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- W3099018047 endingPage "102" @default.
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- W3099018047 abstract "Observations show that the accretion flows in low-luminosity active galactic nuclei probably have a two-component structure with an inner, hot, optically thin, advection-dominated accretion flow (ADAF) and an outer, truncated, cool, optically thick accretion disk. As shown by Taam et al., the truncation radius as a function of mass accretion rate is strongly affected by including the magnetic field within the framework of disk evaporation model, i.e., an increase in the magnetic field results in a smaller truncation radius of the accretion disk. In this work, we calculate the emergent spectrum of an inner ADAF + an outer truncated accretion disk around a supermassive black hole based on the prediction by Taam et al.. It is found that an increase in the magnetic field from β = 0.8 to β = 0.5 (with magnetic pressure pm = B2/8π = (1 − β)ptot, ptot = pgas + pm) results in a factor of ∼8.7 increase in the luminosity from the truncated accretion disk. Meanwhile, results of the peak emission of the truncated accretion disk shift toward a a factor of ∼5 higher frequency. We found that the equipartition of gas pressure to magnetic pressure, i.e., β = 0.5, failed to explain the observed anti-correlation between L2–10 keV/LEdd and the bolometric correction κ2–10 keV (with κ2–10 keV = Lbol/L2–10 keV). The emergent spectra for larger values of β = 0.8 or β = 0.95 can explain the observed L2–10 keV/LEdd–κ2–10 keV correlation. We argue that in the disk evaporation model, the electrons in the corona are assumed to be heated only by a transfer of energy from the ions to electrons via Coulomb collisions, which is reasonable for accretion with a lower mass accretion rate. Coulomb heating is the dominated heating mechanism for the electrons only if the magnetic field is strongly sub-equipartition, which is roughly consistent with observations." @default.
- W3099018047 created "2020-11-23" @default.
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- W3099018047 date "2013-10-18" @default.
- W3099018047 modified "2023-10-16" @default.
- W3099018047 title "THE DISK EVAPORATION MODEL FOR THE SPECTRAL FEATURES OF LOW-LUMINOSITY ACTIVE GALACTIC NUCLEI" @default.
- W3099018047 cites W1887645903 @default.
- W3099018047 cites W1965997551 @default.
- W3099018047 cites W1968646907 @default.
- W3099018047 cites W1971210827 @default.
- W3099018047 cites W1972837740 @default.
- W3099018047 cites W1973648731 @default.
- W3099018047 cites W1977826595 @default.
- W3099018047 cites W1979068556 @default.
- W3099018047 cites W1987139935 @default.
- W3099018047 cites W1990386756 @default.
- W3099018047 cites W1992958246 @default.
- W3099018047 cites W1999417864 @default.
- W3099018047 cites W2002721295 @default.
- W3099018047 cites W2002811240 @default.
- W3099018047 cites W2010514962 @default.
- W3099018047 cites W2010897480 @default.
- W3099018047 cites W2020872138 @default.
- W3099018047 cites W2022083816 @default.
- W3099018047 cites W2024174418 @default.
- W3099018047 cites W2028233235 @default.
- W3099018047 cites W2033932783 @default.
- W3099018047 cites W2034695486 @default.
- W3099018047 cites W2034751728 @default.
- W3099018047 cites W2035637895 @default.
- W3099018047 cites W2037084352 @default.
- W3099018047 cites W2041624171 @default.
- W3099018047 cites W2043536452 @default.
- W3099018047 cites W2049319759 @default.
- W3099018047 cites W2050303196 @default.
- W3099018047 cites W2050444942 @default.
- W3099018047 cites W2050640576 @default.
- W3099018047 cites W2051556129 @default.
- W3099018047 cites W2051864624 @default.
- W3099018047 cites W2052100039 @default.
- W3099018047 cites W2058958619 @default.
- W3099018047 cites W2070717200 @default.
- W3099018047 cites W2075723008 @default.
- W3099018047 cites W2075884647 @default.
- W3099018047 cites W2077021121 @default.
- W3099018047 cites W2081809728 @default.
- W3099018047 cites W2083748562 @default.
- W3099018047 cites W2084098739 @default.
- W3099018047 cites W2084472499 @default.
- W3099018047 cites W2089062277 @default.
- W3099018047 cites W2092137652 @default.
- W3099018047 cites W2101335960 @default.
- W3099018047 cites W2105041115 @default.
- W3099018047 cites W2128271156 @default.
- W3099018047 cites W2140646506 @default.
- W3099018047 cites W2148115088 @default.
- W3099018047 cites W2148991125 @default.
- W3099018047 cites W2167436765 @default.
- W3099018047 cites W3098523288 @default.
- W3099018047 cites W3098528457 @default.
- W3099018047 cites W3098589636 @default.
- W3099018047 cites W3098787420 @default.
- W3099018047 cites W3099008282 @default.
- W3099018047 cites W3099709808 @default.
- W3099018047 cites W3099961299 @default.
- W3099018047 cites W3100432035 @default.
- W3099018047 cites W3100512073 @default.
- W3099018047 cites W3101977953 @default.
- W3099018047 cites W3102431739 @default.
- W3099018047 cites W3102691704 @default.
- W3099018047 cites W3103114584 @default.
- W3099018047 cites W3103225267 @default.
- W3099018047 cites W3104255300 @default.
- W3099018047 cites W3123668798 @default.
- W3099018047 cites W4290609793 @default.
- W3099018047 doi "https://doi.org/10.1088/0004-637x/777/2/102" @default.
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