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Astrophysics > High Energy Astrophysical Phenomena

arXiv:2108.10028 (astro-ph)
[Submitted on 23 Aug 2021 (v1), last revised 24 Aug 2021 (this version, v2)]

Title:Search for TeV emission from the Fermi Bubbles at low Galactic latitudes with H.E.S.S. inner Galaxy survey observations

Authors:E. Moulin, A. Montanari, D. Malyshev, Dm. Malyshev (for the H.E.S.S. collaboration)
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Abstract:The Fermi Bubbles were discovered about a decade ago in the {\it Fermi}-LAT data as a double-lobe structure extending up to 55 deg. in Galactic latitudes above and below the Galactic Center. At the moment their origin is still unknown. The H.E.S.S. collaboration is currently performing the first ever survey in TeV gamma rays of the Milky Way inner region: the Inner Galaxy Survey. This survey is intended to achieve the best sensitivity to faint and diffuse emissions in a region of several degrees around the Galactic Centre. It provides an unprecedented sensitivity to dark matter signals, new diffuse emissions, and TeV outflows from the Galactic Centre. Understanding the properties of the Fermi Bubbles at low Galactic latitudes will provide key insights into their origin. We search for TeV emission at the base of the Fermi Bubbles using low-latitude spatial templates. The first results obtained with the 2014-2020 H.E.S.S. observations will be reported.
Comments: 8 pages, 3 figures, Proceedings of the 37th International Cosmic Ray Conference (ICRC2021)
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE)
Cite as: arXiv:2108.10028 [astro-ph.HE]
  (or arXiv:2108.10028v2 [astro-ph.HE] for this version)
  https://doi.org/10.48550/arXiv.2108.10028
Journal reference: PoS(ICRC2021)791

Submission history

From: Emmanuel Moulin [view email]
[v1] Mon, 23 Aug 2021 09:37:27 UTC (923 KB)
[v2] Tue, 24 Aug 2021 11:02:25 UTC (923 KB)
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