期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 411, 期 4, 页码 2792-2803出版社
OXFORD UNIV PRESS
DOI: 10.1111/j.1365-2966.2010.17879.x
关键词
gamma-ray burst: individual: GRB 100316D; supernovae: individual: SN 2010bh
资金
- ESO Telescopes at the La Silla or Paranal Observatories [084.D-0939, 083.A-0644, 084.A-0260]
- NASA [NAS 5-26555, NAS5-00136]
- STFC
- British Council and Platform Beta Techniek [PPS WS 005]
- Danish National Research Foundation
- STFC [ST/H001972/1, ST/F002599/1, ST/H002391/1, PP/E001149/1, ST/H00260X/1, PP/C50633X/2, PP/E002064/1] Funding Source: UKRI
- Science and Technology Facilities Council [PP/E001149/1, ST/H00260X/1, PP/E002064/1, ST/H002391/1, ST/H001972/1, PP/C50633X/2, ST/F002599/1] Funding Source: researchfish
- UK Space Agency [ST/G008655/1] Funding Source: researchfish
We report the Swift discovery of the nearby long, soft gamma-ray burst GRB 100316D, and the subsequent unveiling of its low-redshift host galaxy and associated supernova. We derive the redshift of the event to be z = 0.0591 +/- 0.0001 and provide accurate astrometry for the gamma-ray burst (GRB) supernova (SN). We study the extremely unusual prompt emission with time-resolved gamma-ray to X-ray spectroscopy and find that the spectrum is best modelled with a thermal component in addition to a synchrotron emission component with a low peak energy. The X-ray light curve has a remarkably shallow decay out to at least 800 s. The host is a bright, blue galaxy with a highly disturbed morphology and we use Gemini-South, Very Large Telescope and Hubble Space Telescope observations to measure some of the basic host galaxy properties. We compare and contrast the X-ray emission and host galaxy of GRB 100316D to a subsample of GRB-SNe. GRB 100316D is unlike the majority of GRB-SNe in its X-ray evolution, but resembles rather GRB 060218, and we find that these two events have remarkably similar high energy prompt emission properties. Comparison of the host galaxies of GRB-SNe demonstrates, however, that there is a great diversity in the environments in which GRB-SNe can be found. GRB 100316D is an important addition to the currently sparse sample of spectroscopically confirmed GRB-SNe, from which a better understanding of long GRB progenitors and the GRB-SN connection can be gleaned.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据