Zhang 2006 伽玛暴可能重新分类

主要内容:
为Volume 444 Number 7122 971-1104写的一篇news and views，这一期上有4篇关于无超新星成协的暴GRB060614的文章。

精彩摘抄:


文章信息:

astro-ph/0612614 [abs, pdf] :

Title: Astrophysics: A burst of new ideas
Authors: Bing Zhang (UNLV)
Comments: 7 pages, published in Nature News & Views, Vol 444, 1010-1011

Gigantic cosmological gamma-ray bursts have fallen into a dichotomy of long and short bursts, each with a very different origin. The discovery of an oddball burst calls for a rethink of that classification.

Nature 444, 1010-1011 (21 December 2006)

当天的编辑摘要

Editor's Summary

21 December 2006

The long and the short of it

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The tidy classification system that divided -ray bursts (GRBs) into long-duration busts (lasting more than two seconds) and short may have had its day. The final nail in its coffin may be GRB 060614. Discovered on 14 June 2006 by the Burst Alert Telescope on-board the Swift satellite, this burst was long, at 102 seconds, but as reported in a clutch of papers in this issue, it has a number of properties, including the absence of an accompanying supernova, that were previously considered diagnostic of a 'short' GRB. The hunt is now on for a classification system to take account of the diversity now apparent in GRBs. In the accompanying News & Views, Bing Zhang suggests that the answer may be to adopt a Type I/Type II classification similar to that used for supernovae.

News and Views: Astrophysics: A burst of new ideas

Gigantic cosmological -ray bursts have fallen into a dichotomy of long and short bursts, each with a very different origin. The discovery of an oddball burst calls for a rethink of that classification.

Bing Zhang

doi:10.1038/4441010a

Full Text | PDF (173K)

Letter: A new -ray burst classification scheme from GRB 060614

N. Gehrels, J. P. Norris, S. D. Barthelmy, J. Granot, Y. Kaneko, C. Kouveliotou, C. B. Markwardt, P. Mészáros, E. Nakar, J. A. Nousek, P. T. O'Brien, M. Page, D. M. Palmer, A. M. Parsons, P. W. A. Roming, T. Sakamoto, C. L. Sarazin, P. Schady, M. Stamatikos and S. E. Woosley

doi:10.1038/nature05376

First paragraph | Full Text | PDF (383K)

Letter: No supernovae associated with two long-duration -ray bursts

Johan P. U. Fynbo, Darach Watson, Christina C. Thöne, Jesper Sollerman, Joshua S. Bloom, Tamara M. Davis, Jens Hjorth, Páll Jakobsson, Uffe G. Jørgensen, John F. Graham, Andrew S. Fruchter, David Bersier, Lisa Kewley, Arnaud Cassan, José María Castro Cerón, Suzanne Foley, Javier Gorosabel, Tobias C. Hinse, Keith D. Horne, Brian L. Jensen, Sylvio Klose, Daniel Kocevski, Jean-Baptiste Marquette, Daniel Perley, Enrico Ramirez-Ruiz, Maximilian D. Stritzinger, Paul M. Vreeswijk, Ralph A. M. Wijers, Kristian G. Woller, Dong Xu and Marta Zub

doi:10.1038/nature05375

First paragraph | Full Text | PDF (163K) | Supplementary information

Letter: An enigmatic long-lasting -ray burst not accompanied by a bright supernova

M. Della Valle, G. Chincarini, N. Panagia, G. Tagliaferri, D. Malesani, V. Testa, D. Fugazza, S. Campana, S. Covino, V. Mangano, L. A. Antonelli, P. D'Avanzo, K. Hurley, I. F. Mirabel, L. J. Pellizza, S. Piranomonte and L. Stella

doi:10.1038/nature05374

First paragraph | Full Text | PDF (205K) | Supplementary information

Letter: A novel explosive process is required for the -ray burst GRB 060614

A. Gal-Yam, D. B. Fox, P. A. Price, E. O. Ofek, M. R. Davis, D. C. Leonard, A. M. Soderberg, B. P. Schmidt, K. M. Lewis, B. A. Peterson, S. R. Kulkarni, E. Berger, S. B. Cenko, R. Sari, K. Sharon, D. Frail, D.-S. Moon, P. J. Brown, A. Cucchiara, F. Harrison, T. Piran, S. E. Persson, P. J. McCarthy, B. E. Penprase, R. A. Chevalier and A. I. MacFadyen

doi:10.1038/nature05373

First paragraph | Full Text | PDF (237K) | Supplementary information