s page. \n 
URL:https://ecap.nat.fau.de/index.php/event/digitizing-the-sky-prof-dr-u-heber/
LOCATION:Zentrum für Medizinische Physik und Technik (ZMPT)\, Hörsaal: 01.020\, Henkestraße 91\, 91052 Erlangen\, Henkestraße 91\, Erlangen\, 91058\, Germany
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20190131T120000
DTEND;TZID=Europe/Berlin:20190131T130000
DTSTAMP:20260501T073457
CREATED:20181004T132049Z
LAST-MODIFIED:20181004T132049Z
UID:2464-1548936000-1548939600@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Joachim Puls
DESCRIPTION:On the difficulties to derive reliable CNO abundances in hot massive stars\nThough low in number\, massive stars play an essential role in the early and present Universe\, due to their enormous energy output and production of metals. Moreover\, the end-products of massive star evolution are among the most spectacular events/objects in our Cosmos: Supernovae\, (long-duration) Gamma-Ray Bursters and Black Holes. Unfortunately\, the evolution of massive stars is not as well understood as required for reliably predicting the different evolutionary channels\, and problems already exist during the Main Sequence\, related to mass loss and rotation. To constrain present evolutionary predictions\, the observational analysis of CNO surface abundances is a prime tool\, giving insight into rotationally-induced mixing processes and angular momentum transport. Such analyses\, however\, are hampered by many difficulties\, increasing the measurement uncertainties significantly\, compared to the low-mass case. In this talk\, I will outline these difficulties\, also with focus on problems arising from physically complex line transitions\, and discuss the results and implications from more recent abundance studies of hot massive stars.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-joachim-puls/
LOCATION:ECAP\, room 307\, Erwin-Rommel-Str 1\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20190207T120000
DTEND;TZID=Europe/Berlin:20190207T130000
DTSTAMP:20260501T073457
CREATED:20181004T132210Z
LAST-MODIFIED:20181004T132210Z
UID:2466-1549540800-1549544400@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Marijke Haverkorn
DESCRIPTION:The Magnetic Field of the Milky Way\nThe Milky Way’s magnetic field has coherent structures on Galactic scales\, following spiral arms but also Galactic outflows. It also has a turbulent component\, which influences the galactic ecosystem in many ways\, such as delaying star formation\, isotropizing Galactic cosmic rays\, and providing significant pressure component. \nThese magnetic field components can only be detected indirectly\, through the signature they leave on various kinds of radiation and particles\, observations of which are fitted to models of the Galactic magnetic field. Traditionally\, radio polarimetry is most used to probe Galactic magnetic fields\, with radio detectors in frequency ranges from LOFAR to Planck giving unique information. \nI will discuss some of the recent progress in this field\, and our new project called IMAGINE\, which aims to combine all different observational tracers and prior information to build a next-generation model of the Galactic magnetic field.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-marijke-haverkorn/
LOCATION:ECAP\, room 307\, Erwin-Rommel-Str 1\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20190214T120000
DTEND;TZID=Europe/Berlin:20190214T130000
DTSTAMP:20260501T073457
CREATED:20190130T085139Z
LAST-MODIFIED:20190130T085139Z
UID:2624-1550145600-1550149200@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Takaaki Tanaka
DESCRIPTION:Recent Results from X-ray Studies of Supernova Remnants\nX-ray emission from supernova remnants provides us with probes to high energy phenomena such as acceleration of cosmic-ray particles and nucleosynthesis in supernova explosions. In this talk\, I will present some of recent results that I\, with my students and collaborators\, obtained from observations with Suzaku\, Chandra\, XMM-Newton\, and NuSTAR satellites. I will mainly cover results related to particle acceleration and over-ionized plasma in Galactic supernova remnants. I will also talk about expectations brought about by high resolution spectroscopy with future X-ray observatories such as XRISM\, which is scheduled to be launched in 2021.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-takaaki-tanaka/
LOCATION:ECAP\, room 307\, Erwin-Rommel-Str 1\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20190502T120000
DTEND;TZID=Europe/Berlin:20190502T130000
DTSTAMP:20260501T073457
CREATED:20190305T142845Z
LAST-MODIFIED:20190305T142845Z
UID:2639-1556798400-1556802000@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Thorsten Enßlin
DESCRIPTION:Information field theory – turning data into images\nCharting the Universe from measurements is a challenging information theoretical problem. The finite data provided by instruments is never able to constraint the infinite degrees of freedom of the physical fields we are interested in astronomy or other areas. Additional information like physical laws and empirical correlations has to be folded into the field inference. Information field theory (IFT) is information theory for field inference enabling the consistent fusion of measurement data and theoretical concepts exploiting techniques developed for quantum field theory. IFT provides optimal methods to generate images exploiting all available information. Existing applications of IFT in astrophysics are galactic tomography\, gamma- and radio- astronomical imaging\, and the analysis of cosmic microwave background data. Applications in preparation are inferring the dynamics of an observed field and the fusion of measurements from complementary instruments into coherent pictures. \n  \n \n 
