English

Supernova Remnant 1987A: The Latest Report from the Chandra X-Ray Observatory

Astrophysics 2009-11-10 v1

Abstract

We continue monitoring supernova remnant (SNR) 1987A with the {\it Chandra X-ray Observatory}. As of 2004 January, bright X-ray spots in the northwest and the southwest are now evident in addition to the bright eastern ring. The overall X-ray spectrum, Since 2002 December, can be described by a planar shock with an electron temperature of \sim2.1 keV. The soft X-ray flux is now 8 ×\times 1013^{-13} ergs cm2^{-2} s1^{-1}, which is about five times higher than four years ago. This flux increase rate is consistent with our prediction based on an exponential density distribution along the radius of the SNR between the H{\small II} region and the inner ring. We still have no direct evidence of a central point source, and place an upper limit of LXL_X = 1.3 ×\times 1034^{34} ergs s1^{-1} on the 3-10 keV band X-ray luminosity.

Keywords

Cite

@article{arxiv.astro-ph/0501561,
  title  = {Supernova Remnant 1987A: The Latest Report from the Chandra X-Ray Observatory},
  author = {Sangwook Park and Svetozar A. Zhekov and David N. Burrows and Gordon P. Garmire and Dick McCray},
  journal= {arXiv preprint arXiv:astro-ph/0501561},
  year   = {2009}
}

Comments

9 pages, AdSpR in press