Artículo
On the nature of the variable gamma-ray sources at low galactic latitudes
Fecha de publicación:
12/2005
Editorial:
Springer
Revista:
Astrophysics And Space Science
ISSN:
0004-640X
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Population studies of EGRET gamma-ray sources indicate that there is a distinctive population of bright sources at low galactic latitudes. The sources have a distribution consistent with that of young galactic objects, with a concentration toward the inner spiral arms. There is a subgroup that displays strong variability with timescales from days to months. Following an earlier suggestion by Kaufman Bernadó et al. (2002), we explore the possibility that these sources could be high-mass microquasars. Detailed models for the gamma-ray emission that include inverse Compton interactions of electrons in the relativistic jets and photons from all local fields (stellar UV photons, synchrotron photons, soft X-ray photons from the accretion disk, and hard X-ray photons from a corona) are presented. We conclude that microquasars are excellent candidates for the parent population of the subgroup of variable low-latitude EGRET sources.
Palabras clave:
Gamma Ray Sources
,
X Rays
,
Microquasars
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(IAR)
Articulos de INST.ARG.DE RADIOASTRONOMIA (I)
Articulos de INST.ARG.DE RADIOASTRONOMIA (I)
Citación
Bosch Ramon, Valentí; Romero, Gustavo Esteban; Paredes, Josep Maria; On the nature of the variable gamma-ray sources at low galactic latitudes; Springer; Astrophysics And Space Science; 297; 12-2005; 119-129
Compartir
Altmétricas