RMxAA

Revista Mexicana de Astronomía y Astrofísica

ISSN: 3061-8649
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Keywords

ISM: individual (G1.9+0.3)
supernova remnants
Astrophysics - Galaxy Astrophysics
Astrophysics - High Energy Astrophysical Phenomena

How to Cite

A VLA Archive Observation of the Youngest Known Galactic Supernova Remnant G1.9+0.3. (2009). Revista Mexicana De Astronomía Y Astrofísica, 45(1), 91-94. https://astronomia.unam.mx/journals/rmxaa/article/view/2009rmxaa..45...91g

Abstract

We present the analysis of an unpublished VLA archive observation made at 1.49 GHz in 1989 toward the supernova remnant G1.9+0.3, the youngest such Galactic object known.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.
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