July 29, 2015 to August 6, 2015
World Forum
Europe/Amsterdam timezone

Search for new supernova remnant shells in the Galactic plane with H.E.S.S.

Jul 30, 2015, 12:15 PM
15m
Amazon (World Forum)

Amazon

World Forum

Churchillplein 10 2517 JW Den Haag The Netherlands
Oral contribution GA-EX Parallel GA02 GAL

Speaker

Gerd Puehlhofer (IAAT)

Description

Amongst the population of TeV gamma-ray sources detected with the High Energy Stereoscopic System (H.E.S.S.) in the Galactic plane, clearly identified supernova remnant (SNR) shells constitute a small but precious source class. TeV-selected SNRs are prime candidates for efficient cosmic-ray acceleration. In this work, we present new SNR candidates that have been identified in the entire H.E.S.S.-I data of the Galactic plane recorded over the past ten years. Identification with known SNR shells from other wavebands are rare but were successful at least in one case. In a few other cases, TeV-only shell candidates are a major challenge for identification as SNR objects due to their lack of detected non-thermal emission in lower frequency bands. We will discuss how these objects may present an important link between young and evolved SNRs, since their shell emission may be dominated by hadronic processes.
Collaboration H.E.S.S.
Registration number following "ICRC2015-I/" 1212

Primary author

Co-authors

Arache Djannati-Atai (Laboratoire de Physique Corpusculaire) Axel Donath (Max Planck Institute for Nuclear Physics, Heidelberg) Christoph Deil (MPIK Heidelberg) Daniel Gottschall (Universität Tübingen) Francois Brun (CEA Saclay) Helene Laffon (CENBG) Jacco Vink (University of Amsterdam / GRAPPA) Louise Oakes (HU Berlin) Dr Manami Sasaki (IAAT) Matthieu Renaud (LUPM) Peter Eger (MPIK Heidelberg) Regis Terrier (C) Ryan Chaves (Montpellier University) Dr Vincent Marandon (MPIK Heidelberg)

Presentation materials