Ic型超新星PTF 10vgv的致密沃尔夫-拉叶星前身星证据
宇宙学与河外天体物理
2015-05-30 v2
摘要
我们报告了由帕洛马瞬变工厂使用帕洛马48英寸望远镜（P48）发现的Ic型超新星PTF 10vgv。P48对PTF 10vgv天区的R波段观测探测了该超新星从极早期阶段（R波段极大前约两周）的辐射，并设定了其发现前一周内的流量上限。我们灵敏的上限和早期探测约束了该事件的激波突破后光度。通过与数值（解析）模型比较，我们推导出前身星半径的上限为R \lesssim 4.5 Rsun（R \lesssim 1 Rsun），这直接表明其是一颗致密的沃尔夫-拉叶星。对SN 1994I的历史观测进行类似分析，得出该超新星前身星半径的上限为R \lesssim 1/4 Rsun。
引用
@article{arxiv.1110.5618,
title = {Evidence for a compact Wolf-Rayet progenitor for the Type Ic supernova PTF 10vgv},
author = {A. Corsi and E. O. Ofek and A. Gal-Yam and D. A. Frail and D. Poznanski and P. A. Mazzali and S. R. Kulkarni and M. M. Kasliwal and I. Arcavi and S. Ben-Ami and S. B. Cenko and A. V. Filippenko and D. B. Fox and A. Horesh and J. L. Howell and I. K. W. Kleiser and E. Nakar and I. Rabinak and R. Sari and J. M. Silverman and D. Xu and J. S. Bloom and N. M. Law and P. E. Nugent and R. M. Quimby},
journal= {arXiv preprint arXiv:1110.5618},
year = {2015}
}
备注
16 pages; 3 figures; accepted for publication in ApJ Letters; minor changes to match published version (results unchanged)