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-thorsten-enslin/
LOCATION:ECAP\, room 307\, Erwin-Rommel-Str 1\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20190606T120000
DTEND;TZID=Europe/Berlin:20190606T130000
DTSTAMP:20260501T073457
CREATED:20190213T201728Z
LAST-MODIFIED:20190213T201728Z
UID:2631-1559822400-1559826000@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Lee Thompson
DESCRIPTION:HyperKamiokande: a next generation long baseline neutrino experiment in Japan\n\nThe seminar will present the HyperKamiokande (HyperK) project which will build a large volume water Cerenkov detector for long baseline neutrino oscillation studies in Japan. A brief historical resume of the discovery of neutrino oscillations will be provided. The presentation will give an overview of the design of the HyperK detector and its main technical features. Details of the scientific programme to be undertaken will also be discussed. The prospects for the project to determine fundamental measurements such as CP violation and mass hierarchy will also be presented.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-lee-thompson/
LOCATION:ECAP\, room 307\, Erwin-Rommel-Str 1\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20190613T120000
DTEND;TZID=Europe/Berlin:20190613T130000
DTSTAMP:20260501T073457
CREATED:20190314T164550Z
LAST-MODIFIED:20190314T164550Z
UID:2655-1560427200-1560430800@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Christian Glaser
DESCRIPTION:Radio detection of ultra-high energy neutrinos\nHigh energy neutrino astronomy is a powerful tool to study the high-energy universe. Neutrinos can escape dense source environments and point back to their sources with sub-degree accuracy. In particular\, multi-messenger analyses that combine neutrino detection with electromagnetic (e.g. gamma ray) and gravitational-wave observations bear huge potential to probe the sources of neutrinos and cosmic rays. The detection of neutrinos is challenging because of their small flux and cross-section\, and requires the instrumentation of huge volumes. Ultra-high energy neutrinos (E > 1e16 eV) can be efficiently measured using the radio technique\, and the cold Antarctic ice is an optimal target material. \nBefore discussing the radio detection of neutrinos\, I will briefly present the radio detection of cosmic rays\, highlighting what we can learn from this mature field for neutrino detection. Then\, I will report on the pilot neutrino detectors installed on the Ross ice shelf and at the South Pole\, discuss how neutrinos can be measured with a radio detector and how their properties can be reconstructed from the short radio flash. At the end\, I will present plans for a large-scale radio neutrino detector and discuss its prospects.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-christian-glaser/
LOCATION:ECAP\, room 307\, Erwin-Rommel-Str 1\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20190627T120000
DTEND;TZID=Europe/Berlin:20190627T130000
DTSTAMP:20260501T073457
CREATED:20190305T143659Z
LAST-MODIFIED:20190305T143659Z
UID:2641-1561636800-1561640400@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Andreas Haungs
DESCRIPTION:Cosmic rays between the knee and the ankle\nInvestigations of the energy spectrum as well as the mass composition of cosmic rays in the energy range of PeV to EeV are important for understanding both\, the origin of the galactic and the extragalactic cosmic rays. The multi-detector arrangement of KASCADE and its extension KASCADE-Grande was designed for observations of cosmic ray air showers in this energy range. Most important result from KASCADE is the proof that the knee feature at several PeV is due to a decrease in the flux of light atomic nuclei of primary cosmic rays. Results of KASCADE-Grande have now shown two more spectral features: a knee-like structure in the spectrum of heavy primaries at around 90 PeV and a hardening of the spectrum of light primaries at energies just above 100 PeV. These features are meanwhile confirmed by other experiments like Tunka\, IceCube/IceTop\, or TA/TALE. In this seminar the recent results on energy spectrum and composition are compared to each other and with astrophysical models for the energy range\, where the transition from galactic to extragalactic origin of cosmic rays are expected. In addition\, the effects of using different hadronic interaction models for interpreting the measured air-shower data will be discussed. Finally\, the KASCADE Cosmic Ray Data Centre (KCDC) is discussed\, which is a web-based platform to provide astroparticle physics data for the general public. The main purpose of KCDC is to archive original data to offer long-term scientific data for the high-energy astroparticle physics community as well as for students and the interested public via a sophisticated web portal. However\, KCDC can only be a first step into a global analysis and data centre for multi-messenger astroparticle physics.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-andreas-haungs/
LOCATION:ECAP\, room 307\, Erwin-Rommel-Str 1\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20190704T120000
DTEND;TZID=Europe/Berlin:20190704T130000
