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arXiv:0706.1909 (astro-ph)
[Submitted on 13 Jun 2007]

Title:Observations of X-rays and Thermal Dust Emission from the Supernova Remnant Kes 75

Authors:T. D. Morton, P. Slane, K. J. Borkowski, S. P. Reynolds, D. J. Helfand, B. M. Gaensler, J. P. Hughes
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Abstract: We present Spitzer Space Telescope and Chandra X-ray Observatory observations of the composite Galactic supernova remnant Kes 75 (G29.7-0.3). We use the detected flux at 24 microns and hot gas parameters from fitting spectra from new, deep X-ray observations to constrain models of dust emission, obtaining a dust-to-gas mass ratio M_dust/M_gas ~0.001. We find that a two-component thermal model, nominally representing shocked swept-up interstellar or circumstellar material and reverse-shocked ejecta, adequately fits the X-ray spectrum, albeit with somewhat high implied densities for both components. We surmise that this model implies a Wolf-Rayet progenitor for the remnant. We also present infrared flux upper limits for the central pulsar wind nebula.
Comments: 7 pages, 2 tables, 4 figures, uses emulateapj. Accepted for publication in ApJ
Subjects: Astrophysics (astro-ph)
Cite as: arXiv:0706.1909 [astro-ph]
  (or arXiv:0706.1909v1 [astro-ph] for this version)
  https://doi.org/10.48550/arXiv.0706.1909
Journal reference: Astrophys.J.667:219-225,2007
Related DOI: https://doi.org/10.1086/520496

Submission history

From: Patrick Slane [view email]
[v1] Wed, 13 Jun 2007 14:19:12 UTC (107 KB)
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