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BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20210506T130000
DTEND;TZID=Europe/Berlin:20210506T140000
DTSTAMP:20260503T192804
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:20260503T192804
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:20260503T192804
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:20260503T192804
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
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20210624T130000
DTEND;TZID=Europe/Berlin:20210624T140000
DTSTAMP:20260503T192804
CREATED:20210415T150522Z
LAST-MODIFIED:20210415T150522Z
UID:3467-1624539600-1624543200@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Katharina-Sophie Isleif
DESCRIPTION:Light-Shining-Through-A-Wall: The ALPS II experiment at DESY\nThe ALPS II at DESY in Hamburg is a light-shining-through-a-wall (LSW) experiment searching for axion-like elementary particles in the sub eV mass range\, which are motivated by astrophysics and cosmology. ALPS II aims at an axion-photon coupling sensitivity which is several orders of magnitude better than that of previous LSW experiments and will thus investigate a new parameter range. This is achieved by an increased magnetic field interaction length and by optical cavities on both sides of the wall\, which further amplify the signal.\nIn this talk\, the working principle of LSW experiments and the uniqueness and technological challenges of the ALPS II experiment will be explained. Interim results of previous investigations will be presented\, as well as the current status. By converting axions to photons\, we expect a rate of only 1 photon per day. The two sophisticated detector schemes\, coherent heterodyne detection and a cryogenic single photon detector\, are also presented and their implementation in the ALPS II experiment is discussed. ALPS II is aiming at a first data run in late 2021.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-2021-06-24-katharina-sophie-isleif/
LOCATION:Zoom
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20211021T130000
DTEND;TZID=Europe/Berlin:20211021T140000
DTSTAMP:20260503T192804
CREATED:20211013T103540Z
LAST-MODIFIED:20211013T103540Z
UID:3766-1634821200-1634824800@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Kay Graf
DESCRIPTION:The ECAP Laboratory\nThe ECAP Laboratory will provide the infrastructure for the experimental-based research of the scientific groups of the institute. The concept of this “Forschungsbau” as well as the timeline for the completion and start of operation will be presented.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-2021-10-21-kay-graf/
LOCATION:Zoom
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20211104T130000
DTEND;TZID=Europe/Berlin:20211104T140000
DTSTAMP:20260503T192804
CREATED:20211013T104333Z
LAST-MODIFIED:20211013T104333Z
UID:3770-1636030800-1636034400@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Christian Glaser
DESCRIPTION:Radio Detection of High Energy Neutrinos and Deep Learning\nIn this seminar talk\, I will present the current status of in-ice radio detection of ultra-high-energy (UHE\, E > 10^16 eV) neutrinos and how we use deep learning to improve the trigger system and event reconstruction. UHE neutrinos are connected to the most energetic phenomena in our universe and neutrino astronomy is a powerful tool to study the high-energy universe. Their small flux and cross-section require the instrumentation of huge volumes which can be achieved with a sparse array of radio detector stations installed in polar ice sheets. I will report on the results from the pilot arrays ARA and ARIANNA\, the status of the Radio Neutrino Observatory in Greenland (RNO-G) that is currently being deployed and the plans for IceCube-Gen2.\nIn the second part\, I will talk about the usage of deep learning techniques. I will present a pilot study that uses a small convolutional neural network for a real-time rejection of thermal noise which allows to lower the trigger thresholds and leads to an increase in neutrino sensitivity by up to a factor of two. Furthermore\, I will present reconstruction algorithms for the neutrino direction\, energy and flavor based on deep neural networks\, that – for the first time – allowed to quantify the sensitivity to the neutrino flavor.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-2021-11-04-christian-glaser/
LOCATION:Zoom
