发现蟹状星云的强烈伽马射线耀发
高能天体物理现象
2011-01-13 v1
摘要
著名的蟹状星云位于SN1054超新星遗迹的中心。它由一颗自转驱动脉冲星组成，该脉冲星通过相对论性粒子风与周围的星云相互作用。源自脉冲星和星云的发射被认为是基本稳定的。在此，我们报告AGILE卫星在2010年9月和2007年10月观测到的强烈伽马射线（100 MeV-10 GeV）耀发。在这两种情况下，非脉冲通量与非耀发通量相比增加了3倍。耀发光度和短时标表明其起源靠近脉冲星，我们讨论了钱德拉X射线天文台和HST对星云的光学后续观测。我们的观测对星云发射的标准模型提出了挑战，并要求在约1天的时标内通过激波驱动的等离子体波湍流进行幂律加速。
关键词
引用
@article{arxiv.1101.2311,
title = {Discovery of Powerful Gamma-Ray Flares from the Crab Nebula},
author = {M. Tavani and A. Bulgarelli and V. Vittorini and A. Pellizzoni and E. Striani and P. Caraveo and M. C. Weisskopf and A. Tennant and G. Pucella and A. Trois and E. Costa and Y. Evangelista and C. Pittori and F. Verrecchia and E. Del Monte and R. Campana and M. Pilia and A. De Luca and I. Donnarumma and D. Horns and C. Ferrigno and C. O. Heinke and M. Trifoglio and F. Gianotti and S. Vercellone and A. Argan and G. Barbiellini and P. W. Cattaneo and A. W. Chen and T. Contessi and F. D'Ammando and G. DeParis and G. Di Cocco and G. Di Persio and M. Feroci and A. Ferrari and M. Galli and A. Giuliani and M. Giusti and C. Labanti and I. Lapshov and F. Lazzarotto and P. Lipari and F. Longo and F. Fuschino and M. Marisaldi and S. Mereghetti and E. Morelli and E. Moretti and A. Morselli and L. Pacciani and F. Perotti and G. Piano and P. Picozza and M. Prest and M. Rapisarda and A. Rappoldi and A. Rubini and S. Sabatini and P. Soffitta and E. Vallazza and A. Zambra and D. Zanello and F. Lucarelli and P. Santolamazza and P. Giommi and L. Salotti and G. F. Bignami},
journal= {arXiv preprint arXiv:1101.2311},
year = {2011}
}
备注
23 pages (including Supporting On-line Material), 8 figures, 1 table. Version published in Science Express on January 6, 2011 (available at http://www.sciencemag.org/content/early/2011/01/05/science.1200083)