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Related papers: Photometric redshifts as a tool to study the Coma …

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We present a deep wide-field narrow-band imaging survey of the local rich and dynamically relaxed Coma cluster of galaxies, carried out with the Wide Field Camera at the Isaac Newton Telescope. The survey covers a region of about 2.5 sq.…

Astrophysics of Galaxies · Physics 2025-12-23 Sarah E. Kay , Ehsan Kourkchi , A. Molaeinezhad , H. G. Khosroshahi , M. Mouhcine , P. A. James , D. Carter

This paper studies the connection between the relativistic number density of galaxies down the past light cone in a Friedmann-Lemaitre-Robertson-Walker spacetime with non-vanishing cosmological constant and the galaxy luminosity function…

Cosmology and Nongalactic Astrophysics · Physics 2012-03-05 Alvaro S. Iribarrem , Amanda R. Lopes , Marcelo B. Ribeiro , William R. Stoeger

Determining the redshift distribution $n(z)$ of galaxy samples is essential for several cosmological probes including weak lensing. For imaging surveys, this is usually done using photometric redshifts estimated on an object-by-object…

Cosmology and Nongalactic Astrophysics · Physics 2017-08-31 Jörg Herbel , Tomasz Kacprzak , Adam Amara , Alexandre Refregier , Claudio Bruderer , Andrina Nicola

Recent extensive, multi-color deep surveys of galaxies open a possibility to get observational estimation of sizes for the largest structures in the Universe. Photometric redshift accuracy (about 0.03(1+z)) allows directly study clustering…

Astrophysics · Physics 2008-09-16 N. V. Nabokov , Yu. V. Baryshev

We present a homogeneous catalog of 275 large (effective radius $\gtrsim$ 5.3 arcsec) ultra-diffuse galaxy (UDG) candidates lying within an $\approx$ 290 square degree region surrounding the Coma cluster. The catalog results from our…

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 have measured redshifts and Kron-Cousins R-band magnitudes for a sample of galaxies in the poor cluster AWM 7. We have measured redshifts for 172 galaxies; 106 of these are cluster members. We determine the luminosity function from a…

Astrophysics · Physics 2009-10-30 Daniel Koranyi , Margaret J. Geller , Joseph J. Mohr , Gary Wegner

We summarize the results from analyzing six clusters of galaxies at 0.14 < z < 0.40 observed with the Hubble Space Telescope Advanced Camera for Surveys. We derive deep composite luminosity functions in B,g,V,r,i and z down to an absolute…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Daniel Harsono , Roberto De Propris

We study the luminosity function of galaxies in Hickson groups using our recent redshift survey of galaxies in and around 17 of these groups. We find that the galaxies in these regions have a luminosity function with M* = -19.5 + 5 log h,…

Astrophysics · Physics 2007-05-23 Stephen E. Zepf , Reinaldo R. de Carvalho , Andre L. B. Ribeiro

We have carried out a study of the luminosity function (henceforth LF) of galaxies in the region of the HDF-North using our very complete redshift catalog. We solve for the LF at four rest frame wavelengths from 0.24 to 2.2mu. We find that…

Astrophysics · Physics 2009-11-06 Judith G. Cohen

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

We obtain R-band photometry for galaxies in six nearby poor groups for which we have spectroscopic data, including 328 new galaxy velocities. For the five groups with luminous X-ray halos, the composite group galaxy luminosity function…

Astrophysics · Physics 2009-10-31 Ann I. Zabludoff , John S. Mulchaey

In this paper we apply our Monte-Carlo photometric-redshift technique, introduced in paper I (Hughes et al. 2002), to the multi-wavelength data available for 77 galaxies selected at 850um and 1.25mm. We calculate a probability distribution…

Astrophysics · Physics 2009-11-07 I. Aretxaga , D. H. Hughes , E. L. Chapin , E. Gaztanaga , J. S. Dunlop , R. Ivison

Detection and photometry of sources in the U_n, G, R, and K_s bands in a 9x9 arcmin^2 region of the sky, centered on the Hubble Deep Field, are described. The data permit construction of complete photometric catalogs to roughly U_n=25,…

When the first galaxies formed and starlight escaped into the intergalactic medium to reionize it, galaxy formation and reionization were both highly inhomogeneous in time and space, and fully-coupled by mutual feedback. To show how this…

We present extensive and accurate photometry in the near-infrared H band of a complete sample of objects in an area of about 400 arcmin2 toward the Coma cluster of galaxies. The sample, including about 300 objects, is complete down to H~17…

Astrophysics · Physics 2009-10-31 S. Andreon , R. Pello , E. Davoust , R. Dominguez , P. Poulain

We describe the 2dF Galaxy Redshift Survey (2dFGRS), and the current status of the observations. In this exploratory paper, we apply a Principal Component Analysis to a preliminary sample of 5869 galaxy spectra and use the two most…

We model fluctuations in the Cosmic Infrared Background (CIB) arising from known galaxy populations using 233 measured UV, optical and NIR luminosity functions (LF) from a variety of surveys spanning a wide range of redshifts. We compare…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 Kari Helgason , Massimo Ricotti , Alexander Kashlinsky

We present the results obtained on the color distribution of galaxies in the CFHTLS-Deep Field Survey Data Release 03. Photometric redshifts have been computed using a standard SED fitting approach, with a new version of the public code…

Astrophysics · Physics 2007-05-23 F. Ienna , R. Pello

Based on an extensive redshift survey for galaxy cluster Abell 2029 and Coma, we measure the luminosity functions (LFs), stellar mass functions (SMFs) for the entire cluster member galaxies. Most importantly, we measure the velocity…

Astrophysics of Galaxies · Physics 2017-04-05 Jubee Sohn , Margaret J. Geller , H. Jabran Zahid , Daniel G. Fabricant , Antonaldo Diaferio , Kenneth J. Rines