The exceptionally powerful TeV gamma-ray emitters in the Large Magellanic CloudShow others and affiliations
2015 (English)In: Science, ISSN 0036-8075, E-ISSN 1095-9203, Vol. 347, no 6220, p. 406-412Article 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, p. 406-412
National Category
Astronomy, Astrophysics and Cosmology
Research subject
Physics, Astroparticle Physics
Identifiers
URN: urn:nbn:se:lnu:diva-40898DOI: 10.1126/science.1261313ISI: 000348225800039Scopus ID: 2-s2.0-84961291657OAI: oai:DiVA.org:lnu-40898DiVA, id: diva2:795898
2015-03-172015-03-172019-02-14Bibliographically approved