The Swift Discovery of X-ray Afterglows Accompanying Short Bursts from SGR 1900+14
arXiv:0806.0099 · doi:10.1086/590428
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 ~ 10^34-10^35 erg s^-1. We discuss analogies and differences between the X-ray afterglows of SGR short bursts and short gamma-ray bursts.
12 pages, 3 figures, 3 tables, accepted for publication in ApJL