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20211202T130000
DTEND;TZID=Europe/Berlin:20211202T140000
DTSTAMP:20260503T192804
CREATED:20211123T111230Z
LAST-MODIFIED:20211123T111230Z
UID:3802-1638450000-1638453600@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Georg Lamer
DESCRIPTION:Two years of eROSITA all-sky surveys: The variable X-ray sky\nThe eROSITA telescope onboard the SRG satellite was launched on 13 July 2019. After an initial phase of calibration and performance verification observations eROSITA started its all-sky survey operation in December 2019. Covering the entire sky within 6 months\, eROSITA is now close to completing its 4th all-sky survey in the 0.2-10 keV band. With the repeated detection of about 1 Million sources in each of the surveys\, the eROSITA surveys are a particularly rich resource for the study of variable X-ray sources.\nI will report on selected highlights of the mission such as an accurate distance measurement towards a Black Hole candidate using dust scattering\, the observation of isolated neutron stars\, or of galaxies caught in the moment of ignition or shut-down of their active nuclei.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-2021-12-02-georg-lamer/
LOCATION:Zoom
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20211217T110000
DTEND;TZID=Europe/Berlin:20211217T120000
DTSTAMP:20260503T192805
CREATED:20211109T204402Z
LAST-MODIFIED:20211109T204402Z
UID:3796-1639738800-1639742400@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Alberto Dominguez
DESCRIPTION:Galaxy evolution and cosmology using gamma rays observed with Fermi-LAT\nThe light emitted by all galaxies across the history of the Universe is encoded in the intensity of the extragalactic background light (EBL)\, the diffuse cosmic radiation field at ultraviolet\, optical\, and infrared wavelengths. The EBL is a source of opacity for very high energy gamma rays via pair production\, leaving a characteristic attenuation imprint in the spectra of distant gamma-ray sources. In this seminar\, I will report on new measurements of the EBL using gamma-ray data from both the Large Area Telescope on board the Fermi Gamma-ray Space Telescope and ground-based Imaging Atmospheric Cherenkov Telescopes. These unprecedented measurements have allowed us to derive the cosmic star-formation history\, the number density of faint galaxies during the re-ionization epoch\, and also the expansion rate of the Universe and its matter content. These results demonstrate that gamma-ray astrophysics has matured to the point of providing competitive measurements of cosmic properties previously restricted to techniques used by more traditional astronomy.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-2021-12-17-alberto-dominguez/
LOCATION:ECAP\, room 307\, Erwin-Rommel-Str 1\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220113T130000
DTEND;TZID=Europe/Berlin:20220113T140000
DTSTAMP:20260503T192805
CREATED:20211123T163806Z
LAST-MODIFIED:20211123T163806Z
UID:3808-1642078800-1642082400@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Hans Dembinski
DESCRIPTION:The Muon Puzzle in cosmic-ray induced air showers and its connection to the LHC\nHigh-energy cosmic rays are observed indirectly by detecting extensive particle showers initiated in Earth’s atmosphere. These so-called air showers are hadronic cascades which produce a muon component via hadron decay. The muon number is a key observable to infer the mass composition of cosmic rays. The interpretation of air shower observations relies on accurate interaction models\, which is a challenge and an opportunity to test quantum chromodynamics (QCD) under extreme conditions. Air shower simulations with state-of-the-art QCD models show a significant muon deficit with respect to measurements; this is called the Muon Puzzle. The origin of this discrepancy has been traced to the composition of secondary particles in hadronic interactions. The muon discrepancy starts at the TeV scale in the centre-of-mass frame\, which suggests that the origin should be observable at the Large Hadron Collider (LHC). An effect that can potentially explain the puzzle has been observed at the LHC\, but needs to be confirmed with forward facing experiments\, and with future data on oxygen beams.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-2022-01-13-hans-dembinski/
LOCATION:ECAP\, room 307\, Erwin-Rommel-Str 1\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220127T130000