DTSTAMP:20260501T073457
CREATED:20190423T081401Z
LAST-MODIFIED:20190423T081401Z
UID:2685-1562241600-1562245200@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Iris Gebauer
DESCRIPTION:Indirect Dark Matter Searches and Cosmic Ray Transport in the Era of AMS\nThe Alpha Magnetic Spectrometer (AMS) is installed on the International Space Station (ISS) since May 2011. AMS is a complex particle detector designed to precisely measure the fluxes of cosmic rays between 0.5 GeV and a few TeV. The physics goals of the experiment include the search for possible signals of dark matter annihilation and hints for primordial antimatter in the fluxes of cosmic rays. As of recently\, new calorimetric experiments like CALET and DAMPE begin to shed even more light on the matter component in cosmic rays with high statistics measurements up to TeV energies.\nA plethora of precision results is emerging from these experiments. Many results challenge our understanding of galactic cosmic ray transport. This talk provides an overview over some of the most exiting and often surprising results from AMS\, CALET and DAMPE. I will discuss their impact on our understanding of the origin and transport of galactic cosmic rays and their contribution to indirect dark matter searches.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-iris-gebauer/
LOCATION:ECAP\, room 307\, Erwin-Rommel-Str 1\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20190711T120000
DTEND;TZID=Europe/Berlin:20190711T130000
DTSTAMP:20260501T073457
CREATED:20190305T143906Z
LAST-MODIFIED:20190305T143906Z
UID:2643-1562846400-1562850000@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Sara Buson
DESCRIPTION:High-energy neutrinos from AGN?\nWith the advent of multi-messenger observatories\, neutrino astronomy is turning into a helpful tool to investigate and put limits on the contribution of the known astrophysical objects to the diffuse neutrino background. Active Galactic Nuclei (AGN) have long been suggested among the candidate sources of cosmic high-energy neutrinos. If hadronic processes operate in the AGN jets\, a lot can be learnt by combining neutrino observations with the putative accompanying electromagnetic information. This is motivated by the fact that both radiations may be pictured in the same astrophysical particle-cascades scenario\, cascades that are ultimately originated by cosmic rays. While to date no neutrino point sources have been identified at high confidence\, a promising ground for discovery could be the search for transient and variable neutrino/electromagnetic sources\, in which case the atmospheric neutrino and muon backgrounds can be reduced by taking advantage of time- and space-coincidence. Recent outcomes in this field will be presented.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-sara-buson/
LOCATION:ECAP\, room 307\, Erwin-Rommel-Str 1\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20190718T120000
DTEND;TZID=Europe/Berlin:20190718T130000
DTSTAMP:20260501T073457
CREATED:20190423T081613Z
LAST-MODIFIED:20190423T081613Z
UID:2687-1563451200-1563454800@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Siegfried Glenzer
DESCRIPTION:Exploring extreme states of matter with an ultra-bright X-ray free-electron laser\nIn this talk\, we will review recent progress in high-energy density physics using the world’s brightest X-ray source\, the Linac Coherent Light Source\, SLAC’s free electron X-ray laser. These experiments investigate laser-driven matter in extreme conditions where powerful X-ray scattering and imaging techniques have been applied to resolve ionic interactions at atomic (Ångstrom) scale lengths and to visualize the formation of dense plasma states [1\, 2]. The major research areas include dynamic compression experiments of solid targets to determine structural properties and characterize phase transitions at conditions approaching the interior of planets. Another area studies extreme fields produced by high-intensity radiation where fundamental questions of strongly excited solids can be investigated [3]. Each of these areas takes advantage of the unique properties of the probing beam. They include small foci for achieving high intensity or high spatial resolution\, high photon or electron flux for dynamic structure factor measurements in single shots\, and high spectral bandwidth to resolve plasmon (Langmuir) waves or ion acoustic waves in dense plasmas. We will present new experimental data demonstrating several novel studies that test our fundamental understanding of matter in extreme conditions with data of sufficient accuracy to support or refute theoretical approximations. These advances have led to significant international competition and laid out the path for facility upgrades to explore ever more extreme states of matter. \n[1]  P. Sperling\, E. J. Gamboa\, H. K. Chung\, E. Galtier\, H. J. Lee\, Y. Omarbakiyeva\, H. Reinholz\, G. Röpke\, U. Zas- trau\, J. Hastings\, L. B. Fletcher\, and S. H. Glenzer\, Phys. Rev. Lett. 115\, 115001 (2015). \n[2] B. B. L. Witte\, L. B. Fletcher\, E. Galtier\, E. Gamboa\, H. J. Lee\, U. Zastrau\, R. Redmer\, S. H. Glenzer\, and P. Sperling\, Phys. Rev. Lett. 118\, 225001 (2017). \n[3] M. Mo\, Z. Chen\, R. K. Li\, M. Dunning\, B. B. L. Witte\, J. K. Baldwin\, L. B. Fletcher\, J. B. Kim\, A. Ng\, R. Redmer\, A. H. Reid\, P Shekhar\, X. Z. Shen\, M. Shen\, K. Sokolowski-Tinten\, Y. Y. Tsui\, Y. Q. Wang\, Q. Zheng\, X. J. Wang\, and S. H. Glenzer\, Science 360\, 1451-1454 (2018).
