Study of TeV shell supernova remnants at gamma-ray energies
作者： F. Acero , M. Lemoine-Goumard , M. Renaud , J. Ballet , J. W. Hewitt
DOI: 10.1051/0004-6361/201525932
关键词: Astronomy 、 Supernova 、 Fermi Gamma-ray Space Telescope 、 Physics 、 Vela 、 Astrophysics 、 Gamma ray 、 Cherenkov radiation 、 Photon 、 Population 、 Luminosity
摘要: The breakthrough developments of Cherenkov telescopes in the last decade have led to angular resolution 0.1{\deg} and an unprecedented sensitivity. This has allowed current generation discover a population supernova remnants (SNRs) radiating very-high-energy (VHE, E>100 GeV) gamma-rays. A number those VHE SNRs exhibit shell-type morphology spatially coincident with shock front SNR. members this shell SNR club are RX J1713.7-3946, Vela Jr, RCW 86, SN 1006, HESS J1731-347. latter two objects been poorly studied high-energy (HE, 0.1 5 sigma. With Fermi analysis, we now complete view HE gamma-ray emission TeV SNRs. All five sources hard photon index (<1.8) suggesting common scenario where bulk is produced by accelerated electrons from radio gamma-rays through synchrotron inverse Compton processes. In addition when correcting for distance, all show surprisingly similar luminosity supporting idea mechanism. While likely be leptonic dominated, does not rule out efficient hadron acceleration
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