منابع مشابه
Microquasars and gamma-ray sources
Microquasars are X-ray binary systems with non-thermal radio emission originated in jet-like features. They are attractive sites for gamma-ray production, since relativistic particles in the jet should traverse locally strong both photon and matter fields. In this review we discuss whether some of the unidentified gammaray sources detected by the EGRET instrument of the Compton Gamma-Ray Observ...
متن کاملMicroquasars as high-energy gamma-ray sources
Galactic microquasars are certainly one of the most recent additions to the field of high energy astrophysics and have attracted increasing interest over the last decade. However, the high energy part of the spectrum of microquasars is the most poorly known, mainly due the lack of sensitive instrumentation in the past. Microquasars are now primary targets for all of the observatories working in...
متن کاملHigh-mass microquasars and low-latitude gamma-ray sources
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 homogeneou...
متن کاملHadronic gamma-ray emission from windy microquasars
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...
متن کاملAGNs and microquasars as high energy γ-ray sources
The microquasar phenomenon has grown in prominence recently, as it has been found that most X-ray binaries show radio emission, associated with jets collimated beams of relativistic plasma. The ejection takes place in a bipolar way perpendicular to the accretion disk associated with the compact star, a black hole or a neutron star. The word microquasar itself was chosen by the analogy of these ...
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ژورنال
عنوان ژورنال: Chinese Journal of Astronomy and Astrophysics
سال: 2005
ISSN: 1009-9271
DOI: 10.1088/1009-9271/5/s1/110