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-siegfried-glenzer/
LOCATION:ECAP\, room 307\, Erwin-Rommel-Str 1\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20190725T120000
DTEND;TZID=Europe/Berlin:20190725T130000
DTSTAMP:20260501T073457
CREATED:20190717T095140Z
LAST-MODIFIED:20190717T095140Z
UID:2757-1564056000-1564059600@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Markus Demleitner
DESCRIPTION:The VO And Why It Matters To You\nIn the most technical words\, the Virtual Observatory (VO) is an effort to enable uniform and efficient access to astronomical data. With more glitz\, it is like the Web and Google\, only for data. In this talk I will try to convince you that what sounds tedious and boring in reality is exciting and useful to your research. Thus\, after some motivation filling in the gaps in the above definitions\, I will go on describing some of the key VO technologies and ways to use them – right now\, from your desktop. I will close with an invitation to publish your data to the VO as well. \nSlides available at http://docs.g-vo.org/er.pdf.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-markus-demleitner/
LOCATION:ECAP\, room 307\, Erwin-Rommel-Str 1\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20191107T120000
DTEND;TZID=Europe/Berlin:20191107T130000
DTSTAMP:20260501T073457
CREATED:20191017T125521Z
LAST-MODIFIED:20191017T125521Z
UID:2794-1573128000-1573131600@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Sebastian Böser
DESCRIPTION:Project 8 – towards a radio frequency measurement of the neutrino mass\nWhile neutrino flavour oscillations are a clear indication that neutrinos do have non-vanishing rest masses\, their values have so far not been established experimentally. The state-of-the-art experiment KATRIN has recently set a limit for the effective electron neutrino mass at mβ < 1.1 eV/c² @ 90%CL. However\, cosmological observations indicate that Σm𝜈 < 0.12eV/c²\, well below KATRINs final projected sensitivity at m_𝜈 < 0.2 meV/c². As the MAC-E filter technology employed in KATRIN can not be scaled easily\, new technologies are required to measure the neutrino mass in the lab. Towards this goal\, the Project 8 collaboration has established Cyclotron Radiation Emission Spectroscopy as a new experimental method. In a four phased approach\, this technique is employed in precision endpoint spectroscopy on tritium. For the final stage of the experiment\, an atomic tritium setup is envisioned that allows a sensitivity of m_𝜈 < 0.04 meV/c²
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-sebastian-boser/
LOCATION:ECAP\, room 307\, Erwin-Rommel-Str 1\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20191205T120000
DTEND;TZID=Europe/Berlin:20191205T130000
DTSTAMP:20260501T073457
CREATED:20191022T130053Z
LAST-MODIFIED:20191022T130053Z
UID:2808-1575547200-1575550800@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Eckhard Sturm
DESCRIPTION:The core of the matter – spatially resolving the nuclei of Active Galaxies with VLTI/GRAVITY\nOne of the most exciting opportunities offered by the new VLT beam combiner GRAVITY is to directly resolve the immediate regions around the super-massive black holes (SMBHs) in the centres of active galaxies (AGN)\, i.e. the Broad Line Region (BLR) and the hot dust (“torus”) structures. We are exploiting this capability to study the inner workings of AGN in the K-band on unprecedented micro-arcsecond (sub-pc) spatial scales. This has led to the first interferometric detection of a BLR (finding ordered rotation and measuring the black hole mass in the quasar 3C273)\, as well as to the first 0.2 parsec resolution K-band image of the dust sublimation region in the nucleus of the Seyfert 2 galaxy NGC1068 (finding a ring-like structure which is inconsistent with the expected signatures of a geometrically and optically thick torus). After a short introduction to the GRAVITY instrument and the principles of interferometry with GRAVITY\, I will summarize these and other recent results\, discuss their scientific (and historical) context\, and give an outlook how such observations might contribute to the study of the structures and physical processes around SMBHs or to the study of how SMBHs build up their mass across cosmic time.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-eckhard-sturm/
LOCATION:ECAP\, room 307\, Erwin-Rommel-Str 1\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20191212T120000
DTEND;TZID=Europe/Berlin:20191212T130000
DTSTAMP:20260501T073457
CREATED:20191017T130203Z
LAST-MODIFIED:20191017T130203Z
UID:2798-1576152000-1576155600@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Jörg Hörandel
