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An origin for short γ-ray bursts unassociated with current star formation
Open accessAbstract
Two short (< 2 s) γ-ray bursts (GRBs) have recently been localized and fading afterglow counterparts detected. The combination of these two results left unclear the nature of the host galaxies of the bursts, because one was a star-forming dwarf, while the other was probably an elliptical galaxy. Here we report the X-ray localization of a short burst (GRB 050724) with unusual γ-ray and X-ray properties. The X-ray afterglow lies off the centre of an elliptical galaxy at a redshift of z = 0.258 (ref. 5), coincident with the position determined by ground-based optical and radio observations. The low level of star formation typical for elliptical galaxies makes it unlikely that the burst originated in a supernova explosion. A supernova origin was also ruled out for GRB 050709 (refs 3, 31), even though that burst took place in a galaxy with current star formation. The isotropic energy for the short bursts is 2–3 orders of magnitude lower than that for the long bursts. Our results therefore suggest that an alternative source of bursts—the coalescence of binary systems of neutron stars or a neutron star-black hole pair—are the progenitors of short bursts.
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Cited by
Zhang, B., Fan, Y. Z., Dyks, J., Kobayashi, S., Meszaros, P., Burrows, D. N., Nousek, J. A., & Gehrels, N. (2006) · The Astrophysical Journal · doi:10.1086/500723 · Cited by 1,079
“The similar light curves for some long GRBs (e.g., GRB 050502B; Burrows et al. 2005a) and some short GRBs (e.g., GRB 050724; Barthelmy et al. 2005b) indicate that different progenitor systems may share some similarities in the central engine.”
BackgroundInfluentialSelf-citationThe physics of gamma-ray bursts & relativistic jets
Kumar, P., & Zhang, B. (2015) · Physics Reports · doi:10.1016/j.physrep.2014.09.008 · Cited by 952
Self-citationGamma-Ray Bursts in the Swift Era
Gehrels, N., Ramirez-Ruiz, E., & Fox, D. B. (2009) · Annual Review of Astronomy and Astrophysics · doi:10.1146/annurev.astro.46.060407.145147 · Cited by 615
Self-citationA new γ-ray burst classification scheme from GRB 060614
Gehrels, N., Norris, J. P., Barthelmy, S. D., Granot, J., Kaneko, Y., Kouveliotou, C., Markwardt, C. B., Mészáros, P., Nakar, E., Nousek, J. A., et al. (2006) · Nature · doi:10.1038/nature05376 · Cited by 555
Self-citationThe Evolution of Compact Binary Star Systems
Postnov, K. A., & Yungelson, L. R. (2014) · Living Reviews in Relativity · doi:10.12942/lrr-2014-3 · Cited by 486
Metadata
- Authors
- Barthelmy, S. D., Chincarini, G., Burrows, D. N., Gehrels, N., Covino, S., Moretti, A., Romano, P., O'Brien, P. T., Sarazin, C. L., Kouveliotou, C., Goad, M., Vaughan, S., Tagliaferri, G., Zhang, B., Antonelli, L. A., Campana, S., Cummings, J. R., D'Avanzo, P., Davies, M. B., Giommi, P., Grupe, D., Kaneko, Y., Kennea, J. A., King, A., Kobayashi, S., Melandri, A., Meszaros, P., Nousek, J. A., Patel, S., Sakamoto, T., & Wijers, R. A. M. J.
- Venue
- Nature
- Published
- 2005-12
- Volume
- 438
- Issue
- 7070
- Pages
- 994-996
- ISSN
- 0028-0836 (ISSN-L)
- 1476-4687
- OpenAlex
- W2128789238
- Cited by
- 333
- References
- 0
- FWCI
- 26.55
- Type
- journal article
- Language
- en
- Open access
- green
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- Barthelmy, S. D., Chincarini, G., Burrows, D. N., Gehrels, N., Covino, S., Moretti, A., Romano, P., O'Brien, P. T., Sarazin, C. L., Kouveliotou, C., Goad, M., Vaughan, S., Tagliaferri, G., Zhang, B., Antonelli, L. A., Campana, S., Cummings, J. R., D'Avanzo, P., Davies, M. B., . . . Wijers, R. A. M. J. (2005). An origin for short γ-ray bursts unassociated with current star formation. Nature. https://doi.org/10.1038/nature04392
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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