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ECAP Seminar

Upcoming seminars:

May 2, 13:00 — 14:00

Information field theory – turning data into images

Charting 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.

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June 6, 13:00 — 14:00

HyperKamiokande: a next generation long baseline neutrino experiment in Japan

The 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.

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June 13, 13:00 — 14:00

Radio detection of ultra-high energy neutrinos

High 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.

Before 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.

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Timetable Summer Term 2019

Date Time Speaker Institute Topic
May 2 13:00 Thorsten Enßlin MPIA, Garching Information field theory – turning data into images
Jun 6 13:00 Lee Thompson University of Sheffield HyperKamiokande: a next generation long baseline neutrino experiment in Japan
Jun 13 13:00 Christian Glaser UC Irvine Radio detection of ultra-high energy neutrinos
Jun 27 13:00 Andreas Haungs KIT, Karlsruhe Galactic Cosmic Rays
Jul 4 13:00 Iris Gebauer KIT, Karlsruhe Indirect dark matter searches and cosmic ray transport
Jul 11 13:00 Sara Buson Universität Würzburg The flaring gamma-ray sky
Jul 18 13:00 Siegfried Glenzer Stanford University Laboratory Astrophysics

Timetable Winter Term 2018/19

Date Time Speaker Institute Topic
Nov 22 13:00 Anna Franckowiak DESY, Zeuthen Searching for electromagnetic counterparts to high-energy neutrinos
Dec 13 13:00 Thomas Heid ECAP Characterizing the diffuse neutrino flux with the future KM3NeT/ARCA detector (PhD defense)
Dec 20 13:00 Florian Kühnel KTH Stockholm Primordial Black Holes as Dark Matter
Jan 10 13:00 Klaus Helbing Universität Wuppertal Probing Particle Physics with IceCube
Jan 31 13:00 Joachim Puls LMU München On the difficulties to derive reliable CNO abundances in hot massive stars
Feb 7 13:00 Marijke Haverkorn Radboud University Nijmegen The Magnetic Field of the Milky Way
Feb 14 13:00 Takaaki Tanaka Kyoto University Recent Results from X-ray Studies of Supernova Remnants

Timetable Summer Term 2018

Date Time Speaker Institute Topic
Apr 25 13:00 Christoph Weniger GRAPPA, Amsterdam Dark matter searches with gamma rays
May 2 13:00 Kay Graf & Stefan Funk ECAP News from the ECAP laboratory
May 16 13:00 Thomas Janka MPIA Garching 3D core-collapse supernova modeling and applications to Cas A and other supernova remnants
May 23 12:30 Henning Gast RWTH Aachen Latest results from the AMS experiment on the International Space Station
May 30 13:00 Oliver Hupe PTB Braunschweig Radiation Protection Dosimetry: Phantoms and measuring quantities
Jun 6 13:00 Michael Schulreich TU Berlin Reconstructing the origin of the Local Bubble and Loop I via radioisotopic signatures on Earth
Jun 13 13:00 Adrian Zink ECAP Updates of the ECAP desktop computing system
Jun 20 13:00 Frank Haberl MPE Garching The XMM-Newton surveys of the Magellanic Clouds
Jun 27 13:00 Bosco Oruru Makerere University, Uganda Status of Astronomy in East Africa: Focus on Uganda
Jul 4 13:00 Gisela Anton / Joern Wilms ECAP Status report on IceCube-Gen2 / eROSITA
Jul 11 14:00 Andrea Santangelo IAA Tübingen Fundamental Physics studies with X-ray spectral-timing-polarimetry and the eXTP mission

Timetable Winter Term 2017/18

Date Time Speaker Institute Topic
Oct 18 13:00 Anatoli Fedynitch DESY, Zeuthen State-of-the-art atmospheric lepton flux Tools
Nov 22 13:00 Stefan Jordan ZAH Heidelberg The Gaia Mission – Overview, First Results, and future prospects
Nov 29 13:00 Chris Belczynski Copernicus Center Warsaw The Astrophysics of BH-BH/NS-NS Mergers with LIGO/Virgo
Dec 13 13:00 Jochen Greiner MPE Garching The gravitational wave detection of a binary neutron star merger: expectations, surprises, and prospects
Dec 20 13:00 Marek Kowalski Humboldt-University Berlin A new era in multi-messenger astronomy
Jan 24 13:00 Arne Rau MPE Garching Overview of Athena and the Wide Field Imager
Jan 31 13:00 Christian Motch Observatoire Astronomique Strasbourg SVOM – Space-based multiband astronomical Variable Objects Monitor
Feb 1 15:00 Thorsten Lisker ZAH Heidelberg Survival in galaxy clusters: from ultra-diffuse to ultra-compact objects

Timetable Summer Term 2017

Date Time Speaker Institute Topic
April 26 13:00 Abigail Stevens University of Amsterdam Comparing origins of low-frequency quasi-periodic oscillations with spectral timing
May 10 13:00 Stefan Geißelsöder ECAP Pattern recognition and deep learning
May 17 13:00 Kathrin Valerius Karlsruhe Institute of Technology Status and prospects of direct neutrino mass searches: News from KATRIN and outlook on future projects
May 23 11:00 Jakob van Santen DESY, Zeuthen What’s new in IceCube?
May 24 13:00 Andrii Neronov EPFL, Lausanne Galactic and extragalactic contributions to the astrophysical neutrino flux
May 31 13:00 Francesco Longo Trieste, INFN GRB observations at High and Very High Energy
June 7 13:00 Philipp Mertsch RWTH Aachen Cosmic ray anisotropies: unravelling sources and transport
June 14 13:00 Alexander Fieguth Universität Münster XENON1T & the challenge of direct dark matter detection
June 21 13:00 Harm Schoorlemmer MPI-K Heidelberg Observing the TeV gamma-ray sky with the High-Altitude Water Cherenkov Observatory
June 28 13:00 Livia Ludhova Forschungszentrum Jülich JUNO: the first multi-kton liquid scintillator based neutrino detector
July 6 10:00 Francois Brun Université de Bordeaux / CNRS The H.E.S.S. Galactic Plane Survey
July 12 13:00 Laura Spitler MPIfR Bonn Fast radio bursts
July 19 12:00 ECAP Sommerfest
July 26 13:00 Stefan Funk / Uli Katz ECAP Status report on CTA / KM3NeT

Timetable Winter Term 2016/17

Date Time Speaker Institute Topic
Oct. 26 13:00 Julian Rautenberg Universität Wuppertal Radio detection of cosmic-ray air showers
Nov. 23 13:00 Timo Karg DESY, Zeuthen IceCube: future vision and R&D
Nov. 30 13:00 Axel Schwoie AIP Potsdam The Polars (still crazy after all those years)
Dec. 07 13:00 Daniel Kümpel RWTH Aachen Hunting for ultra-high energy photons
Dec. 14 13:00 Stefan Klepser DESY, Zeuthen The Population of Galactic TeV Plerions and a Major Electronics Upgrade for H.E.S.S.
Dec. 21 13:00 Walter Assmann TU München The sound of protons – ionoacoustic range monitoring in proton therapy
Jan. 11 13:00 Michael Wurm JGU Mainz Ten years of Borexino: from solar to sterile neutrinos
Jan. 25 13:00 Christoph Pfrommer Heidelberg Institute for Theoretical Studies Cosmic ray feedback in galaxies and AGN
Feb. 01 13:00 Thomas Reiprich Argelander Institut Bonn Galaxy Clusters