DESCRIPTION:Measuring the properties of cosmic rays with the radio technique\nThe radio emission from air showers is now routinely detected to measure the properties of cosmic rays. An overview is given on recent experimental activities\, including observations with the LOFAR radio telescope and the Auger Engineering Radio Array at the Pierre Auger Observatory. Recent results will be discussed. We will give an outlook on our ongoing project to equip all surface detectors of the Auger observatory with radio antennas\, forming a 3000 km2 radio array.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-jorg-horandel/
LOCATION:ECAP\, room 307\, Erwin-Rommel-Str 1\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20200109T120000
DTEND;TZID=Europe/Berlin:20200109T130000
DTSTAMP:20260501T073457
CREATED:20191017T130525Z
LAST-MODIFIED:20191017T130525Z
UID:2800-1578571200-1578574800@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Klaus Desch
DESCRIPTION:Axions from Sun? Exploring the low-energy frontier with the IAXO experiment\nAxions are ultralight hypothetical particles originally postulated to explain the observed smallness of the neutron´s electric dipole moment and its connection with the so-called strong CP-problem\, i.e. the fact that QCD allows for CP violation while Nature apparently does not. Meanwhile it is clear that axions\, and more generally axion-like particles (ALPs)\, may also serve as interesting candidates for the observed Dark Matter and may explain certain astrophysical anomalies. If axions exist\, they are copiously produced in our Sun and may be detected through their small effective coupling to electro-magnetic fields. A promising approach is their conversion into soft X-ray photons in strong magnetic fields and subsequent detection.\nIn the talk\, I will lay out the experimental scene of axion searches around the globe and then focus on a new proposal\, the International Axion Observatory (IAXO) and its smaller predecessor\, BabyIAXO to be constructed at DESY in Hamburg. I will discuss the layout of the experiment\, ongoing R&D towards its realization and its sensitivity and discovery potential as well the time scale towards realization.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-klaus-desch/
LOCATION:ECAP\, room 307\, Erwin-Rommel-Str 1\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20200116T120000
DTEND;TZID=Europe/Berlin:20200116T130000
DTSTAMP:20260501T073457
CREATED:20191203T133851Z
LAST-MODIFIED:20191203T133851Z
UID:2913-1579176000-1579179600@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Jim Hinton
DESCRIPTION:HAWC\n[abstract not available yet]
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-jim-hinton/
LOCATION:ECAP\, room 307\, Erwin-Rommel-Str 1\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20200123T120000
DTEND;TZID=Europe/Berlin:20200123T130000
DTSTAMP:20260501T073457
CREATED:20191203T133711Z
LAST-MODIFIED:20191203T133711Z
UID:2911-1579780800-1579784400@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Brian Reville
DESCRIPTION:Cosmic-ray acceleration – limits and laboratories\nI will review the current theoretical status of shock acceleration at supernova type shocks\, with an emphasis on the plasma theory and implications for limitation on maximum energy. The current hypotheses will be put to the test in a surprising scaled down laboratory\, the binary system Eta Carinae.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-brian-reville/
LOCATION:ECAP\, room 307\, Erwin-Rommel-Str 1\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20200618T120000
DTEND;TZID=Europe/Berlin:20200618T130000
DTSTAMP:20260501T073457
CREATED:20200616T095606Z
LAST-MODIFIED:20200616T095606Z
UID:3033-1592481600-1592485200@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Dieter Horns
DESCRIPTION:The Crab nebula and pulsar – particle acceleration at the limit\nThe Crab Nebula is the front-page object of multi-wavelength astrophysics and an excellent object to study non-thermal emission and particle acceleration. The Crab Pulsar powers the extreme accelerator regions that inject an ultra-relativistic plasma into the surrounding nebula. The exceptionally well-defined spectral energy distribution has been measured from the lowest accessible frequencies to the highest photon energies beyond 100 TeV. In this talk\, I will provide an overview on the recent first-time measurements of spatial extension of the nebula from several GeV to TeV energies and the implications to the magnetic field strength and its spatial dependence in the Nebula. Besides the spatially resolved structure of the nebular emission\, we have found episodes of dimming of the synchrotron emission\, indicating that the highest energy electrons are confined to a compact region that we tentatively identify with the inner knot close to the pulsar’s position.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-2020-06-18-dieter-horns/
