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The exceptionally powerful TeV gamma-ray emitters in the Large Magellanic Cloud
Univ Hamburg Inst Expt Phys, D-22761 Hamburg, Germany.
Max Planck Inst Kernphys, D-69029 Heidelberg, Germany ; Dublin Inst Adv Studies, Dublin 2, Ireland ; Natl Acad Sci Republ Armenia, Yerevan 0019, Armenia .
Max Planck Inst Kernphys, D-69029 Heidelberg, Germany.
Natl Acad Sci Republ Armenia, Yerevan 0019, Armenia ; Yerevan Phys Inst, Yerevan 375036, Armenia.
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2015 (English)In: Science, ISSN 0036-8075, E-ISSN 1095-9203, Vol. 347, no 6220, 406-412 p.Article in journal (Refereed) Published
Abstract [en]

The Large Magellanic Cloud, a satellite galaxy of the Milky Way, has been observed with the High Energy Stereoscopic System (H.E.S.S.) above an energy of 100 billion electron volts for a deep exposure of 210 hours. Three sources of different types were detected: the pulsar wind nebula of the most energetic pulsar known, N 157B; the radio-loud supernova remnant N 132D; and the largest nonthermal x-ray shell, the superbubble 30 Dor C. The unique object SN 1987A is, unexpectedly, not detected, which constrains the theoretical framework of particle acceleration in very young supernova remnants. These detections reveal the most energetic tip of a g-ray source population in an external galaxy and provide via 30 Dor C the unambiguous detection of g-ray emission from a superbubble.

Place, publisher, year, edition, pages
2015. Vol. 347, no 6220, 406-412 p.
National Category
Astronomy, Astrophysics and Cosmology
Research subject
Natural Science, Physics
Identifiers
URN: urn:nbn:se:lnu:diva-40898DOI: 10.1126/science.1261313ISI: 000348225800039OAI: oai:DiVA.org:lnu-40898DiVA: diva2:795898
Available from: 2015-03-17 Created: 2015-03-17 Last updated: 2017-03-27Bibliographically approved

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Becherini, YvonnePunch, Michael
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