On the nature of the ‘radio-quiet’ black hole binaries
| Autor: | Rob Fender, Paolo Soleri |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Physics
Range (particle radiation) Jet (fluid) Astrophysics::High Energy Astrophysical Phenomena Astronomy and Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics Accretion (astrophysics) Black hole Neutron star Lorentz factor symbols.namesake Space and Planetary Science QUIET Eddington luminosity symbols Astrophysics::Solar and Stellar Astrophysics Astrophysics::Earth and Planetary Astrophysics Astrophysics::Galaxy Astrophysics |
| Zdroj: | Monthly Notices of the Royal Astronomical Society. 413:2269-2280 |
| ISSN: | 0035-8711 |
| Popis: | The accretion/ejection coupling in accreting black hole binaries has been described by empirical relations between the X-ray/radio and X-ray/optical-infrared luminosities. These correlations were initially supposed to be universal. However, recently many sources have been found to produce jets that, given certain accretion-powered luminosities, are fainter than expected from the correlations. This shows that black holes with similar accretion flows can produce a broad range of outflows in power. Here we discuss whether typical parameters of the binary system, as well as the properties of the outburst, produce any effect on the energy output in the jet. We also define a jet-toy model in which the bulk Lorentz factor becomes larger than ~1 above ~0.1% of the Eddington luminosity. We finally compare the "radio quiet" black holes with the neutron stars. |
| Databáze: | OpenAIRE |
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