An inquiry into the nature of the gamma-ray source 3EG J1828+0142

Citation
B. Punsly et al., An inquiry into the nature of the gamma-ray source 3EG J1828+0142, ASTRON ASTR, 364(2), 2000, pp. 552-556
Citations number
33
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Space Sciences
Journal title
ASTRONOMY AND ASTROPHYSICS
ISSN journal
0004-6361 → ACNP
Volume
364
Issue
2
Year of publication
2000
Pages
552 - 556
Database
ISI
SICI code
0004-6361(200012)364:2<552:AIITNO>2.0.ZU;2-B
Abstract
The unidentified, low-latitude, gamma -ray source 3EG J1828+0142 presents h igh levels of variability and a steep spectral index Gamma similar to 2.7. Here we propose a model for this source where the high-energy emission is p roduced by a galactic Kerr-Newman black hole. The model takes into account electron-positron annihilation losses in the calculation of the expected sp ectral energy distribution and can reproduce the observational features, in cluding the absence of a strong radio counterpart. We also report the disco very of a nearby supernova remnant that could be associated with the origin al supernova explosion that created the black hole. Several faint radio sou rces were also detected in the radio field within the inner gamma -ray conf idence contour and their spectral index estimated. Some of these sources co uld be the expected weak radio counterpart.