| Issue |
A&A
Volume 410, Number 2, November I 2003
|
|
|---|---|---|
| Page(s) | L1 - L4 | |
| Section | Letters | |
| DOI | https://doi.org/10.1051/0004-6361:20031314-1 | |
| Published online | 17 November 2003 | |
Letter to the Editor
Hadronic gamma-ray emission from windy microquasars
1
Instituto Argentino de Radioastronomía, CC 5, (1894) Villa Elisa, Buenos Aires, Argentina
2
Lawrence Livermore National Laboratory, 7000 East Avenue, L-413, Livermore, CA 94550, USA
3
CEA/DSM/DAPNIA/Service d'Astrophysique, Centre d'Études de Saclay, 91191 Gif-sur-Yvette, France
4
Instituto de Astronomía y Física del Espacio/CONICET, CC 67, Suc. 28, Buenos Aires, Argentina
Corresponding author: G. E. Romero, romero@venus.fisica.unlp.edu.ar
Received:
1
July
2003
Accepted:
2
September
2003
The jets of microquasars with high-mass stellar companions are exposed to the dense matter field of the stellar wind. We present estimates of the gamma-ray emission expected from the jet-wind hadronic interaction and we discuss the detectability of the phenomenon at high energies. The proposed mechanism could explain some of the unidentified gamma-ray sources detected by EGRET instrument on the galactic plane.
Key words: X-rays: binaries / stars / gamma-rays: observations / gamma-rays: theory
© ESO, 2003
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