Hubble Space Telescope Space Telescope Imaging Spectrograph imaging of the host galaxy of GRB 980425/SN 1998bw

被引：43
|
作者：
Fynbo, JU
Holland, S
Andersen, MI
Thomsen, B
Hjorth, J
Björnsson, G
Jaunsen, AO
Natarajan, P
Tanvir, N
机构：
[1] Univ Copenhagen, Astron Observ, DK-2100 Copenhagen O, Denmark
[2] Aarhus Univ, Inst Phys & Astron, DK-8000 Aarhus, Denmark
[3] Oulu Univ, Div Astron, FIN-90014 Oulu, Finland
[4] Univ Iceland, Inst Sci, IS-107 Reykjavik, Iceland
[5] Univ Oslo, Inst Theoret Astrophys, N-0315 Oslo, Norway
[6] Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England
[7] Yale Univ, Dept Astron, New Haven, CT 06520 USA
[8] Univ Hertfordshire, Dept Phys Sci, Hatfield AL10 9AB, Herts, England
来源：
ASTROPHYSICAL JOURNAL | 2000年 / 542卷 / 02期
关键词：
astrometry; galaxies : individual (ESO 84-G182); gamma rays : bursts; supernovae : individual (SN 1998bw);
D O I：
10.1086/312942
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present Hubble Space Telescope Space Telescope Imaging Spectrograph observations of ESO 184-G82, the host galaxy of the gamma-ray burst GRB 980425 associated with the peculiar Type Ic supernova SN 1998bw. ESO 184-G82 is found to be an actively star-forming SBc subluminous galaxy. We detect an object consistent with being a point source within the astrometric uncertainty of 0."018 of the position of the supernova. The object is located inside a star-forming region. The object is greater than or equal to1 mag brighter than expected for the supernova based on a simple radioactive decay model. This implies either a significant flattening of the light curve or a contribution from an underlying star cluster.
引用
收藏
页码：L89 / L93
页数：5
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