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arXiv · 1201.0639

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

Nu. Komin·A. Djannati-Ataï·Y. Gallant·V. Marandon·C. C. Lu·S. Ohm·E. de Oña Wilhelmi
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Abstract

The Large Magellanic Cloud (LMC) is a satellite galaxy of the Milky Way at a distance of approximately 48 kpc. Despite its distance it harbours several interesting targets for TeV gamma-ray observations. The composite supernova remnant N 157B/PSR J05367-6910 was discovered by H.E.S.S. being an emitter of very high energy (VHE) gamma-rays. It is the most distant pulsar wind nebula ever detected in VHE gamma-rays. Another very exciting target is SN 1987A, the remnant of the most recent supernova explosion that occurred in the neighbourhood of the Milky Way. Models for Cosmic Ray acceleration in this remnant predict gamma-ray emission at a level detectable by H.E.S.S. but this has not been detected so far. Fermi/LAT discovered diffuse high energy (HE) gamma-ray emission from the general direction of the massive star forming region 30 Doradus but no clear evidence for emission from either N 157B or SN 1987A has been published. The part of the LMC containing these objects has been observed regularly with the H.E.S.S. telescopes since 2003. With deep observations carried out in 2010 a very good exposure of this part of the sky has been obtained. The current status of the H.E.S.S. LMC observations is reported along with new results on N 157B and SN 1987A.

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Nu. Komin, A. Djannati-Ataï, Y. Gallant, V. Marandon, C. C. Lu, S. Ohm, E. de Oña Wilhelmi. 2012-01-03. H.E.S.S. observations of the Large Magellanic Cloud. https://arxiv.org/abs/1201.0639

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