Loss of star forming gas in SDSS galaxies

Abstract

Using the star formation rates from the SDSS galaxy sample, extracted using the MOPED algorithm, and the empirical Kennicutt law relating star formation rate to gas density, we calculate the time evolution of the gas fraction as a function of the present stellar mass. We show how the gas-to-stars ratio varies with stellar mass, finding good agreement with previous results for smaller samples at the present epoch. For the first time we show clear evidence for progressive gas loss with cosmic epoch, especially in low-mass systems. We find that galaxies with small stellar masses have lost almost all of their cold baryons over time, whereas the most massive galaxies have lost little. Our results also show that the most massive galaxies have evolved faster and turned most of their gas into stars at an early time, thus strongly supporting a downsizing scenario for galaxy evolution.

arXiv comment29 pages, 9 figures, ApJ, accepted

References in corpus (54)

• Stellar population synthesis at the resolution of 2003
• A Universal Density Profile from Hierarchical Clustering
• Galactic Stellar and Substellar Initial Mass Function
• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• The Global Schmidt Law in Star Forming Galaxies
• Dark Matter Substructure in Galactic Halos
• Where are the missing galactic satellites?
• Dwarf Galaxies of the Local Group
• The Formation of Galactic Disks
• Spectroscopic Target Selection in the Sloan Digital Sky Survey: The Main Galaxy Sample
• Color Separation of Galaxy Types in the Sloan Digital Sky Survey Imaging Data
• A Quantitative Comparison of SMC, LMC, and Milky Way UV to NIR Extinction Curves
• The Cosmic Baryon Budget
• The size distribution of galaxies in the Sloan Digital Sky Survey
• A universal angular momentum profile for galactic halos
• Environmental Effects on Late-Type Galaxies in Nearby Clusters
• The Dust Opacity of Star-Forming Galaxies
• Cats and Dogs, Hair and A Hero: A Quintet of New Milky Way Companions
• The Broad-band Optical Properties of Galaxies with Redshifts 0.0 < z < 0.2
• The Cosmic Energy Inventory
• The Stellar, Gas and Dynamical Masses of Star-Forming Galaxies at z~2
• GEMS: Galaxy Evolution from Morphologies and SEDs
• H-alpha Observations of a Large Sample of Galaxies at z~2: Implications for Star Formation in High Redshift Galaxies
• The Fundamental Scaling Relations of Elliptical Galaxies
• New Relationships between Galaxy Properties and Host Halo Mass, and the Role of Feedbacks in Galaxy Formation
• The star formation histories of galaxies in the Sloan Digital Sky Survey
• Star Formation Properties of a Large Sample of Irregular Galaxies
• Stellar Content from high resolution galactic spectra via Maximum A Posteriori
• Massive Lossless Data Compression and Multiple Parameter Estimation from Galaxy Spectra
• Recovering galaxy star formation and metallicity histories from spectra using VESPA
• The Metallicity of Galaxy Disks: Infall versus Outflow
• The Baryon Content of Extremely Low Mass Dwarf Galaxies
• Linking Gas Fractions to Bimodalities in Galaxy Properties
• A Model for Star Formation, Gas Flows and Chemical Evolution in Galaxies at High Redshifts
• An Explanation for the Observed Weak Size Evolution of Disk Galaxies
• Virial masses and the baryon fraction in galaxies
• Galaxy Formation and Evolution: Low Surface Brightness Galaxies
• The baryon fraction of LambdaCDM haloes
• Star Formation and Metallicity History of the SDSS galaxy survey: unlocking the fossil record
• Dissipationless Mergers of Elliptical Galaxies and the Evolution of the Fundamental Plane
• The scale-dependence of relative galaxy bias: encouragement for the halo model description
• Preheating by Previrialization and its Impact on Galaxy Formation
• SNe heating and the chemical evolution of the intra-cluster medium
• Recovering Physical Parameters from Galaxy Spectra Using MOPED
• Detection of HI associated with the Sculptor Dwarf Spheroidal Galaxy
• The evolution of the mass function split by morphology up to redshift 1 in the FORS Deep and the GOODS-S Fields
• Multiple starbursts in Blue Compact Galaxies
• The Sloan Digital Sky Survey: The Cosmic Spectrum and Star-Formation History
• Cosmic metal production and the mean metallicity of the Universe
• Extracting Star Formation Histories from Medium-resolution Galaxy Spectra
• The Cold and Hot Gas Content of Fine-Structure E and S0 Galaxies
• On Dwarf Galaxies as the Source of Intracluster Gas
• Environment and the cosmic evolution of star formation
• Semi-empirical analysis of Sloan Digital Sky Survey galaxies: IV. A nature via nurture scenario for galaxy evolution

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