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論文・著書情報
| タイトル |
| 和文: | |
| 英文: | The afterglow of GRB 050709 and the nature of the short-hard γ-ray bursts |
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| 著者 |
| 和文: |
Fox, D. B.,
Frail, D. A.,
Price, P. A.,
Kulkarni, S. R.,
Berger, E.,
Piran, T.,
Soderberg, A. M.,
Cenko, S. B.,
Cameron, P. B.,
Gal-Yam, A.,
Kasliwal, M. M.,
Moon, D.-S.,
Harrison, F. A.,
Nakar, E.,
Schmidt, B. P.,
Penprase, B.,
Chevalier, R. A.,
Kumar, P.,
Roth, K.,
Watson, D.,
Lee, B. L.,
Shectman, S.,
Phillips, M. M.,
Roth, M.,
McCarthy, P. J.,
Rauch, M.,
Cowie, L.,
Peterson, B. A.,
Rich, J.,
河合 誠之,
Aoki, K.,
Kosugi, G.,
Totani, T.,
Park, H.-S.,
MacFadyen, A.,
Hurley, K. C..
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| 英文: |
Fox, D. B.,
Frail, D. A.,
Price, P. A.,
Kulkarni, S. R.,
Berger, E.,
Piran, T.,
Soderberg, A. M.,
Cenko, S. B.,
Cameron, P. B.,
Gal-Yam, A.,
Kasliwal, M. M.,
Moon, D.-S.,
Harrison, F. A.,
Nakar, E.,
Schmidt, B. P.,
Penprase, B.,
Chevalier, R. A.,
Kumar, P.,
Roth, K.,
Watson, D.,
Lee, B. L.,
Shectman, S.,
Phillips, M. M.,
Roth, M.,
McCarthy, P. J.,
Rauch, M.,
Cowie, L.,
Peterson, B. A.,
Rich, J.,
Kawai, N.,
Aoki, K.,
Kosugi, G.,
Totani, T.,
Park, H.-S.,
MacFadyen, A.,
Hurley, K. C..
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| 言語 |
English |
| 掲載誌/書名 |
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巻, 号, ページ
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Vol. 437
pp. 845-850
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| 出版年月 |
2005年10月 |
| 出版者 |
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| 会議名称 |
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| 開催地 |
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| DOI |
https://doi.org/10.1038/nature04189 |
| アブストラクト |
The final chapter in the long-standing mystery of the γ-ray bursts (GRBs) centres on the origin of the short-hard class of bursts, which are suspected on theoretical grounds to result from the coalescence of neutron-star or black-hole binary systems. Numerous searches for the afterglows of short-hard bursts have been made, galvanized by the revolution in our understanding of long-duration GRBs that followed the discovery in 1997 of their broadband (X-ray, optical and radio) afterglow emission. Here we present the discovery of the X-ray afterglow of a short-hard burst, GRB 050709, whose accurate position allows us to associate it unambiguously with a star-forming galaxy at redshift z = 0.160, and whose optical lightcurve definitively excludes a supernova association. Together with results from three other recent short-hard bursts, this suggests that short-hard bursts release much less energy than the long-duration GRBs. Models requiring young stellar populations, such as magnetars and collapsars, are ruled out, while coalescing degenerate binaries remain the most promising progenitor candidates. |
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