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Related papers: Galaxy Luminosities in 2PIGG groups

200 papers

We have computed the luminosity function for 389 field galaxies from the Canadian Network for Observational Cosmology cluster redshift survey (CNOC1), over redshifts z = 0.2-0.6. We find Schechter parameters M^* - 5 log h = -19.6 \pm 0.3…

Astrophysics · Physics 2009-10-28 H. Lin , H. K. C. Yee , R. G. Carlberg , E. Ellingson

Cosmological (LambdaCDM) TreeSPH simulations of the formation and evolution of galaxy groups and clusters have been performed. The simulations invoke star formation, chemical evolution with non-instantaneous recycling, metal dependent…

Astrophysics · Physics 2009-11-10 Alessio D. Romeo , Laura Portinari , Jesper Sommer-Larsen

We analyze the morphological properties of a large sample of 1503 70 micron selected galaxies in the COSMOS field spanning the redshift range 0.01<z< 3.5 with a median redshift of 0.5 and an infrared luminosity range of 10^8<L_IR<10^14L_sun…

We have imaged $\sim$ 1 deg$^{2}$ in the V-band in the direction of the Hercules Cluster (Abell 2151). The data are used to compute for the first time the luminosity function (LF) of galaxies in the cluster down to the dwarf regime…

We have obtained $H_{\alpha}$ fluxes and luminosities for a sample of 95 accordant galaxies from observations of 31 Hickson Compact Groups (HCGs) in the North hemisphere. This sample is the largest $H_{\alpha}$ selected catalogue of…

Astrophysics · Physics 2009-10-31 P. Severgnini , P. Saracco

We select a close "major-merger candidate" galaxy pair sample in order to calculate the K_{s} luminosity function (LF) and pair fraction representative of the merger/interaction component of galaxy evolution in the local universe. The pair…

Cosmology and Nongalactic Astrophysics · Physics 2009-01-29 Donovan L. Domingue , C. K. Xu , T. H. Jarrett , Y. Cheng

A basic assumption in current halo occupation model is that the properties of a galaxy depend only on the mass of its dark matter halo. An important consequence of this is that the segregation of the galaxy population by large-scale…

Astrophysics · Physics 2009-11-10 H. J. Mo , Xiaohu Yang , Frank C. van den Bosch , Y. P Jing

We investigate the dependence of the galaxy infrared luminosity function (LF) and the associated stellar mass function (SMF) on environment and spectral type using photometry from the Two Micron All Sky Survey and redshifts from the Las…

Astrophysics · Physics 2009-11-06 Michael Balogh , Daniel Christlein , Ann Zabludoff , Dennis Zaritsky

Bivariate luminosity functions (LFs) are computed for galaxies in the New York Value-Added Galaxy Catalogue, based on the Sloan Digital Sky Survey Data Release 4. The galaxy properties investigated are the morphological type, inverse…

Astrophysics · Physics 2009-11-11 Nicholas M Ball , Jon Loveday , Robert J Brunner , Ivan K Baldry , Jon Brinkmann

How does the clustering of galaxies depend on their inner properties like morphological type and luminosity? We address this question in the mathematical framework of marked point processes and clarify the notion of luminosity and…

Astrophysics · Physics 2009-10-31 Claus Beisbart , Martin Kerscher

We present results from a study of the globular cluster luminosity function (GCLF) in a sample of 89 early-type galaxies observed as part of the ACS Virgo Cluster Survey. Using a Gaussian parametrization of the GCLF, we find a highly…

We present clustering measurements for samples of galaxies selected by morphological type and luminosity from the recently completed Stromlo-APM Redshift Survey. Early type galaxies are clustered more strongly by a factor 3.5--5.5, than…

Astrophysics · Physics 2009-10-22 J. Loveday , S. J. Maddox , G. Efstathiou , B. A. Peterson

We measure the evolution of the galaxy Luminosity Function as a function of large-scale environment up to z=1.5 from the VIMOS-VLT Deep Survey (VVDS) first epoch data. The 3D galaxy density field is reconstructed using a sample of 6582…

We use our catalog of photometric redshifts in the Hubble Deep Field (HDF) to estimate the Luminosity Function (LF) of galaxies up to z=2. Using the obtained LF and a relationship between luminosity and halo size, we calculate the expected…

Astrophysics · Physics 2007-05-23 A. Fernandez-Soto , K. M. Lanzetta , A. Yahil , H. -W. Chen

We investigate the development of the red sequence (RS) of cluster galaxies by using a semi-analytic model of galaxy formation. Results show good agreement between the general trend of the simulated RS and the observed relation in…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 Noelia Jiménez , Sofía A. Cora , Lilia P. Bassino , Tomás E. Tecce , Analía V. Smith Castelli

We study the luminosity function and clustering properties of subsamples of local galaxies selected from the Stromlo-APM survey by the rest-frame equivalent widths of their Halpha and Oii emission lines. The b_J luminosity function of…

Astrophysics · Physics 2009-10-31 J. Loveday , L. Tresse , S. Maddox

Using semi-analytic models of galaxy formation set within the Cold Dark Matter (CDM) merging hierarchy, we investigate several scenarios for the nature of the high-redshift ($z \ga 2$) Lyman-break galaxies (LBGs). We consider a…

Astrophysics · Physics 2007-05-23 R. S. Somerville , J. R. Primack , S. M. Faber

We study the relationships between galaxy total luminosity (M_g), morphology, color and environment as a function of redshift. We use a magnitude-limited sample of 65,624 galaxies in the redshift range 0<z<1.3 taken from one of the…

Astrophysics · Physics 2016-08-16 Martijn Nuijten , Luc simard , Stephen Gwyn , Huub Röttgering

The CNOC2 Field Galaxy Redshift Survey presently contains some 5000 galaxy redshifts, plus extensive UBgRI photometry, and is the largest galaxy sample at moderate redshifts 0.1 < z < 0.6. Here we present some preliminary results on the…