Detection of a new, low-brightness supernova remnant possibly associated with EGRET sources
We report on the discovery of a shell-type supernova remnant in the southern sky. It is a large (∼8◦×8◦), low-brightness source with a nonthermal radio spectrum, which requires background filtering to isolate it from the diffuse background emission of the Galaxy. Three 3EG γ-ray sources are spatiall...
| Autores: | , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2001 |
| País: | Argentina |
| Institución: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repositorio: | CONICET Digital (CONICET) |
| Idioma: | inglés |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/32316 |
| Acceso en línea: | http://hdl.handle.net/11336/32316 |
| Access Level: | acceso abierto |
| Palabra clave: | Supernova remnants EGRET sources Gamma ray observations https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
| Sumario: | We report on the discovery of a shell-type supernova remnant in the southern sky. It is a large (∼8◦×8◦), low-brightness source with a nonthermal radio spectrum, which requires background filtering to isolate it from the diffuse background emission of the Galaxy. Three 3EG γ-ray sources are spatially correlated with the radio structure. We have made 21-cm line observations of the region and found that two of these sources are coincident with HI clouds. We propose that the γ-ray emission is the result of hadronic interactions between high-energy protons locally accelerated at the remnant shock front and atomic nuclei in the ambient clouds |
|---|