LOCATION:Zoom
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20200702T120000
DTEND;TZID=Europe/Berlin:20200702T130000
DTSTAMP:20260501T073457
CREATED:20200617T100717Z
LAST-MODIFIED:20200617T100717Z
UID:3046-1593691200-1593694800@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Muhammad Kasim
DESCRIPTION:Up to two billion times acceleration of scientific simulations with deep neural architecture search\nComputer simulations are invaluable tools for scientific discovery. However\, accurate simulations are often slow to execute\, which limits their applicability to extensive parameter exploration\, large-scale data analysis\, and uncertainty quantification. A promising route to accelerate simulations by building fast emulators with machine learning requires large training datasets\, which can be prohibitively expensive to obtain with slow simulations. Here we present a method based on neural architecture search to build accurate emulators even with a limited number of training data. The method successfully accelerates simulations by up to 2 billion times in 10 scientific cases including astrophysics\, climate science\, biogeochemistry\, high energy density physics\, fusion energy\, and seismology\, using the same super-architecture\, algorithm\, and hyperparameters. Our approach also inherently provides emulator uncertainty estimation\, adding further confidence in their use. We anticipate this work will accelerate research involving expensive simulations\, allow more extensive parameters exploration\, and enable new\, previously unfeasible computational discovery.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-2020-07-02-muhammad-kasim/
LOCATION:Zoom
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20200730T120000
DTEND;TZID=Europe/Berlin:20200730T130000
DTSTAMP:20260501T073457
CREATED:20200617T101240Z
LAST-MODIFIED:20200617T101240Z
UID:3049-1596110400-1596114000@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Anita Reimer
DESCRIPTION:Identifying sources of high-energy neutrinos of the AGN type: A theoretical approach\nActive galactic nuclei (AGN) have long been predicted to emit neutrinos if they host sites of cosmic-ray acceleration to very high energies. Until a few years ago neutrino astrophysics was merely a prediction by (some) cosmic-ray theorists. It became reality with the first discovery of an astrophysical neutrino flux ~7 years ago. Although the origin of these neutrinos remains unclear up to now\, jets of AGN remain among the prime candidate sources.\nIn this presentation I will discuss the multimessenger approach in the framework of hadronic AGN emission models from a theoretical perspective. Special emphasis will be given on external target photon fields. \n  \n 
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-2020-07-30-anita-reimer/
LOCATION:Zoom
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20210412T160000
DTEND;TZID=Europe/Berlin:20210412T170000
DTSTAMP:20260501T073457
CREATED:20210411T161731Z
LAST-MODIFIED:20210411T161731Z
UID:3394-1618243200-1618246800@ecap.nat.fau.de
SUMMARY:ECAP mini-series Exploring Gravity: Ira Thorpe
DESCRIPTION:LISA – Bringing the Gravitational Wave Revolution to Space\nGravitational Wave (GW) observatories are humanity’s newest tool for studying the universe. After decades of development efforts\, terrestrial interferometers such as LIGO and Virgo are now routinely detecting ripples in the fabric of spacetime caused by distant astrophysical cataclysms such as the collision of black holes. Early results from these instruments have already provided answers to long-standing questions in astrophysics and\, more importantly\, introduced new questions of their own. However\, even as instruments on the Earth continue to improve\, there will be vast portions of the GW spectrum that will not be accessible due to their limited size and noise in the terrestrial environment. Space-based interferometers a million times larger than their terrestrial cousins will probe the milliHertz GW spectrum\, home to a rich variety of astrophysical signals. \nIn this talk\, I will provide an overview of the Laser Interferometer Space Antenna (LISA)\, an international collaboration to develop the first space-based GW interferometer. I will describe the science applications\, the mission concept\, and key technologies behind what will be the largest scientific instrument ever constructed. I will also highlight the contributions of LISA Pathfinder\, a European-led technology demonstration mission that validated several critical aspects of the LISA concept.
