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We use the 2dF Galaxy Redshift Survey to measure the dependence of the bJ-band galaxy luminosity function on large-scale environment, defined by density contrast in spheres of radius 8h-1Mpc, and on spectral type, determined from principal…

We investigate the dependence of galaxy clustering on luminosity and spectral type using the 2dF Galaxy Redshift Survey (2dFGRS). Spectral types are assigned using the principal component analysis of Madgwick et al. We divide the sample…

We present the composite luminosity function (hereafter LF) of galaxies for 81 Abell clusters studied in our survey of the Northern Hemisphere, using DPOSS data processed by the CRoNaRio collaboration. The derived LF is very accurate due to…

Astrophysics · Physics 2007-05-23 S. Piranomonte , M. Paolillo , S. Andreon , G. Longo , E. Puddu , R. Scaramella , R. Gal , S. G. Djorgovski

Using galaxy sample observed by the BATC large-field multi-color sky survey and galaxy data of SDSS in the overlapped fields, we study the dependence of the restframe $r$-band galaxy luminosity function on redshift and on large-scale…

Astrophysics · Physics 2011-02-11 Lifang Xia , Xu Zhou , Yanbin Yang , Jun Ma , Zhaoji Jiang

We combine photometry and lens modeling to study the properties of 17 gravitational lens galaxies between z=0.1 and 1. Most of the lens galaxies are passively evolving early-type galaxies, with a few spirals. The colors, scale lengths, and…

Astrophysics · Physics 2010-03-01 C. R. Keeton , C. S. Kochanek , E. E. Falco

We perform a comparative analysis of the properties of galaxies infalling into groups classifying them accordingly to whether they are: falling along filamentary structures; or they are falling isotropically. For this purpose, we identify…

Astrophysics of Galaxies · Physics 2015-11-11 Hector J. Martinez , Hernan Muriel , Valeria Coenda

We study the occupation statistics of galaxies in dark matter haloes using galaxy groups identified from the 2-degree Field Galaxy Redshift Survey with the halo-based group finder of Yang et al. The occupation distribution is considered…

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

The bright end of the rest-frame UV luminosity function (UVLF) of high-redshift galaxies is modified by gravitational lensing magnification bias. Motivated by recent discoveries of very high-z galaxies with JWST, we study the dependence of…

Cosmology and Nongalactic Astrophysics · Physics 2023-05-10 Giovanni Ferrami , J. Stuart B. Wyithe

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

Using conditional luminosity functions (CLFs) which encode the luminosity distribution of galaxies as a function of halo mass, we construct a halo model of IRAS galaxies selected at 60 micron. An abundance matching technique is used to link…

Cosmology and Nongalactic Astrophysics · Physics 2010-10-27 Lingyu Wang , Asantha Cooray , Seb Oliver

Based on GALEX and IRAS/Spitzer datasets, we have found that both FUV and FIR luminosity functions (LFs) show a strong evolution from z=0 to z=1, but the FIR LF evolves much stronger than the FUV one. Consequently, the FIR/FUV luminosity…

Astrophysics · Physics 2007-05-23 Tsutomu T. Takeuchi , Veronique Buat , Denis Burgarella

We constrain the evolution of the galaxy mass and luminosity functions from the analysis of (public) multi-wavelength data in the Chandra Deep Field South (CDFS) area, obtained from the GOODS and other projects, and including very deep…

We present and discuss optical measurements of the faint end of the galaxy luminosity function down to M_R = -10 in five different local environments of varying galaxy density and morphological content. The environments we studied, in order…

Astrophysics · Physics 2008-11-26 Neil Trentham , R. Brent Tully

[ABRIDGED] I perform a detailed comparison of the shape of the optical luminosity functions as a function of galaxy class and filter, which have been obtained from redshift surveys with an effective depth ranging from z~0.01 to z~0.6. This…

Astrophysics · Physics 2009-11-10 Valerie de Lapparent

We derive NUV luminosity functions for 6471 NUV detected galaxies in 28 $0.02 < z < 0.08$ clusters and consider their dependence on cluster properties. We consider optically red and blue galaxies and explore how their NUV LFs vary in…

Astrophysics of Galaxies · Physics 2018-11-07 Roberto De Propris , Malcolm Bremer , Steven Phillipps

Compact groups of galaxies are devised as extreme environments where interactions may drive galaxy evolution. In this work, we analysed whether the luminosities of galaxies inhabiting compact groups differ from those of galaxies in loose…

Astrophysics of Galaxies · Physics 2022-05-25 Ariel Zandivarez , Eugenia Diaz-Gimenez , Antonela Taverna

Using a sample of 472 local Universe (z<0.06) galaxies in the stellar mass range 10.25 < log M*/M_sun < 10.75, we explore the variation in galaxy structure as a function of morphology and galaxy colour. Our sample of galaxies is sub-divided…

We use a set of twelve high-resolution N-body/hydrodynamical simulations in the $\Lambda$CDM cosmology to investigate the origin and formation rate of fossil groups (FGs), which are X-ray bright galaxy groups dominated by a large elliptical…

This paper discusses a connection between the relativistic number counts of cosmological sources and the observed galaxy luminosity function (LF). Observational differential number densities are defined and obtained from published LF data…

Cosmology and Nongalactic Astrophysics · Physics 2023-01-30 Alvaro S. Iribarrem , Marcelo B. Ribeiro , William R. Stoeger

Recent galaxy formation models successfully reproduce the local luminosity function (LF) of galaxies by invoking mechanisms to suppress star formation in low- and high-mass galaxies. As these models are optimized to fit the LF at low…

Astrophysics · Physics 2008-01-07 Danilo Marchesini , Pieter van Dokkum