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

H.E.S.S. Observations of the Large Magellanic Cloud

Aug 4, 2015, 2:45 PM
15m
Amazon (World Forum)

Amazon

World Forum

Churchillplein 10 2517 JW Den Haag The Netherlands
Oral contribution GA-EX Parallel GA16 H.E.S.S.

Speaker

Nukri Komin (Wits University)

Description

The Large Magellanic Cloud (LMC) is an irregular satellite galaxy of the Milky Way, which has been observed extensively at Very-High-Energy (VHE) gamma-rays with the H.E.S.S. telescopes, obtaining a deep exposure of 210 hours. In this talk we will present the results of this campaign. Besides the already known PWN N 157B, these observations establish significant VHE gamma-ray emission from the super-bubble 30 Dor C and show evidence for emission from the supernova remnant N 132D. It is the first unambiguous detection of gamma rays from a super-bubble and for the first time individual cosmic-ray accelerators are identified in an external galaxy. Contrary to theoretical expectations, VHE gamma-ray emission is not detected from SN 1987A. We will discuss these three objects, representing the high-energy tip of the VHE gamma-ray source population in the LMC, as possible cosmic-ray accelerators, and compare them with similar systems in our Galaxy. Further discoveries can be expected with more sensitive surveys of the LMC in gamma-rays, for instance with the Cherenkov Telescope Array.
Registration number following "ICRC2015-I/" 870
Collaboration H.E.S.S.

Primary authors

Chia-Chun Lu (MPIK) Dr Jacco Vink (Anton Pannekoek Institute/GRAPPA) Matthieu Renaud (LUPM) Dr Michael Mayer (Humboldt University, Berlin) Nukri Komin (Wits University) Stefan Ohm (DESY)

Presentation materials

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