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- W4280512491 endingPage "A152" @default.
- W4280512491 startingPage "A152" @default.
- W4280512491 abstract "The ISM is a turbulent, multi-phase, and multi-scale medium following scaling relations. Analytical models of galactic gaseous disks need to take into account the multi-scale and multi-phase nature of the interstellar medium. They can be described as clumpy star-forming accretion disks in vertical hydrostatic equilibrium, with the mid-plane pressure balancing the gravity of the gaseous and stellar disk. ISM turbulence is taken into account by applying Galactic scaling relations to the cold atomic and molecular gas phases. Turbulence is maintained through energy injection by supernovae. With the determination of the gas mass fraction at a given spatial scale, the equilibrium gas temperature between turbulent heating and line cooling, the molecular abundances, and the molecular line emission can be calculated. The resulting model radial profiles of IR, H{sc i}, CO, HCN, and HCO$^+$ emission are compared to THINGS, HERACLES, EMPIRE, SINGS, and GALEX observations of 17 local spiral galaxies. The Toomre parameter, which measures the stability against star formation (cloud collapse), exceeds unity in the inner disk of a significant number of galaxies. In two galaxies it also exceeds unity in the outer disk. Therefore, in spiral galaxies $Q_{rm tot}=1$ is not ubiquitous. The model gas velocity dispersion is consistent with the observed H{sc i} velocity dispersion where available. Within our model HCN and HCO$^+$ is already detectable in relatively low-density gas ($sim 1000$~cm$^{-3}$). CO and HCN conversion factors and molecular gas depletion time were derived. Both conversion factors are consistent with values found in the literature. Whereas in the massive galaxies the viscous timescale greatly exceeds the star formation timescale, the viscous timescale is smaller than the star formation timescale within $rm{R}~sim~2~rm{R}_{rm d}$, the disk scale length, in the low-mass galaxies." @default.
- W4280512491 created "2022-05-22" @default.
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- W4280512491 creator A5091582230 @default.
- W4280512491 date "2022-07-01" @default.
- W4280512491 modified "2023-09-27" @default.
- W4280512491 title "Predicting HCN, HCO<sup>+</sup>, multi-transition CO, and dust emission of star-forming galaxies" @default.
- W4280512491 cites W1602534146 @default.
- W4280512491 cites W1699649029 @default.
- W4280512491 cites W1924246703 @default.
- W4280512491 cites W1934387688 @default.
- W4280512491 cites W1964344398 @default.
- W4280512491 cites W1968137411 @default.
- W4280512491 cites W1971413762 @default.
- W4280512491 cites W1975524662 @default.
- W4280512491 cites W1979348280 @default.
- W4280512491 cites W1982453941 @default.
- W4280512491 cites W1983324871 @default.
- W4280512491 cites W1991391334 @default.
- W4280512491 cites W1999538730 @default.
- W4280512491 cites W1999602769 @default.
- W4280512491 cites W2000563534 @default.
- W4280512491 cites W2004052728 @default.
- W4280512491 cites W2006878995 @default.
- W4280512491 cites W2007325934 @default.
- W4280512491 cites W2014555677 @default.
- W4280512491 cites W2020814246 @default.
- W4280512491 cites W2021381561 @default.
- W4280512491 cites W2032557164 @default.
- W4280512491 cites W2034442266 @default.
- W4280512491 cites W2034608771 @default.
- W4280512491 cites W2035198704 @default.
- W4280512491 cites W2035547408 @default.
- W4280512491 cites W2037831611 @default.
- W4280512491 cites W2041253969 @default.
- W4280512491 cites W2045759471 @default.
- W4280512491 cites W2048274049 @default.
- W4280512491 cites W2050326264 @default.
- W4280512491 cites W2051762527 @default.
- W4280512491 cites W2055292832 @default.
- W4280512491 cites W2056918473 @default.
- W4280512491 cites W2063969444 @default.
- W4280512491 cites W2069524830 @default.
- W4280512491 cites W2074529843 @default.
- W4280512491 cites W2077017611 @default.
- W4280512491 cites W2079592158 @default.
- W4280512491 cites W2081402642 @default.
- W4280512491 cites W2086140797 @default.
- W4280512491 cites W2088536005 @default.
- W4280512491 cites W2095322070 @default.
- W4280512491 cites W2105626584 @default.
- W4280512491 cites W2106408197 @default.
- W4280512491 cites W2112459144 @default.
- W4280512491 cites W2116466430 @default.
- W4280512491 cites W2128294460 @default.
- W4280512491 cites W2131287406 @default.
- W4280512491 cites W2136336431 @default.
- W4280512491 cites W2140888726 @default.
- W4280512491 cites W2151962171 @default.
- W4280512491 cites W2155421027 @default.
- W4280512491 cites W2165760757 @default.
- W4280512491 cites W2165990266 @default.
- W4280512491 cites W2166023823 @default.
- W4280512491 cites W2171942739 @default.
- W4280512491 cites W2190803439 @default.
- W4280512491 cites W2226883239 @default.
- W4280512491 cites W2607823398 @default.
- W4280512491 cites W2787157956 @default.
- W4280512491 cites W2965165271 @default.
- W4280512491 cites W2995314660 @default.
- W4280512491 cites W2995509241 @default.
- W4280512491 cites W3021423592 @default.
- W4280512491 cites W3080803408 @default.
- W4280512491 cites W3098197335 @default.
- W4280512491 cites W3098935317 @default.
- W4280512491 cites W3099055451 @default.
- W4280512491 cites W3099196797 @default.
- W4280512491 cites W3099388895 @default.
- W4280512491 cites W3099760860 @default.
- W4280512491 cites W3099768924 @default.
- W4280512491 cites W3101060846 @default.
- W4280512491 cites W3101140577 @default.
- W4280512491 cites W3101272517 @default.
- W4280512491 cites W3102422828 @default.
- W4280512491 cites W3102529632 @default.
- W4280512491 cites W3102676308 @default.
- W4280512491 cites W3103868583 @default.
- W4280512491 cites W3104211388 @default.
- W4280512491 cites W3104813601 @default.
- W4280512491 cites W3104914725 @default.
- W4280512491 cites W3105310028 @default.
- W4280512491 cites W3105372910 @default.
- W4280512491 cites W3105658483 @default.
- W4280512491 cites W3105695295 @default.
- W4280512491 cites W3106212719 @default.