13-18 December 2015
International Conference Centre Geneva
Europe/Zurich timezone

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

14 Dec 2015, 14:00
20m
Level 0, Room 23 (International Conference Centre Geneva)

Level 0, Room 23

International Conference Centre Geneva

17 Rue de Varembé, 1211 Geneva

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.
Collaboration H.E.S.S. Collaboration

Primary authors

Chia-Chun Lu (MPIK) Felix Aharonian (MPIK Heidelberg, DIAS Dublin) Jacco Vink (University of Amsterdam) Matthieu Renaud (LUPM) Michael Mayer (Humboldt-Universität zu Berlin) Nukri Komin (Wits University) Stefan Ohm (DESY)

Presentation Materials