与超长伽马射线暴相关的一颗极高光度磁星驱动超新星
高能天体物理现象
2015-09-11 v1
摘要
最近有人提出一类超长持续时间(>10,000 s)的伽马射线暴。它们可能起源于半径比正常长伽马射线暴大得多的恒星爆发，或恒星的潮汐瓦解。目前尚未有清晰超新星与超长伽马射线暴相关联。本文中我们报告一颗超新星(2011kl)与红移z=0.677的超长持续时间暴111209A相关。该超新星比与长伽马射线暴相关的Ic型超新星光度高3倍以上，且其光谱明显不同。其连续谱斜率类似于超亮超新星，但向静止帧紫外延伸更远，意味着低金属含量。其光变曲线演化比超亮超新星快得多。高光度与低金属线不透明度的组合无法用典型Ic型超新星调和，但可由一个模型重现：其中额外能量由强磁化中子星（磁星）注入，这也被提出作为超亮超新星的解释。
引用
@article{arxiv.1509.03279,
title = {A very luminous magnetar-powered supernova associated with an ultra-long gamma-ray burst},
author = {Jochen Greiner and Paolo A. Mazzali and D. Alexander Kann and Thomas Krühler and Elena Pian and Simon Prentice and Felipe Olivares E. and Andrea Rossi and Sylvio Klose and Stefan Taubenberger and Fabian Knust and Paulo M. J. Afonso and Chris Ashall and Jan Bolmer and Corentin Delvaux and Roland Diehl and Jonathan Elliott and Robert Filgas and Johan P. U. Fynbo and John F. Graham and Ana Nicuesa Guelbenzu and Shiho Kobayashi and Giorgos Leloudas and Sandra Savaglio and Patricia Schady and Sebastian Schmid and Tassilo Schweyer and Vladimir Sudilovsky and Mohit Tanga and Adria C. Updike and Hendrik van Eerten and Karla Varela},
journal= {arXiv preprint arXiv:1509.03279},
year = {2015}
}
备注
Table 1 only in printed version