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A short gamma-ray burst apparently associated with an elliptical galaxy at redshift z = 0.225.

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journal contribution
posted on 09.10.2019, 14:33 by N Gehrels, CL Sarazin, PT O'Brien, B Zhang, L Barbier, SD Barthelmy, A Blustin, DN Burrows, J Cannizzo, JR Cummings, M Goad, ST Holland, CP Hurkett, JA Kennea, A Levan, CB Markwardt, KO Mason, P Meszaros, M Page, DM Palmer, E Rol, T Sakamoto, R Willingale, L Angelini, A Beardmore, PT Boyd, A Breeveld, S Campana, MM Chester, G Chincarini, LR Cominsky, G Cusumano, M de Pasquale, EE Fenimore, P Giommi, C Gronwall, D Grupe, JE Hill, D Hinshaw, J Hjorth, D Hullinger, KC Hurley, S Klose, S Kobayashi, C Kouveliotou, HA Krimm, V Mangano, FE Marshall, K McGowan, A Moretti, RF Mushotzky, K Nakazawa, JP Norris, JA Nousek, JP Osborne, K Page, AM Parsons, S Patel, M Perri, T Poole, P Romano, PWA Roming, S Rosen, G Sato, P Schady, AP Smale, J Sollerman, R Starling, M Still, M Suzuki, G Tagliaferri, T Takahashi, M Tashiro, J Tueller, AA Wells, NE White, RAMJ Wijers
Gamma-ray bursts (GRBs) come in two classes: long (> 2 s), soft-spectrum bursts and short, hard events. Most progress has been made on understanding the long GRBs, which are typically observed at high redshift (z approximately 1) and found in subluminous star-forming host galaxies. They are likely to be produced in core-collapse explosions of massive stars. In contrast, no short GRB had been accurately (< 10'') and rapidly (minutes) located. Here we report the detection of the X-ray afterglow from--and the localization of--the short burst GRB 050509B. Its position on the sky is near a luminous, non-star-forming elliptical galaxy at a redshift of 0.225, which is the location one would expect if the origin of this GRB is through the merger of neutron-star or black-hole binaries. The X-ray afterglow was weak and faded below the detection limit within a few hours; no optical afterglow was detected to stringent limits, explaining the past difficulty in localizing short GRBs.

Funding

ASI, NASA and PPARC.

History

Citation

Nature, 2005, 437 (7060), pp. 851-854

Author affiliation

/Organisation/COLLEGE OF SCIENCE AND ENGINEERING/Department of Physics and Astronomy

Version

AM (Accepted Manuscript)

Published in

Nature

Publisher

Springer Nature

eissn

1476-4687

Acceptance date

10/08/2005

Copyright date

2005

Available date

09/10/2019

Language

en

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