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Related papers: Galaxy bimodality versus stellar mass and environm…

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We have explored the redshift evolution of the luminosity function of red and blue galaxies up to $z=3.5$. This was possible joining a deep I band composite galaxy sample, which includes the spectroscopic K20 sample and the HDFs samples,…

We have modelled the light distribution in 10095 galaxies from the Millennium Galaxy Catalogue (MGC), providing publically available structural catalogues for a large, representative sample of galaxies in the local Universe. Three different…

The properties of the stellar populations in a galaxy are known to correlate with the amount and the distribution of stellar mass. We take advantage of the maps of light-weighted mean stellar age Agewr and metallicity Z*wr for a sample of…

Astrophysics of Galaxies · Physics 2022-02-23 Stefano Zibetti , Anna R. Gallazzi

The properties of galaxies are strongly correlated with their environment, with red galaxies dominating galaxy clusters and blue galaxies dominating the general field. However, not all field galaxies are young: studies of the colors, line…

Astrophysics · Physics 2007-05-23 Pieter van Dokkum , Ryan Quadri

We use the SAMI galaxy survey to study the the kinematic morphology-density relation: the observation that the fraction of slow rotator galaxies increases towards dense environments. We build a logistic regression model to quantitatively…

The properties of galaxies in the local universe have been shown to depend upon their environment. Future large scale photometric surveys such as DES and Euclid will be vital to gain insight into the evolution of galaxy properties and the…

Astrophysics of Galaxies · Physics 2015-08-06 James Etherington , Daniel Thomas

We present measurements of the higher-order clustering of red and blue galaxies as a function of scale and luminosity made from the two-degree field galaxy redshift survey (2dFGRS). We use a counts-in-cells analysis to estimate the volume…

Astrophysics · Physics 2008-11-26 Darren J. Croton , Peder Norberg , Enrique Gaztanaga , Carlton M. Baugh

abridged: We use a complete sample of about 140,000 galaxies from the Sloan Digital Sky Survey (SDSS) to study the size distribution of galaxies and its dependence on their luminosity, stellar mass, and morphological type. The large SDSS…

It is generally assumed that galaxies are a bimodal population in both star formation and structure: star-forming galaxies are disks, while passive galaxies host large bulges or are entirely spheroidal. Here, we test this scenario by…

Astrophysics of Galaxies · Physics 2022-10-12 A. Fraser-McKelvie , L. Cortese

We derive the number density evolution of massive field galaxies in the redshift range 0.4 < z < 1.2 using the K-band selected field galaxy sample from the Munich Near-IR Cluster Survey (MUNICS). We rely on spectroscopically calibrated…

Astrophysics · Physics 2009-11-07 N. Drory , R. Bender , J. Snigula , G. Feulner , U. Hopp , C. Maraston , G. J. Hill , C. Mendes de Oliveira

Globular cluster systems in most large galaxies display bimodal color and metallicity distributions, which are frequently interpreted as indicating two distinct modes of cluster formation. The metal-rich (red) and metal-poor (blue) clusters…

Astrophysics of Galaxies · Physics 2015-05-14 Oleg Y. Gnedin

The luminosity function of galaxies is derived from a cosmological hydrodynamic simulation of a Lambda cold dark matter (CDM) universe with the aid of a stellar population synthesis model. At z=0, the resulting B band luminosity function…

Astrophysics · Physics 2009-11-06 Kentaro Nagamine , Masataka Fukugita , Renyue Cen , Jeremiah P. Ostriker

We use a semi-analytic model of galaxy formation to study signatures of large-scale modulations in the star formation (SF) activity in galaxies. In order to do this we carefully define local and global estimators of the density around…

Astrophysics · Physics 2015-05-13 R. E. Gonzalez , N. D. Padilla

Using a sample of ~28,000 sources selected at 3.6-4.5 microns with Spitzer observations of the HDF-N, the CDF-S, and the Lockman Hole (surveyed area: ~664 arcmin^2), we study the evolution of the stellar mass content of the Universe at…

This is the third paper of a series where we study the stellar population gradients (SP; ages, metallicities, $\alpha$-element abundance ratios and stellar initial mass functions) of early type galaxies (ETGs) at $z\le 0.08$ from the…

Astrophysics of Galaxies · Physics 2020-05-27 H. Domínguez Sánchez , M. Bernardi , F. Nikakhtar , B. Margalef-Bentabol , R. K. Sheth

In this study, we use the luminous volume-limited samples obtained from the twelfth release of Sloan Digital Sky Survey data and mergers from Galaxy Zoo Project to investigate the influence of group richness in shaping galaxy properties'…

Astrophysics of Galaxies · Physics 2025-09-26 Pius Privatus , Umananda Dev Goswami

We compare predictions of a number of empirical models and numerical simulations of galaxy formation to the conditional stellar mass functions (CSMF)of galaxies in groups of different masses obtained recently by Lan et al. to test how well…

Astrophysics of Galaxies · Physics 2016-10-12 Seunghwan Lim , Houjun Mo , Ting-Wen Lan , Brice Ménard

In this empirical work, we aim to quantify the systematic uncertainties in stellar mass $(M_\star)$ estimates made from spectral energy distribution (SED) fitting through stellar population synthesis (SPS), for galaxies in the local…

We present a comparison between the observed galaxy stellar mass function and the one predicted from the De Lucia & Blaizot (2007) semi-analytic model applied to the Millennium Simulation, for cluster satellites and galaxies in the field…

Astrophysics of Galaxies · Physics 2015-06-19 B. Vulcani , G. De Lucia , B. M. Poggianti , K. Bundy , S. More , R. Calvi

We develop a new empirical methodology to study the relation between the stellar mass of galaxies and the mass of their host subhaloes. Our approach is similar to abundance matching, and is based on assigning a stellar mass to each subhalo…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Eyal Neistein , Cheng Li , Sadegh Khochfar , Simone M. Weinmann , Francesco Shankar , Michael Boylan-Kolchin