DTEND;TZID=Europe/Berlin:20220127T140000
DTSTAMP:20260503T192805
CREATED:20211123T164026Z
LAST-MODIFIED:20211123T164026Z
UID:3810-1643288400-1643292000@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Hao Zhou
DESCRIPTION:Recent highlights from the LHAASO observatory\nThe Large High Altitude Air Shower Observatory (LHAASO)\, located in China at 4410m above sea level\, is a complex of extensive air shower (EAS) detector array. Utilizing different detection techniques\, LHAASO surveys the entire northern gamma-ray and cosmic-ray sky with a wide energy range from sub-TeV to PeV energies. \nThe full array of LHAASO has been operational since July 2021. With data collected with a partial array in 2020\, LHAASO found a dozen UHE gamma-ray sources\, with an unprecedented highest photon energy of 1.4 ± 0.13 PeV. These findings confirmed the existence of PeV particle accelerators in our Galaxy and opened up an era of ultra-high-energy gamma-ray astronomy. \nIn this talk\, I will summarize the status of the LHAASO experiment and present recent highlights from the LHAASO observatory.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-2022-01-27-hao-zhou/
LOCATION:Zoom
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220210T130000
DTEND;TZID=Europe/Berlin:20220210T140000
DTSTAMP:20260503T192805
CREATED:20220104T153753Z
LAST-MODIFIED:20220104T153753Z
UID:3820-1644498000-1644501600@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Michael Stelzig
DESCRIPTION:Radar based exploration of subglacial structures\nIce-penetrating radar is one of the most important techniques in glaciological research. Applications can range from gaining insights about the internal structure of glaciers and ice sheets\, to calculating ice volume\, to the detection of hidden features such as crevasses. Recent advances in electronics and radar signal processing offer a huge potential for newly developed\, state-of-the-art ice-penetrating radar systems. Furthermore\, ice-penetrating radar is one of the major instruments for space exploration especially for missions to the Ocean Worlds of the Solar System. \nHence\, several research projects have been started at the Institute of Microwaves and Photonics (LHFT) to address this topic. In this talk\, those research activities are summarized together with the presentation of recent results.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-2022-02-10-michael-stelzig/
LOCATION:Zoom
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220427T130000
DTEND;TZID=Europe/Berlin:20220427T140000
DTSTAMP:20260503T192805
CREATED:20220407T132300Z
LAST-MODIFIED:20220407T132300Z
UID:3922-1651064400-1651068000@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Kay Graf\, Stefan Funk
DESCRIPTION:New ECAP Lab information\nStefan and Kay will report on the status\, the usage strategy and the next steps for the ECAP Laboratory.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-2022-04-27-kay-graf-stefan-funk/
LOCATION:ECAP\, room 307\, Erwin-Rommel-Str 1\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220512T130000
DTEND;TZID=Europe/Berlin:20220512T140000
DTSTAMP:20260503T192805
CREATED:20220506T075833Z
LAST-MODIFIED:20220506T075833Z
UID:3950-1652360400-1652364000@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Silvia Celli
DESCRIPTION:On the radiation signatures of Galactic PeVatrons: the gamma-ray and neutrino perspective\nVery-high-energy gamma rays and neutrinos are crucial messengers for assessing the PeVatron nature of cosmic sources. In particular\, supernova remnants (SNRs) are since long time believed to be the major contributors to the Galactic cosmic-ray flux observed at Earth. Despite experimental efforts devoted to the identification of PeV activity in SNRs\, such a picture remains yet to be confirmed. Additionally\, the poor knowledge of the magnetic turbulence development and evolution in these sources still prevent us from a full understanding of the process of particle acceleration and propagation at SNR shocks. In this contribution\, I will review the current status of the SNR paradigm for the origin of cosmic rays\, highlighting how (current and future) gamma-ray and neutrino observations can contribute to test this scenario and possibly provide constraints to model parameters. At the same time\, I will also discuss how some features in the cosmic-ray spectrum are possibly related to run-away particles injected by SNRs in the Galaxy\, and what information do they provide about these sources.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-2022-05-12-silvia-celli/
