On the impact of empirical and theoretical star formation laws on galaxy formation

Abstract

We investigate the consequences of applying different star formation laws in the galaxy formation model GALFORM. Three broad star formation laws are implemented: the empirical relations of Kennicutt and Schmidt and Blitz & Rosolowsky and the theoretical model of Krumholz, McKee & Tumlinson. These laws have no free parameters once calibrated against observations of the star formation rate (SFR) and gas surface density in nearby galaxies. We start from published models, and investigate which observables are sensitive to a change in the star formation law, without altering any other model parameters. We show that changing the star formation law (i) does not significantly affect either the star formation history of the universe or the galaxy luminosity functions in the optical and near-IR, due to an effective balance between the quiescent and burst star formation modes; (ii) greatly affects the cold gas contents of galaxies; (iii) changes the location of galaxies in the SFR versus stellar mass plane, so that a second sequence of "passive" galaxies arises, in addition to the known "active" sequence. We show that this plane can be used to discriminate between the star formation laws.

19 pages, 12 figures. Accepted for publication in MNRAS. The main body of the paper is shorter than the original submission and most of details of implementation have been moved to appendices

References in corpus (31)

• Theory of Star Formation
• Star Formation in AEGIS Field Galaxies since z=1.1 : The Dominance of Gradually Declining Star Formation, and the Main Sequence of Star-Forming Galaxies
• The GALEX Ultraviolet Atlas of Nearby Galaxies
• The Role of Pressure in GMC Formation II: The H_2 - Pressure Relation
• Slow Star Formation in Dense Gas: Evidence and Implications
• The stellar mass assembly of galaxies from z=0 to z=4. Analysis of a sample selected in the rest-frame near-infrared with Spitzer
• A primer on hierarchical galaxy formation: the semi-analytical approach
• The Atomic to Molecular Transition in Galaxies. II: HI and H_2 Column Densities
• Science with ASKAP - the Australian Square Kilometre Array Pathfinder
• Generating Dark Matter Halo Merger Trees
• Dynamical Properties of z~2 Star Forming Galaxies and a Universal Star Formation Relation
• Cosmic evolution of the atomic and molecular gas content of galaxies
• The MORGANA model for the rise of galaxies and active nuclei
• The Scale Dependence of the Molecular Gas Depletion Time in M33
• Breakdown of Kennicutt-Schmidt Law at GMC Scales in M33
• Scaling Relations and the Fundamental Line of the Local Group Dwarf Galaxies
• Effects of AGN feedback on LCDM galaxies
• The Atomic to Molecular Transition and its Relation to the Scaling Properties of Galaxy Disks in the Local Universe
• A complete 12CO 2-1 map of M51 with HERA: I. Radial averages of CO, HI, and radio continuum
• The evolution of the specific star formation rate of massive galaxies to z ~ 1.8 in the E-CDFS
• Downsizing by Shutdown in Red Galaxies
• Metal Enrichment of the ICM: a 3-D Picture of Chemical and Dynamical Properties
• Galaxy evolution in the infra-red: comparison of a hierarchical galaxy formation model with SPITZER data
• Global star formation revisited
• MeerKAT Key Project Science, Specifications, and Proposals
• Testing the predictions of the cold dark matter model for the sizes, colours, morphologies and luminosities of galaxies with the SDSS
• The clustering of Ly-alpha emitters in a LambdaCDM Universe
• The relationship between gas content and star formation rate in spiral galaxies. Comparing the local field with the Virgo cluster
• Testing models for molecular gas formation in galaxies: hydrostatic pressure or gas and dust shielding?
• The structural and photometric properties of early-type galaxies in hierarchical models
• Star formation trends in high-redshift galaxy surveys: the elephant or the tail?

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