A VLA Archive Observation of the Youngest Known Galactic Supernova Remnant G1.9+0.3

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We present the analysis of an unpublished VLA archive observation made at 1.49 GHz in 1989 toward the supernova remnant G1.9+0.3, the youngest such Galactic object known. This observation agrees with the time evolution in angular size previously reported. We derive an expansion rate of 0.46 +- 0.11 % per year and an age of 220+45-70 yr for the remnant by comparing the 1985 and 1989 images.
5 pages, 2 figures

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Astrophysics of Galaxies, High Energy Astrophysical Phenomena

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http://salesiana.dossiersoluciones.com/handle/123456789/220481

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0902.3236
 http://arxiv.org/abs/0902.3236

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arXiv