URL:https://ecap.nat.fau.de/index.php/event/ecap-mini-series-exploring-gravity-ira-thorpe/
LOCATION:Zoom
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20210415T160000
DTEND;TZID=Europe/Berlin:20210415T170000
DTSTAMP:20260501T073457
CREATED:20210411T161812Z
LAST-MODIFIED:20210411T161812Z
UID:3397-1618502400-1618506000@ecap.nat.fau.de
SUMMARY:ECAP mini-series Exploring Gravity: Frank Eisenhauer
DESCRIPTION:Infrared Interferometry of the Galactic Center Black Hole\nThe Galactic Center harbors the nearest massive black hole. With a distance of only 8 kpc\, it is the closest laboratory to study the astrophysical processes at work in these extreme objects\, and to probe Einstein’s general theory of relativity in the regime of strong gravity. Our presentation gives an overview of the GRAVITY infrared interferometry observations leading to the detection of the gravitational redshift and the Schwarzschild precession in the orbit of a star orbiting the black hole in a 16 yr orbit\, and the observations of orbital motion of hot gas close to the innermost stable orbit. We further present the perspective for future measurements of the spin and quadrupole of the black hole by combining infrared interferometry and spectroscopy form extremely large telescopes\, which will then also test the cosmic censorship and no hair theorem of black holes.
URL:https://ecap.nat.fau.de/index.php/event/ecap-mini-series-exploring-gravity-frank-eisenhauer/
LOCATION:Zoom
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20210422T130000
DTEND;TZID=Europe/Berlin:20210422T140000
DTSTAMP:20260501T073457
CREATED:20210409T113534Z
LAST-MODIFIED:20210409T113534Z
UID:3362-1619096400-1619100000@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Ruben Lopez Coto
DESCRIPTION:TeV Halos and their connection to the local Leptonic Cosmic Ray flux\nThe origin and propagation of cosmic rays (CRs) is one of the most important questions in astroparticle physics nowadays. CRs generated by known sources also serve as background to those putatively generated by more exotic phenomena. Apart from the known electrons of primary origin and positrons of secondary one\, pulsars and sources powered by them are one of the main candidates to contribute to the total amount of CR electrons and positrons. TeV halos are sources powered by a central pulsar whose electrons and positrons have escaped from the shock region dominated by the pulsar wind and are freely propagating into the interstellar medium. They have been postulated only a couple of years ago and up to date there are only two confirmed sources. In this talk\, I will give a review of the current understanding of TeV halos\, the observational status and their contribution to the CR sea in the Galaxy. \n 
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-ruben-2021-04-22-lopez-coto/
LOCATION:Zoom
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20210429T130000
DTEND;TZID=Europe/Berlin:20210429T140000
DTSTAMP:20260501T073457
CREATED:20210409T114201Z
LAST-MODIFIED:20210409T114201Z
UID:3366-1619701200-1619704800@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Raimund Strauss
DESCRIPTION:Coherent neutrino scattering: from experimental challenges to new frontiers in neutrino physics\nThe detection of coherent-neutrino nucleus scattering (CEvNS) opens a new window to study the fundamental properties of neutrinos and to probe physics beyond the Standard Model of Particle Physics. Given the very low recoil energies (eV – keV) predicted for this weak neutral-current process\, it has only recently been observed experimentally. Favorably\, due to the coherency of the interaction\, the cross-section of CEvNS is typically 2 – 4 orders of magnitude larger than classical neutrino interactions\, which leads to a dramatic miniaturization of neutrino detectors: instead of using multi-ton detector apparatuses\, neutrino detection with compact devices of kg or even g in total mass is in reach. We have established a new experimental approach for a first measurement of CEvNS at a nuclear reactor – the NUCLEUS experiment. With dedicated cryogenic detectors\, for which we have demonstrated world-record energy thresholds of ~20 eV\, we will probe neutrino properties and scenarios for new physics at unprecedentedly low energies. In this seminar\, I will give an overview of this young and growing research field\, and present the status and physics potential of NUCLEUS.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-2021-04-29-raimund-strauss/
LOCATION:Zoom
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20210506T130000
DTEND;TZID=Europe/Berlin:20210506T140000
DTSTAMP:20260501T073457
CREATED:20210409T111007Z
LAST-MODIFIED:20210409T111007Z
UID:3358-1620306000-1620309600@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Maryam Modjaz
