Early optical emission from the γ-ray burst of 4 October 2002

D. W. Fox, S. Yost, S. R. Kulkarni, K. Torii, T. Kato, H. Yamaoka, M. Sako, F. A. Harrison, R. Sari, P. A. Price, E. Berger, A. M. Soderberg, S. G. Djorgovski, A. J. Barth, S. H. Pravdo, D. A. Frail, A. Gal-Yam, Y. Lipkin, T. Mauch, C. HarrisonH. Buttery

Research output: Contribution to journalArticle

99 Scopus citations

Abstract

Observations of the long-lived emission - or 'afterglow' - of long-duration γ-ray bursts place them at cosmological distances, but the origin of these energetic explosions remains a mystery. Observations of optical emission contemporaneous with the burst of γ-rays should provide insight into the details of the explosion, as well as into the structure of the surrounding environment. One bright optical flash was detected during a burst1, but other efforts2,3 have produced negative results. Here we report the discovery of the optical counterpart of GRB021004 only 193 seconds after the event. The initial decline is unexpectedly slow and requires varying energy content in the γ-ray burst blastwave over the course of the first hour. Further analysis of the X-ray and optical afterglow suggests additional energy variations over the first few days.

Original languageEnglish (US)
Pages (from-to)284-286
Number of pages3
JournalNature
Volume422
Issue number6929
DOIs
StatePublished - Mar 20 2003

All Science Journal Classification (ASJC) codes

  • General

Fingerprint Dive into the research topics of 'Early optical emission from the γ-ray burst of 4 October 2002'. Together they form a unique fingerprint.

  • Cite this

    Fox, D. W., Yost, S., Kulkarni, S. R., Torii, K., Kato, T., Yamaoka, H., Sako, M., Harrison, F. A., Sari, R., Price, P. A., Berger, E., Soderberg, A. M., Djorgovski, S. G., Barth, A. J., Pravdo, S. H., Frail, D. A., Gal-Yam, A., Lipkin, Y., Mauch, T., ... Buttery, H. (2003). Early optical emission from the γ-ray burst of 4 October 2002. Nature, 422(6929), 284-286. https://doi.org/10.1038/nature01504