INVESTIGADORES
ROMERO Gustavo Esteban
artículos
Título:
Observations of the radio emission field around the gamma -ray source 2EG J1834-2138
Autor/es:
COMBI, J. A.; ROMERO, G. E.
Revista:
ASTRONOMY & ASTROPHYSICS. SUPPLEMENT SERIES (PRINT)
Editorial:
EDP Sciences
Referencias:
Lugar: Les Ulis Cedex A; Año: 1998 vol. 128 p. 423 - 428
ISSN:
0365-0138
Resumen:
We present results of a study of the radio emission field around the best estimate position of the low-latitude EGRET source 2EG J1834-2138. The identification of this gamma -ray source with the gravitational lensed AGN PKS 1830-211 has been recently proposed by \cite[Mattox et al. (1997)]{ma97}. Additional support for this identification is provided here. Contamination produced by the diffuse disk emission has been removed from new radio images of the surrounding region of 2EG J1834-2138 allowing a determination of the fine radio structure. Several previously unnoticed supernova remnants have been found within a few degrees from the gamma -ray source. However, the only strong radio source within the 95% source location confidence contour of 2EG J1834-2138 is PKS 1830-211. In addition, both spectrum and variability analysis of the EGRET data support the identification of both sources.