DESCRIPTION:Stellar Forensics with the Most Powerful Explosions in the Universe\nCore-collapse Supernovae (SNe)\, Long-duration Gamma-ray Bursts (GRBs) and exotic transients are exploding massive stars and constitute the most powerful explosions in the universe. Because they are visible over large cosmological distances\, release elements heavier than Helium\, and leave behind extreme remnants such as black holes\, they are fascinating objects\, as well as crucial tools for many areas of astrophysics.However\, for many decades the fundamental question of which stellar systems give rise to which kinds of explosions has remained outstanding. I will discuss the exciting recent progress that we have made on this question in key areas by publishing and thoroughly analyzing the largest data sets in the world at the time\, as well as by developing sophisticated radiative transfer methods to reconstruct the exploded star. I will conclude with an outlook on how the most promising venues of research – using the existing and upcoming innovative large time-domain surveys such as Zwicky Transient Facility II and Rubin’s LSST – will shed new light on the diverse deaths of stars.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-maryam-modjaz/
LOCATION:Zoom
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20210521T140000
DTEND;TZID=Europe/Berlin:20210521T150000
DTSTAMP:20260501T073457
CREATED:20210423T154705Z
LAST-MODIFIED:20210423T154705Z
UID:3551-1621605600-1621609200@ecap.nat.fau.de
SUMMARY:ECAP mini-series Exploring Gravity: Michèle Heurs
DESCRIPTION:Gravitational waves in a new light\nUltra-precisely stabilised lasers are the interferometric light sources at the heart of gravitational wave detectors. To achieve ever-higher detection rates for meaningful gravitational wave astronomy\, ever-greater detection sensitivity is required. In this talk\, I will introduce the principle of interferometric gravitational wave detection\, and highlight some of the advanced technologies employed in Advanced LIGO. \nCurrent-generation gravitational wave detectors are already limited by quantum noise of the laser light over wide ranges of their detection band. One sophisticated technique that is already routinely being employed to increase the quantum-limited sensitivity of gravitational wave detectors is the use of non-classical (fixed-quadrature squeezed) light. I will conclude my talk by showing some recent results\, as well as options for quantum noise reduction in laser interferometry and the broader field of quantum optics.
URL:https://ecap.nat.fau.de/index.php/event/ecap-mini-series-exploring-gravity-michele-heurs/
LOCATION:Zoom
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20210610T130000
DTEND;TZID=Europe/Berlin:20210610T140000
DTSTAMP:20260501T073457
CREATED:20210525T082229Z
LAST-MODIFIED:20210525T082229Z
UID:3603-1623330000-1623333600@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Alexander Kappes
DESCRIPTION:Recent results from IceCube and the future of neutrino astronomy at the South Pole\nThe IceCube neutrino observatory at the geographic South Pole has now been operating at full capacity for ten years. Following the first observation of astrophysical neutrinos in the TeV — PeV energy range in 2013\, cosmic neutrinos have been established as an important information carrier for exploring the high-energy universe in the context of multi-messenger observations. However\, despite a first compelling evidence\, the sources of high-energy neutrinos remain largely hidden\, indicating a complex neutrino sky.\nAfter an introduction to neutrino astronomy as well as the operation principle of neutrino telescopes and the challenges of building a neutrino detector at the South Pole\, the talk will highlight recent results from IceCube. Finally\, an outlook on future enhancements of IceCube is given\, which aim at addressing the open questions.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-2021-06-10-alexander-kappes/
LOCATION:Zoom
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20210617T130000
DTEND;TZID=Europe/Berlin:20210617T140000
DTSTAMP:20260501T073457
CREATED:20210525T111812Z
LAST-MODIFIED:20210525T111812Z
UID:3608-1623934800-1623938400@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Rodrigo Guedes Lang
DESCRIPTION:Origin of UHECR: current status of a decades-long open question\nUltra-high-energy cosmic rays (UHECR) are the most energetic known particles of the Universe\, being accelerated to energies up to 7 orders of magnitude higher than those achieved in human-made accelerators. Their origins\, however\, remain an intriguing puzzle even decades after their discovery. In this seminar\, the current status of this puzzle will be discussed. The state-of-the-art experiments will be presented as well as a compilation of relevant data collected so far. The power and limitations of phenomenological studies to decipher this question will be discussed\, focusing on models to estimate the role of local UHECR sources.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-2021-06-17-rodrigo-guedes-lang/
LOCATION:Zoom
CATEGORIES:Seminar
END:VEVENT
END:VCALENDAR