LOCATION:ECAP\, room 307\, Erwin-Rommel-Str 1\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220519T140000
DTEND;TZID=Europe/Berlin:20220519T150000
DTSTAMP:20260503T192805
CREATED:20220507T114049Z
LAST-MODIFIED:20220507T114049Z
UID:3956-1652968800-1652972400@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Brian Hare
DESCRIPTION:Revealing Lightning with the LOFAR radio telescope\nLightning is an extremely complex phenomena that is still only poorly understood. For example\, we do not know how lightning initiates\, how it propagates\, or why it emits intense bursts of gamma radiation. One fundamental difficulty in studying lightning is that the best state-of-the-art models are only applicable to spatial regions below a meter in size\, while most observations have 10-100 m resolution. This leaves a large gap between what can been modeled and what can be measured. In the last few years\, however\, our group has started using the LOFAR radio telescope to probe lightning at meter and nanosecond scale resolution and have made tremendous progress in closing the gap between modeling and measurement. In this talk I will discuss the current state of lightning science\, how we are using the LOFAR radio telescope to image lightning\, and exciting new insights that LOFAR is giving into the initiation and propagation of lightning.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-2022-05-19-brian-hare/
LOCATION:ECAP\, room 307\, Erwin-Rommel-Str 1\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220521T180000
DTEND;TZID=Europe/Berlin:20220521T235900
DTSTAMP:20260503T192805
CREATED:20220510T121430Z
LAST-MODIFIED:20220510T121430Z
UID:3959-1653156000-1653177540@ecap.nat.fau.de
SUMMARY:Long Night of Sciences 2022
DESCRIPTION:During the Long Night of Sciences in 2022 the Erlangen Centre for Astroparticle Physics will once again be part of the program. Scientists from different ECAP groups will present their work in an exhibition with posters and many exhibition items: A cloud chamber\, a scale model of a modern gamma-ray telescope\, animated event displays of neutrino telescopes and many more. Our scientists are eager to give insights into their current research and welcome any questions from the general public. \nAdditionally\, at the same venue there will be hourly talks about various interesting physics topics including contributions from ECAP scientists; as well as fascinating physics experiments performed regularly throughout the evening.
URL:https://ecap.nat.fau.de/index.php/event/long-night-of-sciences-2022/
LOCATION:Hörsaalgebäude Physikum\, Staudtstr. 5\, Erlangen\, 91058\, Germany
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220602T131500
DTEND;TZID=Europe/Berlin:20220602T141500
DTSTAMP:20260503T192805
CREATED:20220510T195823Z
LAST-MODIFIED:20220510T195823Z
UID:3964-1654175700-1654179300@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Patrick Gröschel
DESCRIPTION:Multi-path tolerant beacon localization using a high antenna-count receiver\nIn classic radar localization scenarios the transmitter and the receiver are in the same spot localizing a passive target by illuminating it with EM waves. However\, more and more localization applications arise\, where there is an active beacon/transmitter which is to be localized by some multiple-antenna base station\, e.g. a forklift in a warehouse\, a car in an urban scene\, and many more. For those localization applications\, electromagnetic waves in the microwave spectrum are well suited\, especially when exploiting the knowledge about the phase relations of the receive signal at different antennas of the receiver. The applied localization algorithms generally consider the EM wave to travel directly from the beacon to the base station\, which is not true in a reflective environment (warehouse\, city\, etc.). In such environments the wave also travels along non-direct paths from the beacon to the receiver due to reflections causing the so called “multi-path propagation”\, which causes heavy degradation of the localization accuracy especially in phase-based localization algorithms.\nIn this talk an algorithm is presented which uses compressed sensing and a high antenna count and physically large multi-channel receiver in order to estimate and subtract the impact of the non-direct propagation paths from the receive signal. Based on measurements in a 5.8 GHz radio setup\, it will be shown that this algorithm is well-suited to improve the position estimations in such scenarios.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-2022-06-02-patrick-groschel/
