The Global Schmidt law in star forming galaxies
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In this paper, the Schmidt law was used to model the global star formation law over the full range of gas densities and star formation rates observed in galaxies, and the results showed that the SFR scales with the ratio of the gas density to the average orbital timescale.Abstract:
Measurements of Hα, H I, and CO distributions in 61 normal spiral galaxies are combined with published far-infrared and CO observations of 36 infrared-selected starburst galaxies, in order to study the form of the global star formation law over the full range of gas densities and star formation rates (SFRs) observed in galaxies. The disk-averaged SFRs and gas densities for the combined sample are well represented by a Schmidt law with index N = 1.4 ± 0.15. The Schmidt law provides a surprisingly tight parametrization of the global star formation law, extending over several orders of magnitude in SFR and gas density. An alternative formulation of the star formation law, in which the SFR is presumed to scale with the ratio of the gas density to the average orbital timescale, also fits the data very well. Both descriptions provide potentially useful "recipes" for modeling the SFR in numerical simulations of galaxy formation and evolution.read more
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A general theory of turbulence-regulated star formation, from spirals to ultraluminous infrared galaxies
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Cool Gas in High-Redshift Galaxies
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The Calibration of Mid-Infrared Star Formation Rate Indicators
Daniela Calzetti,Daniela Calzetti,Robert C. Kennicutt,C. W. Engelbracht,Claus Leitherer,Bruce T. Draine,Lisa J. Kewley,John Moustakas,M. Sosey,Daniel A. Dale,Karl D. Gordon,George Helou,David Hollenbach,Lee Armus,George J. Bendo,Caroline Bot,Brent A. Buckalew,Thomas H. Jarrett,Aigen Li,Martin Meyer,Eric J. Murphy,Moire K. M. Prescott,Michael W. Regan,George H. Rieke,Helene Roussel,Kartik Sheth,J. D. T. Smith,Michele D. Thornley,Fabian Walter +28 more
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A study of the gas–star formation relation over cosmic time
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PHIBSS: MOLECULAR GAS CONTENT AND SCALING RELATIONS IN z ∼ 1-3 MASSIVE, MAIN-SEQUENCE STAR-FORMING GALAXIES*
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