超新星诞生时的一次极亮 X 射线爆发
天体物理学
2010-05-12 v2
摘要
大质量恒星在其短暂的生命终结时会发生壮观的爆炸，即超新星，它们合成新元素并驱动星系演化。历史上，超新星主要是通过其延迟的光学光线被发现的，这阻碍了在爆炸后最初时刻（数小时至数天）的观测。因此，某些超新星的前身星及其导致剧烈毁灭的事件仍然是激烈争论的焦点。在此，我们报告了一次在爆炸时刻偶然发现的超新星，其特征是一次极亮的 X 射线爆发。我们将此次爆发归因于超新星激波从前身星 breakout，并表明推断出的此类事件发生率与所有核坍缩超新星的发生率一致。我们预测，未来的广域 X 射线巡天将每年捕捉到数百次正在爆炸的超新星，从而能够实现关键的微中子和引力波探测，这可能最终揭示爆炸机制。
引用
@article{arxiv.0802.1712,
title = {An extremely luminous X-ray outburst at the birth of a supernova},
author = {A. M. Soderberg and E. Berger and K. L. Page and P. Schady and J. Parrent and D. Pooley and X. -Y. Wang and E. O. Ofek and A. Cucchiara and A. Rau and E. Waxman and J. D. Simon and D. C. -J. Bock and P. A. Milne and M. J. Page and J. C. Barentine and S. D. Barthelmy and A. P. Beardmore and M. F. Bietenholz and P. Brown and A. Burrows and D. N. Burrows and G. Byrngelson and S. B. Cenko and P. Chandra and J. R. Cummings and D. B. Fox and A. Gal-Yam and N. Gehrels and S. Immler and M. Kasliwal and A. K. H. Kong and H. A. Krimm and S. R. Kulkarni and T. J. Maccarone and P. Meszaros and E. Nakar and P. T. O'Brien and R. A. Overzier and M. de Pasquale and J. Racusin and N. Rea and D. G. York},
journal= {arXiv preprint arXiv:0802.1712},
year = {2010}
}
备注
Article to appear in the May 22 issue of Nature. Final version: 21 pages, 5 figures. High resolution figures and Supplementary Information available at http://www.astro.princeton.edu/~alicia/SN2008D/ Note: the results presented in this paper are under embargo by Nature until the publication date