LOCATION:Zoom
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220623T130000
DTEND;TZID=Europe/Berlin:20220623T140000
DTSTAMP:20260503T192805
CREATED:20220620T093007Z
LAST-MODIFIED:20220620T093007Z
UID:3981-1655989200-1655992800@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Prasenjit Saha
DESCRIPTION:Next-generation optical interferometry\, or the return of Hanbury Brown and Twiss\nHanbury Brown and Twiss are rightly famous as the pioneers of quantum optics in the 1950s\, but their real goal was astronomical imaging to the sub-milliarcsecond scale and beyond\, enough to resolve stars. This talk will explain how their counter-intuitive technique of intensity interferometry works\, and why it has become topical in the 2020s. Four science cases will be briefly discussed: the mass-radius relation in stars\, astrometric planet searching\, transient fireballs such as novae\, and finally\, a novel test for LISA.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-2022-06-23-prasenjit-saha/
LOCATION:ECAP\, room 307\, Erwin-Rommel-Str 1\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220630T130000
DTEND;TZID=Europe/Berlin:20220630T140000
DTSTAMP:20260503T192805
CREATED:20220627T112634Z
LAST-MODIFIED:20220627T112634Z
UID:3987-1656594000-1656597600@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Juergen Schmitt
DESCRIPTION:The stellar content of the eROSITA all-sky survey\nThe eROSITA instrument onboard the Russian-German SRG mission has so far completed more than four all-sky surveys and detected millions of new X-ray sources. Coronal X-ray sources\, i.e. X-ray emitters similar to our Sun\, constitute a significant fraction of the overall eROSITA source count\, yet these X-ray detected stars have properties quite different from those found for the Sun. X-ray emission is the most important proxy indicator for “stellar magnetic activity”\, hence an X-ray survey like that of eROSITA provides insights into the youth of the Sun\, when it was as “magnetically active” as the vast majority of the eROSITA detected stellar X-ray sources. The availability of precise astrometry from the Gaia satellite allows the complete identification of the stellar X-ray sky including an age assessment of the underlying sources. \nI will discuss and highlight these new research opportunities by providing recent eROSITA results on the Sco-Cen star forming region and very energetic eruptions from young stars.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-2022-06-30-juergen-schmitt/
LOCATION:ECAP\, room 307\, Erwin-Rommel-Str 1\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220707T130000
DTEND;TZID=Europe/Berlin:20220707T140000
DTSTAMP:20260503T192805
CREATED:20220414T094721Z
LAST-MODIFIED:20220414T094721Z
UID:3931-1657198800-1657202400@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Felix Kling
DESCRIPTION:Looking forward to exciting physics with FASER\nPhysics searches and measurements at high-energy collider experiments traditionally focus on the high-pT region. However\, if particles are light and weakly-coupled\, this focus may be completely misguided: light particles are typically highly collimated around the beam line\, allowing sensitive searches with small detectors\, and even extremely weakly-coupled particles may be produced in large numbers there. The FASER experiment will use the opportunity and extend the LHC’s physics potential by searching for long-lived particles and studying neutrino interactions at TeV energies. In this talk\, I will present the physics potential of FASER for new physics searches\, neutrino physics and QCD and astro-particle physics.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-2022-07-07-felix-kling/
LOCATION:ECAP\, room 307\, Erwin-Rommel-Str 1\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20221027T130000
DTEND;TZID=Europe/Berlin:20221027T140000
DTSTAMP:20260503T192805
CREATED:20220617T130652Z
LAST-MODIFIED:20220617T130652Z
UID:3977-1666875600-1666879200@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Miguel Sanchez-Conde
