短型伽玛射线暴GRB 050709的发现
天体物理学
2011-07-19 v1
摘要
伽玛射线暴（GRBs）分为两类：短硬型和长软型暴。后者已知具有X射线和光学尾声，发生在星形成星系的宇宙距离上，与巨型恒星爆炸相关联。相比之下，短型暴的尺度、能量尺度及其前体星体仍是谜团。本文报告发现一次短硬型暴，其精准定位导致后续观测识别出X射线尾声，并首次发现其光学尾声。进一步确认该暴的宿主星系为一颗在z=0.16的后类型星系，表明至少一些短硬型暴发生在星系外缘的宇宙距离上，可能源于致密双星的合并。
引用
@article{arxiv.astro-ph/0510190,
title = {Discovery of the short gamma-ray burst GRB 050709},
author = {J. S. Villasenor and D. Q. Lamb and G. R. Ricker and J. -L. Atteia and N. Kawai and N. Butler and Y. Nakagawa and J. G. Jernigan and M. Boer and G. B. Crew and T. Q. Donaghy and J. Doty and E. E. Fenimore and M. Galassi and C. Graziani and K. Hurley and A. Levine and F. Martel and M. Matsuoka and J. -F. Olive and G. Prigozhin and T. Sakamoto and Y. Shirasaki and M. Suzuki and T. Tamagawa and R. Vanderspek and S. E. Woosley and A. Yoshida and J. Braga and R. Manchanda and G. Pizzichini and K. Takagishi and M. Yamauchi},
journal= {arXiv preprint arXiv:astro-ph/0510190},
year = {2011}
}
备注
19 pages, 4 figures. Submitted to Nature