RXTE Observations of the SGR 1806-20 Steady Emission
Abstract
We discuss observations of the quiescent emission from the soft gamma repeater SGR 1806-20 by the Rossi X-ray Timing Explorer. We find that the 2-20 keV RXTE data is consistent with a constant spectral shape during both active bursting periods and periods of relative quiescence, and is best described by a nonthermal (power law) spectral shape. Using archival ASCA data we find that the quiescent spectrum of SGR 1806-20 is well fit over the energy range 1-30 keV by a power law of photon index 2.31 +/- 0.04, with thermal bremsstrahlung and Raymond-Smith models producing much worse fits to the data.
Keywords
Cite
@article{arxiv.astro-ph/9803056,
title = {RXTE Observations of the SGR 1806-20 Steady Emission},
author = {D. Marsden and R. E. Rothschild and C. Kouveliotou and S. Dieters and J. van Paradijs},
journal= {arXiv preprint arXiv:astro-ph/9803056},
year = {2007}
}
Comments
Total 4 pages, 1 figure, and 2 style files. To appear in the proceedings of the conference "Neutron Stars and Pulars - Thirty years after the Discovery", held Novermber 17-20, 1997 in Tokyo