DESCRIPTION:Dark satellites as cosmological probes and gamma-ray dark matter targets\nA prediction of the standard LCDM cosmological model is that dark matter (DM) halos are teeming with numerous self-bound substructure\, or subhalos. At small scales\, subhalos may host no stars/gas at all and thus may not have visible astrophysical counterparts. The existence and precise properties of these ‘dark satellites’ represent important probes of the underlying cosmological model. Also\, they may play a key role on the search for DM via its annihilation products. In this talk\, I will present current numerical work to characterize the subhalo population with unprecedented detail\, and will discuss on the importance that dark satellites may have for DM searches with present or future gamma-ray observatories. I will then summarize the recent efforts we made to search for them in gamma-ray data\, and to set constraints on the nature of the DM particle using these elusive targets.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-2022-10-27-miguel-sanchez-conde/
LOCATION:ECAP Laboratory\, 00.061\, Nikolaus-Fiebiger-Str. 2\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20221124T130000
DTEND;TZID=Europe/Berlin:20221124T140000
DTSTAMP:20260503T192805
CREATED:20221031T154712Z
LAST-MODIFIED:20221031T154712Z
UID:4069-1669294800-1669298400@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Alba Domi
DESCRIPTION:Quantum Gravity Searches with Neutrino Telescopes\nThe Standard Model of particle physics and General Relativity are expected to merge into a new theory of Quantum Gravity (QG) at energies approaching the Planck scale. However\, none of the proposed QG approaches has been validated to date. In this context\, several signatures of QG effects in accessible energy regimes\, known as “Windows on Quantum Gravity”\, have been postulated. In particular\, quantum decoherence (QD) or QG-induced violation of Lorentz invariance (LIV)\, could cause modifications in neutrino oscillation patterns accessible to observation with neutrino telescopes.  Moreover\, the phenomenon of QD will provide new possibilities to investigate the neutrino nature as a Dirac or Majorana particle\, as well as to trace possible violations of CPT symmetry in neutrino oscillations. Such a phenomenon represents a totally new scenario where to test the real nature of neutrinos. This talk reviews the efforts made in neutrino physics to search for QD and LIV effects and their implications in terms of QG models.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-2022-11-24-alba-domi/
LOCATION:ECAP Laboratory\, 00.061\, Nikolaus-Fiebiger-Str. 2\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20221208T130000
DTEND;TZID=Europe/Berlin:20221208T140000
DTSTAMP:20260503T192805
CREATED:20221128T202913Z
LAST-MODIFIED:20221128T202913Z
UID:4092-1670504400-1670508000@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Jost Migenda
DESCRIPTION:Observing Supernova Neutrinos with Hyper-Kamiokande and SNEWS 2.0\nHyper-Kamiokande is a next generation neutrino and nucleon decay experiment that is expected to start taking data in 2027. In this talk\, I will introduce the experiment and discuss its neutrino astronomy programme\, with a special focus on supernova neutrinos. Towards the end of the talk\, I will also discuss the next-generation SuperNova Early Warning System (SNEWS 2.0)\, which will combine the powers of neutrino physicists and electromagnetic astronomers to optimise multi-messenger observations of the next galactic supernova.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-2022-12-08-jost-migenda/
LOCATION:ECAP Laboratory\, 00.061\, Nikolaus-Fiebiger-Str. 2\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20230112T130000
DTEND;TZID=Europe/Berlin:20230112T140000
DTSTAMP:20260503T192805
CREATED:20230105T153326Z
LAST-MODIFIED:20230105T153326Z
UID:4106-1673528400-1673532000@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Norbert Werner
DESCRIPTION:Monitoring the High-Energy Sky with Small Satellites\nThanks to the recent remarkable progress in the development of nano/micro/small-satellites and new launchers on the market\, space is becoming increasingly more accessible. This provides new opportunities to diversify space astronomy which was hitherto dominated by relatively few large projects. I will describe the current plans for small missions\, including nano-satellite constellations\, to monitor the transient high-energy sky and thus also aid multi-messenger astronomy. I will summarise the results of the precursor missions GRBAlpha and VZLUSAT-2\, which are operating in orbit and detecting transients routinely as well as the development of a UV space telescope on a small-sat dedicated to follow-up observations of kilonovae.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-2023-01-12-norbert-werner/
