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相关论文: The Luminosity Function of Galaxies in the Las Cam…

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The galaxy Luminosity Function (LF) has been estimated in the rest frame B luminosity at 0<z<1.25 and at 1700 {\AA} for 2.5<z<4.5 from deep multicolor surveys in the HDF-N, HDF-S, NTT-DF. The results have been compared with a recent version…

天体物理学 · 物理学 2009-11-06 F. Poli , N. Menci , E. Giallongo , A. Fontana , S. Cristiani , S. D' Odorico

We measure the luminosity function of QSOs in the redshift range 3.5 < z < 5.2 for the absolute magnitude interval -21 < M_{145} < -28. Suitable criteria are defined to select faint QSOs in the GOODS fields, checking their effectiveness and…

We have obtained new redshifts for 265 objects in the central 48~$\times$~25~arcmin$^2$ region of the Coma cluster. When supplemented with literature data, our redshift sample is 95~\% complete up to a magnitude b$_{26.5}$=18.0 (the…

天体物理学 · 物理学 2007-05-23 A. Biviano , F. Durret , D. Gerbal , O. Le Fèvre , C. Lobo , A. Mazure , E. Slezak

Using the semi-analytic models based on the Millennium simulation, we trace back the evolution of the luminosity function of galaxies residing in progenitors of groups classified by the magnitude gap at redshift zero. We determine the…

星系天体物理 · 物理学 2014-11-11 G. Gozaliasl , H. G. Khosroshahi , A. A. Dariush , A. Finoguenov , D. M. Z. Jassur , A. Molaeinajad

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…

宇宙学与河外天体物理 · 物理学 2012-03-05 Alvaro S. Iribarrem , Amanda R. Lopes , Marcelo B. Ribeiro , William R. Stoeger

The WISE satellite surveyed the entire sky multiple times in four infrared wavelengths (3.4, 4.6, 12, and $22\,\mu$m; Wright et al. 2010). The unprecedented combination of coverage area and depth gives us the opportunity to measure the…

星系天体物理 · 物理学 2018-10-17 S. E. Lake , E. L. Wright , R. J. Assef , T. H. Jarrett , S. Petty , S. A. Stanford , D. Stern , C. -W. Tsai

We explore the nature of the evolution of faint field galaxies by assuming that the local luminosity function is not well defined. We use a non-negative least squares technique to derive a near optimal set of local luminosity functions for…

天体物理学 · 物理学 2009-10-22 Caryl Gronwall , David C. Koo

We compute the galaxy luminosity function in spectroscopically selected nearby groups and clusters. Our sample comprises 728 systems extracted from the third release of the Sloan Digital Sky Survey in the redshift range $0.03 < z < 0.06$…

天体物理学 · 物理学 2009-11-11 R. E. Gonzalez , M. Lares , D. G. Lambas , C. Valotto

We present the Shapley Optical Survey, a photometric study covering a 2 deg^2 region of the Shapley Supercluster core at z ~ 0.05 in two bands (B and R). The galaxy sample is complete to B=22.5 (>M^*+6, N_{gal}=16588), and R=22.0 (>M^*+7,…

We have re-examined the nature of the cluster galaxy luminosity function using the data from the Edinburgh-Durham Southern Galaxy Catalogue and the Edinburgh-Milano Redshift Survey. We derive a best fit luminosity function over the range…

天体物理学 · 物理学 2015-06-24 S. L. Lumsden , C. A. Collins , R. C. Nichol , V. R. Eke , L. Guzzo

We measure the faint end slope of the galaxy luminosity function (LF) for cluster galaxies at 1<z<1.5 using Spitzer IRAC data. We investigate whether this slope, alpha, differs from that of the field LF at these redshifts, and with the…

We have measured the 3.6 micron luminosity evolution of about 1000 galaxies in 32 clusters at 0.2<z<1.25, without any a priori assumption about luminosity evolution, i.e. in a logically rigorous way. We find that the luminosity of our…

天体物理学 · 物理学 2009-11-11 S. Andreon

We present the results of a new study of the K-band galaxy luminosity function (KLF) at redshifts z<3.75, based on a nested combination of the UltraVISTA, CANDELS and HUDF surveys. The large dynamic range in luminosity spanned by this new…

We present a statistical study of the luminosity functions of galaxies surrounding luminous red galaxies (LRGs) at average redshifts <z>=0.34 and <z>=0.65. The luminosity functions are derived by extracting source photometry around more…

AIMS: We have compiled one of the largest normal-galaxy samples ever to probe X-ray luminosity function evolution separately for early and late-type systems. METHODS: We selected 207 normal galaxies up to redshift z~1.4, with data from four…

天体物理学 · 物理学 2009-11-13 P. Tzanavaris , I. Georgantopoulos

We present the rest-frame V-band luminosity function (LF) of galaxies at 0.4<z<4.0, measured from a near-infrared selected sample constructed from the NMBS, the FIRES, the FIREWORKS, and the ultra-deep NICMOS and WFC3 observations in the…

宇宙学与河外天体物理 · 物理学 2015-06-04 Danilo Marchesini , Mauro Stefanon , Gabriel B. Brammer , Katherine E. Whitaker

Using the multislit LDSS-2 spectrograph on the {\it William Herschel Telescope} we have completed a redshift survey in the magnitude range $22.5<B< 24$ which has produced 73 redshifts representing a 73\% complete sample uniformly-selected…

天体物理学 · 物理学 2015-06-24 K. Glazebrook , R. Ellis , M. Colless , T. Broadhurst , J. Allington-Smith , N. Tanvir

A complete sample of 659 field galaxies with 17.0$<$U$\leq$21.1, each with U-B-V-R-I7500-I8600 photometry, has been selected from a deep field survey which covers 0.83 deg$^2$ along six lines of sight (Hall et al. 1996a). Each galaxy's…

天体物理学 · 物理学 2009-10-30 Charles T. Liu , Richard F. Green , Patrick B. Hall , Patrick S. Osmer

The determination of the galaxy luminosity function is an active and fundamental field in observational cosmology. In this paper we propose a cost effective way of measuring galaxy luminosity functions at faint magnitudes. Our technique…

天体物理学 · 物理学 2009-10-28 M. U. SubbaRao , A. J. Connolly , A. S. Szalay , D. C. Koo