2005A&A...429..267B


C.D.S. - SIMBAD4 rel 1.7 - 2020.09.25CEST03:03:42

2005A&A...429..267B - Astronomy and Astrophysics, volume 429, 267-276 (2005/1-1)

High-mass microquasars and low-latitude gamma-ray sources.

BOSCH-RAMON V., ROMERO G.E. and PAREDES J.M.

Abstract (from CDS):

Population studies of unidentified EGRET sources suggest that there exist at least three different populations of galactic gamma-ray sources. One of these populations is formed by young objects distributed along the galactic plane with a strong concentration toward the inner spiral arms of the Galaxy. Variability, spectral and correlation analysis indicate that this population is not homogeneous. In particular, there is a subgroup of sources that display clear variability in their gamma-ray fluxes on timescales from days to months. Following the proposal by Kaufman Bernado et al. (2002A&A...385L..10K), we suggest that this group of sources might be high-mass microquasars, i.e. accreting black holes or neutron stars with relativistic jets and early-type stellar companions. We present detailed inhomogeneous models for the gamma-ray emission of these systems that include both external and synchrotron self-Compton interactions. We have included effects of interactions between the jet and all external photon fields to which it is exposed: companion star, accretion disk, and hot corona. We make broadband calculations to predict the spectral energy distribution of the emission produced in the inner jet of these objects up to GeV energies. The results and predictions can be tested by present and future gamma-ray instruments like INTEGRAL, AGILE, and GLAST.

Abstract Copyright:

Journal keyword(s): X-rays: binaries - stars: winds, outflows - gamma-rays: observations - gamma-rays: theory

Simbad objects: 4

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Number of rows : 4

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 LS I +61 303 HXB 02 40 31.6641883136 +61 13 45.591138110 11.27 11.61 10.75 10.19 9.55 B0Ve 763 2
2 SNR G338.3-00.0 Rad 16 40 30.0 -46 33 00           ~ 132 2
3 V* V479 Sct HXB 18 26 15.0561532140 -14 50 54.249464136 12.02 12.23 11.27 11.04   ON6V((f))z 495 2
4 NAME Gould Belt PoG ~ ~           ~ 719 1

    Equat.    Gal    SGal    Ecl

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2020.09.25-03:03:42

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