GRB 060218/SN 2006aj 冲击破裂现象
天体物理学
2010-03-19 v3
摘要
尽管长型伽玛射线暴（GRB）与超新星（SN）之间的关联已被确立，但迄今为止尚无对超新星爆发初始阶段及其与GRB密切关联的观测。特别是，我们并不了解GRB喷流如何从恒星表面喷出，或GRB祊星如何爆发。本文报告我们对近距离GRB060218及其与SN2006aj关联的观测。除了经典的非热辐射外，GRB060218的X射线光谱中还显示出热成分，其随时间 cooling 并向光学/紫外波段位移。我们将这些特征解释为：由轻度相对论壳体在祊星周围致密风中驱动的冲击波破裂所致。我们的观测使我们首次看到一颗正在爆炸的超新星，直接观测到冲击破裂，并提供了强有力的证据表明GRB祊星为温暖星（Wolf-Rayet star）。
引用
@article{arxiv.astro-ph/0603279,
title = {The shock break-out of GRB 060218/SN 2006aj},
author = {S. Campana and V. Mangano and A. J. Blustin and P. Brown and D. N. Burrows and G. Chincarini and J. R. Cummings and G. Cusumano and M. Della Valle and D. Malesani and P. Meszaros and J. A. Nousek and M. Page and T. Sakamoto and E. Waxman and B. Zhang and Z. G. Dai and N. Gehrels and S. Immler and F. E. Marshall and K. O. Mason and A. Moretti and P. T. O'Brien and J. P. Osborne and K. L. Page and P. Romano and P. W. A. Roming and G. Tagliaferri and L. R. Cominsky and P. Giommi and O. Godet and J. A. Kennea and H. Krimm and L. Angelini and S. D. Barthelmy and P. T. Boyd and D. M. Palmer and A. A. Wells and N. E. White},
journal= {arXiv preprint arXiv:astro-ph/0603279},
year = {2010}
}
备注
12 pages, 3 color figures (final version). Accepted for publication in Nature