A VLA ARCHIVE OBSERVATION OF THE YOUNGEST KNOWN GALACTIC SUPERNOVA REMNANT G1.9+0.3
We present the analysis of an unpublished VLA archive observation made at 1.49 GHz in 1989 toward the supernova remnant G1.9+0.3, the youngest such Galactic object known.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% p...
| Autores: | , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2009 |
| País: | México |
| Institución: | Universidad Nacional Autónoma de México |
| Repositorio: | Redalyc-UNAM |
| OAI Identifier: | oai:redalyc.org:57112288007 |
| Acceso en línea: | https://www.redalyc.org/articulo.oa?id=57112288007 |
| Access Level: | acceso abierto |
| Palabra clave: | Física, Astronomía y Matemáticas 3) 9+0 supernova remnants ISM: individual (G1 |
| Sumario: | We present the analysis of an unpublished VLA archive observation made at 1.49 GHz in 1989 toward the supernova remnant G1.9+0.3, the youngest such Galactic object known.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+-70/45 yr for the remnant by comparing the 1985 and 1989 images. |
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