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Paper: Midplane Gas Density and the Schmidt Law
Volume: 396, Formation and Evolution of Galaxy Disks
Page: 169
Authors: Zasov, A.V.; Abramova, O.V.
Abstract: The thickness of isothermal gaseous layers and their midplane volume densities ρgas(R) were calculated for several spiral and low surface brightness galaxies by solving the self-consistent equilibrium equations for gaseous disks embedded into a stellar one. The self-gravity of the gas and influence of dark halo on the disk thickness were taken into account. The resulting mid-plane volume densities of spiral galaxies were compared with the azimuthally averaged star formation rate (SFR) to verify the feasibility and universality of the Schmidt law SFR∼ ρngas.
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