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Galaxy Groups in the SDSS DR4. I. The Catalog and Basic Properties
We use a modified version of the halo-based group finder developed by Yang et al. to select galaxy groups from the Sloan Digital Sky Survey (SDSS DR4). In the first step, a combination of two methodsExpand
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COLD GASS, an IRAM legacy survey of molecular gas in massive galaxies – I. Relations between H2, H i, stellar content and structural properties
We are conducting COLD GASS, a legacy survey for molecular gas in nearby galaxies. Using the IRAM 30-m telescope, we measure the CO(1-0) line in a sample of similar to 350 nearby (D-L similar orExpand
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How do galaxies populate dark matter haloes
For any assumed standard stellar initial mass function, the Sloan Digital Sky Survey (SDSS) gives a precise determination of the abundance of galaxies as a function of their stellar mass over theExpand
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The distribution of stellar mass in the low‐redshift Universe
We use a complete and uniform sample of almost half a million galaxies from the Sloan Digital Sky Survey to characterize the distribution of stellar mass in the low-redshift Universe. GalaxyExpand
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COLD GASS, an IRAM legacy survey of molecular gas in massive galaxies - II. The non-universality of the molecular gas depletion time-scale
We study the relation between molecular gas and star formation in a volume-limited sample of 222 galaxies from the COLD GASS survey, with measurements of the CO(1–0) line from the IRAM 30-mExpand
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A Fitting Formula for the Merger Timescale of Galaxies in Hierarchical Clustering
We study galaxy mergers using a high-resolution cosmological hydro/N-body simulation with star formation and compare the measured merger timescales with theoretical predictions based on theExpand
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Electroweak measurements in electron positron collisions at W-boson-pair energies at LEP
Electroweak measurements performed with data taken at the electron-positron collider LEP at CERN from 1995 to 2000 are reported. The combined data set considered in this report corresponds to a totalExpand
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The dependence of clustering on galaxy properties
We use a sample of similar to 200 000 galaxies drawn from the Sloan Digital Sky Survey (SDSS) with 0.01 5 h(-1) Mpc). This large-scale clustering dependence is not seen for the parameters C or mu*.Expand
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A Re-examination of Galactic Conformity and a Comparison with Semi-analytic Models of Galaxy Formation
The observed correlation between star-formation in central galaxies and in their neighbours (a phenomenon dubbed “galactic conformity”) is in need of a convincing physical explanation. To gainExpand
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The clustering of narrow-line AGN in the local universe
We have analysed the clustering of ∼90 000 narrow-line active galactic nuclei (AGN) drawn from the Data Release 4 (DR4) of the Sloan Digital Sky Survey. Our analysis addresses the followingExpand
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