THE NEEDLE in the 100 deg2 HAYSTACK: UNCOVERING AFTERGLOWS of FERMI GRBs with the PALOMAR TRANSIENT FACTORY

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题名:	THE NEEDLE in the 100 deg2 HAYSTACK: UNCOVERING AFTERGLOWS of FERMI GRBs with the PALOMAR TRANSIENT FACTORY
作者:	浦田裕次;Singer, Leo P.;Kasliwal, Mansi M.;Cenko, S. Bradley;Cucchiara, Antonino;Gehrels, Neil;Perley, Daniel A.;Cao, Yi;Anderson, Gemma E.;Fender, Rob P.;Anupama, G. C.;Arcavi, Iair;Bhalerao, Varun;Bue, Brian D.;Connaughton, Valerie;Corsi, Alessandra;Fox, Derek B.;Goldstein, Adam;Gorosabel, J.;Horesh, Assaf
贡献者:	理學院天文研究所
关键词:	ABSORPTION SPECTROSCOPY;AFTERGLOW;ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;COSMIC GAMMA BURSTS;GALAXIES;GAMMA RADIATION;GRAVITATIONAL WAVES;NEUTRON STARS;RED SHIFT;RELATIVISTIC RANGE;SPACE;SUPERNOVAE;TELESCOPES;TRANSIENTS;X RADIATION
日期:	2015-06-10
上传时间:	2026-04-21 14:36:34 (UTC+8)
出版者:	IOP Publishing Ltd.;United States
摘要:	摘要： The Fermi Gamma-ray Space Telescope has greatly expanded the number and energy window of observations of gamma-ray bursts (GRBs). However, the coarse localizations of tens to a hundred square degrees provided by the Fermi GRB Monitor instrument have posed a formidable obstacle to locating the bursts’ host galaxies, measuring their redshifts, and tracking their panchromatic afterglows. We have built a target-of-opportunity mode for the intermediate Palomar Transient Factory in order to perform targeted searches for Fermi afterglows. Here, we present the results of one year of this program: 8 afterglow discoveries out of 35 searches. Two of the bursts with detected afterglows (GRBs 130702A and 140606B) were at low redshift (z = 0.145 and 0.384, respectively) and had spectroscopically confirmed broad-line Type Ic supernovae. We present our broadband follow-up including spectroscopy as well as X-ray, UV, optical, millimeter, and radio observations. We study possible selection effects in the context of the total Fermi and Swift GRB samples. We identify one new outlier on the Amati relation. We find that two bursts are consistent with a mildly relativistic shock breaking out from the progenitor star rather than the ultra-relativistic internal shock mechanism that powers standard cosmological bursts. Finally, in the context of the Zwicky Transient Facility, we discuss how we will continue to expand this effort to find optical counterparts of binary neutron star mergers that may soon be detected by Advanced LIGO and Virgo. 出版者： United States 出版日期： 2015-06-10 出處： The Astrophysical journal, 2015-06, Vol.806 (1) 資源來源： Institute of Physics Journals 識別號： ISSN: 0004-637X 識別號： EISSN: 1538-4357 識別號： DOI: 10.1088/0004-637X/806/1/52
显示于类别:	[天文研究所] 期刊論文

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