Hostname: page-component-586b7cd67f-gb8f7 Total loading time: 0 Render date: 2024-11-25T14:28:00.619Z Has data issue: false hasContentIssue false
  • English
  • Français

On the Reclassification of Short GRBs

Published online by Cambridge University Press:  21 February 2013

Zhibin Zhang ,
Yongfeng Huang  and
Hongchao Liu
Zhibin Zhang
Affiliation:
Department of Physics, College of Sciences, Guizhou University, Guiyang 550025, China; email: [email protected]
Yongfeng Huang
Affiliation:
Department of Astronomy, Nanjing University, Nanjing 210093, China email: [email protected]
Hongchao Liu
Affiliation:
Department of Physics, College of Sciences, Guizhou University, Guiyang 550025, China; email: [email protected]
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

By collecting 17 short gamma-ray bursts with necessary data, we find a correlation of Lp ∝ Ep,i1.7, which is very consistent with that derived from a greatly expanded sample of 148 Swift long gamma-ray bursts. It is argued that the radiation mechanism of both long and short gamma-ray bursts should be similar, i.e., of quasi-thermal origin caused by the photosphere and the dissipation occurring very near the central engine. In addition, we suggest that the Ep,i-Lp relation can be used to identified a burst among normal short bursts, short bursts with extended emission and long bursts with short-hard properties. We also find the ratio of peak energy to fluence in the prompt γ-ray band is a prospective discriminator, similar to the traditional duration time.

Keywords

Gamma-ray burst: generalRadiation mechanisms: generalMethods: statistical
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S290: Feeding Compact Objects: Accretion on All Scales , August 2012 , pp. 361 - 363
Copyright
Copyright © International Astronomical Union 2013

References

Ghirlanda, G., Nava, L., Ghisellini, G., et al. 2009, A&A, 496, 585Google Scholar
Ghirlanda, G., Ghisellini, G., & Nava, L. 2011, MNRAS, 418, L109CrossRefGoogle Scholar
Goldstein, A., Preece, R. D., & Briggs, M. 2010, ApJ, 721, 1329Google Scholar
Lloyd-Ronning, N. M. & Ramirez-Ruiz, E. 2002, ApJ, 576, 101Google Scholar
Schaefer, B. E. 2003, ApJ, 583, L71CrossRefGoogle Scholar
Wei, D. M. & Gao, W. H. 2003, MNRAS, 345, 743CrossRefGoogle Scholar
Yonetoku, D., Murakami, T., Nakamura, T., et al. 2004, ApJ, 609, 935Google Scholar
Zhang, B., Zhang, B. B., Virgili, F. J., et al. 2009, ApJ, 703, 1696Google Scholar
Zhang, F. W., Shao, L., Yan, J. Z., & Wei, D. M. 2012, ApJ, 750, 88CrossRefGoogle Scholar
Zhang, Z. B., Chen, D. Y., & Huang, Y. F. 2012, ApJ, 755, 55CrossRefGoogle Scholar