LOCATION:ECAP Laboratory\, 00.061\, Nikolaus-Fiebiger-Str. 2\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20230119T130000
DTEND;TZID=Europe/Berlin:20230119T140000
DTSTAMP:20260503T192805
CREATED:20230110T125510Z
LAST-MODIFIED:20230110T125510Z
UID:4110-1674133200-1674136800@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Georg Hager\, Johannes Veh
DESCRIPTION:News from NHR@FAU – Fritz\, Alex and Woody\nThe last year has seen quite a few changes in systems and setups at NHR@FAU. Georg Hager\, Head of Training & Support\, will present details about the flagship systems “Fritz” (Top500 rank 151) and “Alex” (Top500 rank 174) and how to get access to them.\nJohannes Veh from the NHR@FAU Systems & Services division will get you up to speed on all these topics regarding Tier3 use of “Woody” so you can make the most out of the hardware.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-2023-01-19-georg-hager-johannes-veh/
LOCATION:ECAP Laboratory\, 00.061\, Nikolaus-Fiebiger-Str. 2\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20230126T130000
DTEND;TZID=Europe/Berlin:20230126T140000
DTSTAMP:20260503T192805
CREATED:20230110T155940Z
LAST-MODIFIED:20230110T155940Z
UID:4113-1674738000-1674741600@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Kathryn Kreckel
DESCRIPTION:Resolving the Baryon Cycle within Nearby Galaxies\nThe buildup of stellar mass through star formation is driven on small (<100pc) scales by physical processes and local conditions\, but regulated across larger (kpc) scales through the baryon cycle. This entails the transformation of gas into stars\, and eventual ejection and recycling of material to form the next generation of stars. The interstellar medium (ISM) provides crucial insights into these processes\, particularly our understanding of radiative and mechanical feedback from young massive stars. The PHANGS (Physics at High Angular resolution in Nearby GalaxieS) collaboration is building a library of uniform\, high-quality\, high-resolution observations of nearby galaxies at the critical “cloud scale” across star-forming galaxy disks by using observations from Hubble\, MUSE/VLT\, JWST\, and ALMA. This provides a characterization of the young star clusters\, the ionized HII regions\, the supernova remnants and the giant molecular clouds\, with which we can explore a comprehensive view of the star-formation process.\nI will present new results from my group\, which has focused on quantifying the impact of these stellar feedback processes on the ISM. I will show how we are leveraging our large statistical samples to establish an evolutionary sequence for HII regions\, linking ionized nebulae with their powering stellar sources. In charting the late-time and large-scale feedback\, I will show how morphological identification of bubbles in molecular and ionized gas\, and now with JWST in the dust\, provides quantitative constraints on different feedback mechanisms. Finally\, I will show how the Local Volume Mapper (LVM) project within SDSS-V will push us towards a 1-10pc view of these physical processes within our own Milky Way and Local Group (LMC/SMC) galaxies.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-2023-01-26-kathryn-kreckel/
LOCATION:ECAP Laboratory\, 00.061\, Nikolaus-Fiebiger-Str. 2\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20230209T130000
DTEND;TZID=Europe/Berlin:20230209T140000
DTSTAMP:20260503T192805
CREATED:20230111T115932Z
LAST-MODIFIED:20230111T115932Z
UID:4116-1675947600-1675951200@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Lauren Rhodes
DESCRIPTION:MWL observations of GRBs\nOver the past five years\, six long gamma-ray bursts (GRBs) have been found to have very high energy (VHE\, >100 GeV) counterparts. As a result of this discovery\, it has become apparent that we have been missing half of the energy produced in the afterglow of long GRBs. The jet properties and environments of VHE GRBs vary hugely in a similar manner to that seen in the ‘regular’ long GRB population with evidence of bright reverse shock emission and multiple jet components.\nIn this talk\, I will present a brief overview of what we have learnt from the synchrotron afterglows of five VHE GRBs (including results from Rhodes et al. 2020\, 2022; Giarratana\, Rhodes et al. 2022 and Bright\, Rhodes et al. submitted); introduce the possibilities for studying VHE GRBs as a population of sources; and how the GRB community can work together to better understand these events.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-2023-02-09-lauren-rhodes/
