Matches in SemOpenAlex for { <https://semopenalex.org/work/W2907546655> ?p ?o ?g. }
- W2907546655 endingPage "1734" @default.
- W2907546655 startingPage "1724" @default.
- W2907546655 abstract "Mass accretion rate is a key parameter in accretion disk theory. It determines black hole accretion mode. In large scale cosmological simulations studying galaxy formation and evolution, Bondi radius can at most be marginally resolved. In those simulations, Bondi accretion formula is always used to estimate black hole accretion rate. Bondi solution is too simple, which cannot represent the real accretion process. We perform simulations of hot accretion flow at parsec scale irradiated by a low luminosity active galactic nucleus (AGN). We perform 77 simulations with varying density and temperature at outer boundary (10 parsec). Our purpose is to find a formula to calculate real black hole accretion rate based on the gas density and temperature at parsec scale. We define Eddington accretion rate to be $dot M_{rm Edd}=10L_{rm Edd}/c^2$, with $L_{rm Edd}$ and $c$ been Eddington luminosity and speed of light respectively. We set black hole mass to be $10^8M_{odot}$, $M_{odot}$ is solar mass. We find that black hole accretion rate can be expressed as $frac{dot M_{rm BH} }{dot M_{rm Edd}}=10^{-3.11} (rho_0/10^{-22}{rm g cm}^{-3})^{1.36} (T_0/10^7 {rm K})^{-1.9}$, with $rho_0$ and $T_0$ being density and temperature at parsec scale, respectively. We find the formula can accurately predict the luminosity of observed low-luminosity AGNs (with black hole mass $sim 10^8M_{odot}$). This formula can be used in the sub-grid models in large scale cosmological simulations with a black hole mass of $sim 10^8M_{odot}$." @default.
- W2907546655 created "2019-01-11" @default.
- W2907546655 creator A5023653054 @default.
- W2907546655 creator A5070871223 @default.
- W2907546655 date "2019-01-24" @default.
- W2907546655 modified "2023-10-17" @default.
- W2907546655 title "What is the real accretion rate on to a black hole for low-angular-momentum accretion?" @default.
- W2907546655 cites W1525603713 @default.
- W2907546655 cites W1796953235 @default.
- W2907546655 cites W1860554431 @default.
- W2907546655 cites W1882938068 @default.
- W2907546655 cites W1912595871 @default.
- W2907546655 cites W1963968529 @default.
- W2907546655 cites W1965443586 @default.
- W2907546655 cites W1966352397 @default.
- W2907546655 cites W1970101902 @default.
- W2907546655 cites W1974506094 @default.
- W2907546655 cites W1977825268 @default.
- W2907546655 cites W1980547824 @default.
- W2907546655 cites W1982008022 @default.
- W2907546655 cites W1989837678 @default.
- W2907546655 cites W1990558603 @default.
- W2907546655 cites W1997618600 @default.
- W2907546655 cites W2002044265 @default.
- W2907546655 cites W2005943707 @default.
- W2907546655 cites W2006337514 @default.
- W2907546655 cites W2011029460 @default.
- W2907546655 cites W2026942267 @default.
- W2907546655 cites W2027058913 @default.
- W2907546655 cites W2050990527 @default.
- W2907546655 cites W2051864624 @default.
- W2907546655 cites W2059068804 @default.
- W2907546655 cites W2064019680 @default.
- W2907546655 cites W2064038359 @default.
- W2907546655 cites W2066744800 @default.
- W2907546655 cites W2078962574 @default.
- W2907546655 cites W2083233814 @default.
- W2907546655 cites W2093419164 @default.
- W2907546655 cites W2096245028 @default.
- W2907546655 cites W2096336682 @default.
- W2907546655 cites W2098564368 @default.
- W2907546655 cites W2101803055 @default.
- W2907546655 cites W2109074901 @default.
- W2907546655 cites W2109112103 @default.
- W2907546655 cites W2119131940 @default.
- W2907546655 cites W2124562115 @default.
- W2907546655 cites W2133189247 @default.
- W2907546655 cites W2135894620 @default.
- W2907546655 cites W2140768782 @default.
- W2907546655 cites W2147074747 @default.
- W2907546655 cites W2156621121 @default.
- W2907546655 cites W2157463785 @default.
- W2907546655 cites W2166055163 @default.
- W2907546655 cites W2167436765 @default.
- W2907546655 cites W2169224160 @default.
- W2907546655 cites W2204815181 @default.
- W2907546655 cites W2245716257 @default.
- W2907546655 cites W2277240508 @default.
- W2907546655 cites W2296455390 @default.
- W2907546655 cites W2309252738 @default.
- W2907546655 cites W2316380690 @default.
- W2907546655 cites W2468373122 @default.
- W2907546655 cites W2470596549 @default.
- W2907546655 cites W2516938156 @default.
- W2907546655 cites W2539365172 @default.
- W2907546655 cites W2544634293 @default.
- W2907546655 cites W2731210490 @default.
- W2907546655 cites W2782166035 @default.
- W2907546655 cites W2782354216 @default.
- W2907546655 cites W2952743976 @default.
- W2907546655 cites W2962812955 @default.
- W2907546655 cites W2963905230 @default.
- W2907546655 cites W3027862860 @default.
- W2907546655 cites W3098437017 @default.
- W2907546655 cites W3099737653 @default.
- W2907546655 cites W3099961299 @default.
- W2907546655 cites W3099988474 @default.
- W2907546655 cites W3100098924 @default.
- W2907546655 cites W3100679294 @default.
- W2907546655 cites W3100750268 @default.
- W2907546655 cites W3101228549 @default.
- W2907546655 cites W3102216133 @default.
- W2907546655 cites W3102579905 @default.
- W2907546655 cites W3102812179 @default.
- W2907546655 cites W3102937302 @default.
- W2907546655 cites W3104330986 @default.
- W2907546655 cites W3104352546 @default.
- W2907546655 cites W3104354771 @default.
- W2907546655 cites W3104560359 @default.
- W2907546655 cites W3105155648 @default.
- W2907546655 cites W3105235933 @default.
- W2907546655 cites W3105372846 @default.
- W2907546655 cites W3105389673 @default.
- W2907546655 cites W3105447170 @default.
- W2907546655 cites W3105925703 @default.
- W2907546655 cites W3106157876 @default.
- W2907546655 cites W3106239262 @default.
- W2907546655 cites W3121250044 @default.