Levan 2011 GRB 110328A的观测

主要内容:

全名GRB110328A/Swift J164449.3+573451, 红移约0.5，可能不是伽马暴，但又比AGN的峰值能量高很多。

说可能是一个被星系级黑洞吞噬的恒星。
新闻参考：http://bzhang.lamost.org/website/archives/grb110328a_nasa/

精彩摘抄:

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x射线光变，看起来实在不像伽马暴

文章信息:

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Title:		An extremely luminous panchromatic outburst from the nucleus of a distant galaxy
Authors:		Levan, A. J.; Tanvir, N. R.; Cenko, S. B.; Perley, D. A.; Wiersema, K.; Bloom, J. S.; Fruchter, A. S.; de Ugarte Postigo, A.; O'Brien, P. T.; Butler, N.; van der Horst, A. J.; Leloudas, G.; Morgan, A. N.; Misra, K.; Bower, G.; Farihi, J.; Tunnicliffe, R. L.; Modjaz, M.; Silverman, J. M.; Hjorth, J.; Thoene, C.; Cucchiara, A.; Castro Ceron, J. M.; Castro-Tirado, A.; Arnold, J. A.; Bremer, M.; Brodie, J. P.; Carroll, T.; Cooper, M. C.; Curran, P. A.; Cutri, R. M.; Ehle, J.; Forbes, D.; Fynbo, J.; Gorosabel, J.; Graham, J.; Guizy, S.; Hoffman, D. I.; Jakobsson, P.; Kamble, A.; Kerr, T.; Kasliwal, M. M.; Kouveliotou, C.; Kocesvki, D.; Law, N. M.; Nugent, P. E.; Ofek, E. O.; Poznanski, D.; Quimby, R. M.; Rol, E.; Romanowsky, A. J.; Sanchez-Ramirez, R.; Schulze, S.; Singh, N.; Starling, R. L. C.; Strom, R. G.; Wheatley, P. J.; Wijers, R. A. M. J.; Winters, J. M.; Wold, T.; Xu, D.
Publication:		eprint arXiv:1104.3356
Publication Date:		04/2011
Origin:		ARXIV
Keywords:		Astrophysics - High Energy Astrophysical Phenomena
Bibliographic Code:		2011arXiv1104.3356L

Abstract

Variable X-ray and gamma-ray emission is characteristic of the most extreme physical processes in the Universe, and studying the sources of these energetic photons has been a major driver in astronomy for the past 50 years. Here we present multiwavelength observations of a unique gamma-ray selected transient, discovered by Swift, which was accompanied by bright emission across the electromagnetic spectrum, and whose properties are unlike any previously observed source. We pinpoint the event to the center of a small, star-forming galaxy at redshift z=0.3534. Its high-energy emission has lasted much longer than any gamma-ray burst, while its peak luminosity was about 100 times higher than the brightest active galactic nuclei. The association of the outburst with the center of its host galaxy suggests that this phenomenon has its origin in a new, rare mechanism associated with a massive black hole in the nucleus of a galaxy.

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