LOCATION:ECAP Laboratory\, 00.061\, Nikolaus-Fiebiger-Str. 2\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20230615T130000
DTEND;TZID=Europe/Berlin:20230615T140000
DTSTAMP:20260503T192805
CREATED:20230612T182534Z
LAST-MODIFIED:20230612T182534Z
UID:4219-1686834000-1686837600@ecap.nat.fau.de
SUMMARY:ECAP Seminar: James Matthews
DESCRIPTION:Ultrahigh energy cosmic rays: an origin story\nUnderstanding how ultrahigh energy cosmic rays (UHECRs) reach energies in excess of 1e20 eV stretches particle acceleration physics to its very limits. In this talk\, I will discuss how such energies can be reached\, using general arguments that can often be derived on the back of an envelope. I will review possible particle acceleration mechanisms\, with special attention paid to shock acceleration. Informed by the arguments derived in the talk\, and with insights from Galactic CR acceleration in supernova remnants\, I will then discuss which classes of astrophysical sources might be UHECR sources\, including my own (biased) perspective; generally\, I favour radio galaxies\, GRB afterglows and other sources which are not too compact and dissipate prodigious amounts of energy on large scales. Aided by hydrodynamic simulations\, I will show that shocks in the backflows in radio galaxies are good accelerators of UHECRs\, then present simulations in which the jet flickers and explore the impact on particle acceleration. I will explore a scenario in which a significant fraction of UHECRs originate from local radio galaxies like Centaurus A and Fornax A\, arguing that they can explain the observed UHECR anisotropies. Finally\, I will highlight the importance of variability in these potential UHECR sources\, and explore the intiguing possibility that the UHECR arrival directions are partly a result of “UHECR echoes” or “reverberation” from magnetic structures in the local Universe.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-2023-06-15-james-matthews/
LOCATION:ECAP Laboratory\, 00.061\, Nikolaus-Fiebiger-Str. 2\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20230720T124500
DTEND;TZID=Europe/Berlin:20230720T134500
DTSTAMP:20260503T192805
CREATED:20230403T195959Z
LAST-MODIFIED:20230922T175223Z
UID:4167-1689857100-1689860700@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Benedetta Ciardi
DESCRIPTION:Modeling and Observations of Cosmic Reionization\nIn this talk I will introduce the topic of intergalactic medium reionization\, its importance in the context of structure formation and how it is modeled from a theoretical point of view. I will then discuss how observations of the 21cm line from neutral hydrogen can be used to constrain the reionization process and present the latest LOFAR data in this respect.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-2023-07-20-benedetta-ciardi/
LOCATION:ECAP Laboratory\, 00.061\, Nikolaus-Fiebiger-Str. 2\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20231019T130000
DTEND;TZID=Europe/Berlin:20231019T140000
DTSTAMP:20260503T192805
CREATED:20231017T124139Z
LAST-MODIFIED:20231017T124245Z
UID:4798-1697720400-1697724000@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Christoph Weniger
DESCRIPTION:Low-cost high-fidelity data analysis with simulation-based inference\nThe increasing volume and sophistication of astrophysical and cosmological data challenge traditional analysis methods\, which often struggle with high-dimensional models and complex observations as seen for instance in gravitational waves\, supernova cosmology\, and gamma-ray data. Highlighting these limitations\, this talk explores how deep learning and simulation-based inference can offer scalable and effective solutions. Despite promising advances\, there are substantial challenges to fully realize the potential of these technologies. This talk will conclude with the crucial next steps in incorporating these techniques more effectively into astrophysical and cosmological data analysis.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-2023-10-19-christoph-weniger/
LOCATION:ECAP Laboratory\, 00.061\, Nikolaus-Fiebiger-Str. 2\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
END:VCALENDAR