The swift discovery of X-ray afterglows accompanying short bursts from SGR 1900+14

Y. E. Nakagawa, T. Sakamoto, G. Sato, N. Gehrels, K. Hurley, D. M. Palmer

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The discovery of X-ray afterglows accompanying two short bursts from SGR 1900+14 is presented. The afterglow luminosities at the end of each observation are lower by 30%-50% than their initial luminosities, and decay with power-law indices p ∼ 0.2-0.4. Their initial bolometric luminosities are L ∼ 1034-1035 erg s-1. We discuss analogies and differences between the X-ray afterglows of SGR short bursts and short gamma-ray bursts.

Original languageEnglish
JournalAstrophysical Journal
Volume681
Issue number2 PART 2
DOIs
Publication statusPublished - 2008

Keywords

  • Stars: Neutron

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

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