Multiwavelength Photon Spectra from Microquasars
نویسندگان
چکیده
منابع مشابه
Time-dependent Synchrotron and Compton Spectra from Jets of Microquasars
Jet models for the high-energy emission of Galactic X-ray binary sources have regained significant interest with detailed spectral and timing studies of the X-ray emission from microquasars, the recent detection by the HESS collaboration of very-high-energy γ-rays from the microquasar LS 5039, and the earlier suggestion of jet models for ultraluminous X-ray sources observed in many nearby galax...
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A solid theoretical understanding of how inflowing, accreting plasma around black holes and other compact objects gives rise to outflowing winds and jets is still lacking, despite decades of observations. The fact that similar processes and morphologies are observed in both X-ray binaries as well as active galactic nuclei has led to suggestions that the underlying physics could scale with black...
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The systematics of OB spectra are reviewed in the optical domain, dominated by photospheric lines, and in the far ultraviolet (both IUE and FUSE ranges), in which the stellar-wind profiles dominate. First, the two-dimensional (temperature, luminosity) trends in normal spectra are surveyed. Then, the normal reference frame having been established, various categories of peculiar objects can be di...
متن کاملPhoton-photon Absorption of Very High Energy Gamma Rays from Microquasars: Application to Ls 5039
Very high energy (VHE) γ-rays have recently been detected from the Galactic black-hole candidate and microquasar LS 5039. A plausible site for the production of these VHE γ-rays is the mildly relativistic outflow close to the base of the jet. However, at distances comparable to the binary separation, the intense photon field of the stellar companion will lead to substantial γγ absorption of VHE...
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The jets of microquasars with high-mass stellar companions are exposed to the dense matter field of the stellar wind as well as to the photon densities found in the surrounding medium. Photopion and proton-proton interactions could then lead to copious production of neutrinos. In this work, we analyze the hadronic microquasar model, particularly in what concerns to the neutrino production. Limi...
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ژورنال
عنوان ژورنال: Publications of the Astronomical Society of Japan
سال: 2009
ISSN: 0004-6264,2053-051X
DOI: 10.1093/pasj/61.5.949