BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Erlangen Centre for Astroparticle Physics - ECPv6.2.3.2//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:Erlangen Centre for Astroparticle Physics
X-ORIGINAL-URL:https://ecap.nat.fau.de
X-WR-CALDESC:Events for Erlangen Centre for Astroparticle Physics
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:Europe/Berlin
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20240331T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20241027T010000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20240606T130000
DTEND;TZID=Europe/Berlin:20240606T140000
DTSTAMP:20260419T144237
CREATED:20240502T160115Z
LAST-MODIFIED:20240502T160115Z
UID:5171-1717678800-1717682400@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Ekaterina Makarenko
DESCRIPTION:Thermal X-ray emission from supernova remnants in 3D (M)HD simulations\nEvery supernova (SN) injects around 10^51 ergs into the interstellar medium (ISM)\, shaping the ISM’s chemical\, thermal\, and dynamic evolution. Around 70% of the injected energy is subsequently lost by radiative cooling. However\, the fate of the emitted cooling photons is usually neglected in simulations as the surrounding ISM is treated as optically thin. This makes high-resolution 3D simulations quite unphysical. The growing ability of X-ray spectroscopy allows observations of SN remnants (SNRs) to define pixel-by-pixel based parameters (such as plasma temperature\, ionisation state\, and abundance of different elements). We therefore urgently need more realistic simulations of SNRs. \nIn this talk\, I will present state-of-the-art (magneto-)hydrodynamic simulations of SN explosions using the FLASH code\, which include radiative cooling from the SN event. Radiative cooling is calculated on-the-fly and is fully consistent with the code’s radiative transfer\, physics\, and chemistry modules. Therefore\, we created synthetic maps of the simulated SNR in several X-ray energy bands (e.g. Chandra energy bands in the range 0.1-10 keV) as well as for selected lines. These synthetic X-ray maps provide unique information about the physics of shock/cloud interactions\, the general morphology of the remnants\, as well as a better comparison (and prediction) for SNR observations.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-ekaterina-makarenko-06-06-2024/
LOCATION:ECAP Laboratory\, 00.061\, Nikolaus-Fiebiger-Str. 2\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20240607T130000
DTEND;TZID=Europe/Berlin:20240607T140000
DTSTAMP:20260419T144237
CREATED:20240528T140117Z
LAST-MODIFIED:20240528T140117Z
UID:5204-1717765200-1717768800@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Philipp Frank
DESCRIPTION:Signal reconstruction for fields using probabilistic forward modeling\nMany inference tasks in observational astronomy take the form of reconstruction problems where the underlying quantities of interest are fields (functions of space\, time and/or frequency) that have to be recovered from noisy and incomplete observational data. These problems are in general ill-posed\, as many different field configurations may be consistent with the observed data\, and therefore their solutions are inherently of probabilistic nature. Forward modeling\, that is combining an accurate description of the observing instrument’s response to a field configuration occurring in nature with the rules of probability & information theory provides a robust and scalable framework to solve such problems. I will give a brief overview on the involved theoretical concepts and numerical techniques employed to do so in practice\, and show a selection of applications to real-world astrophysical data-analysis problems ranging from results in the radio- up to the gamma-ray-regime.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-2024-06-07-philipp-frank/
LOCATION:ECAP Laboratory\, 00.061\, Nikolaus-Fiebiger-Str. 2\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20240627T130000
DTEND;TZID=Europe/Berlin:20240627T140000
DTSTAMP:20260419T144237
CREATED:20240502T111528Z
LAST-MODIFIED:20240626T170421Z
UID:5166-1719493200-1719496800@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Martin Mayer
DESCRIPTION:Rotation-powered pulsars and their nebulae – the eROSITA view\nSRG/eROSITA is a soft X-ray (0.2 – 10 keV) telescope which has carried out the deepest X-ray all-sky survey to date. In this talk\, I will present how the eROSITA data can be used to study rotation-powered pulsars and their pulsar wind nebulae\, exemplified by two projects: \nFirstly\, the surveying power of eROSITA has allowed us to carry out a systematic search for new high-energy pulsars through a cross-match with gamma-ray sources detected by Fermi-LAT. The resulting candidate list is expected to yield detections of several tens of new pulsars\, and can ideally be followed up by looking for signatures of pulsed radio emission\, or orbitally modulated optical emission from a binary companion\, at the candidate positions. \nSecondly\, eROSITA’s sensitivity has enabled us to study the X-ray synchrotron emission of Vela X\, the wind nebula of the Vela pulsar\, at unprecedented detail. This study led to the discovery of an extremely extended nonthermally emitting component\, reaching radii up to 15 pc from the Vela pulsar. Its large size can possibly be explained through particle transport by diffusion\, akin to the halos discovered around older pulsars in gamma-rays.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-2024-06-27-martin-mayer/
LOCATION:ECAP\, room 307\, Erwin-Rommel-Str 1\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
END:VCALENDAR