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Related papers: On the galaxy stellar mass function, the mass-meta…

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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

We quantify the systematic effects on the stellar mass function which arise from assumptions about the stellar population, as well as how one fits the light profiles of the most luminous galaxies at z ~ 0.1. When comparing results from the…

Astrophysics of Galaxies · Physics 2017-03-01 M. Bernardi , A. Meert , R. K. Sheth , J. -L. Fischer , M. Huertas-Company , C. Maraston , F. Shankar , V. Vikram

We fit the rotation curves of isolated dwarf galaxies to directly measure the stellar mass-halo mass relation ($M_*-M_{200}$) over the mass range $5 \times 10^5 < M_{*}/{\rm M}_\odot < 10^{8}$. By accounting for cusp-core transformations…

Astrophysics of Galaxies · Physics 2017-02-09 J. I. Read , G. Iorio , O. Agertz , F. Fraternali

We study the connection between the observed star formation rate-stellar mass (SFR-$M_*$) relation and the evolution of the stellar mass function (SMF) by means of a subhalo abundance matching technique coupled to merger trees extracted…

Astrophysics of Galaxies · Physics 2017-11-15 E. Contini , X. Kang , A. D. Romeo , Q. Xia , S. K. Yi

We present a photometric halo mass estimation technique for local galaxies that enables us to establish the stellar mass-halo mass (SMHM) relation down to stellar masses of 10$^5$ M$_\odot$. We find no detectable differences among the SMHM…

Astrophysics of Galaxies · Physics 2022-12-21 Dennis Zaritsky , Peter Behroozi

Using a large galaxy group catalogue constructed from the Sloan Digital Sky Survey Data Release 4 (SDSS DR4) with an adaptive halo-based group finder, we investigate the luminosity and stellar mass functions for different populations of…

Astrophysics · Physics 2014-11-18 Xiaohu Yang , H. J. Mo , Frank C. van den Bosch

We use a statistical approach to determine the relationship between the stellar masses of galaxies and the masses of the dark matter halos in which they reside. We obtain a parameterized stellar-to-halo mass (SHM) relation by populating…

Cosmology and Nongalactic Astrophysics · Physics 2010-01-28 Benjamin P. Moster , Rachel S. Somerville , Christian Maulbetsch , Frank C. van den Bosch , Andrea V. Maccio' , Thorsten Naab , Ludwig Oser

We study the stellar-to-halo mass relation of central galaxies in the range 9.7<log_10(M_*/h^-2 M_sun)<11.7 and z<0.4, obtained from a combined analysis of the Kilo Degree Survey (KiDS) and the Galaxy And Mass Assembly (GAMA) survey. We use…

We investigate the evolution of the galaxy stellar mass function at high-redshift ($z\ge 5$) using a pair of large cosmological hydrodynamical simulations: {\em MassiveBlack} and {\em MassiveBlack-II}. By combining these simulations we can…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Stephen M. Wilkins , Tiziana Di Matteo , Rupert Croft , Nishikanta Khandai , Yu Feng , Andrew Bunker , William Coulton

[Abridged] We estimate the contribution of Massive Compact Halo Objects (Machos) and their stellar progenitors to the mass density of the Universe. If the Machos that have been detected reside in the Halo of our Galaxy, then a simple…

Astrophysics · Physics 2016-08-30 Brian D. Fields , Katherine Freese , David S. Graff

The mass-metallicity relation (MZR) represents one of the most important scaling relations in the context of galaxy evolution, comprising a positive correlation between stellar mass and metallicity (Z). The fundamental metallicity relation…

Since the major review by Scalo (1986), significant progress has been achieved in constraining the mass function (MF) of low-mass stars. The break-throughs which today allow a much better understanding of the stellar luminosity function…

Astrophysics · Physics 2007-05-23 Pavel Kroupa

We use N-body simulations and observationally-normalized relations between dark matter halo mass, stellar mass, and cold gas mass to derive robust, arguably inevitable expectations about the baryonic content of major mergers out to redshift…

Cosmology and Nongalactic Astrophysics · Physics 2009-11-14 Kyle R. Stewart , James S. Bullock , Risa H. Wechsler , Ariyeh H. Maller

We present evidence for stochastic star formation histories in low-mass (M* < 10^10 Msun) galaxies from observations within the Galaxy And Mass Assembly (GAMA) survey. For ~73,000 galaxies between 0.05<z<0.32, we calculate star formation…

We examine the origin and evolution of the mass-metallicity relationship (MZR, M-Z) for galaxies using high resolution cosmological SPH + N-Body simulations that include a physically motivated description of supernovae feedback and…

Astrophysics · Physics 2009-11-11 A. M. Brooks , F. Governato , C. M. Booth , B. Willman , J. P. Gardner , J. Wadsley , G. Stinson , T. Quinn

We investigate the role of stellar mass in shaping the intrinsic thickness of faint systems by determining the probability distribution of apparent axis ratios for two different samples that probe the faint end of the galaxy luminosity…

Cosmology and Nongalactic Astrophysics · Physics 2010-09-16 R. Sánchez-Janssen , J. Méndez-Abreu , J. A. L. Aguerri

We derive and parametrize the Galactic mass function (MF) below 1 $\msol$ characteristic of both single objects and binary systems. We resolve the long standing discrepancy between the MFs derived from the HST and from the nearby luminosity…

Astrophysics · Physics 2011-06-21 Gilles Chabrier

A very simple physical model of galaxies, in which the formation of stars is instantaneously regulated by the mass of gas in a reservoir, links together three different aspects of the evolving galaxy population:(a) the cosmic time evolution…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 Simon J. Lilly , C. Marcella Carollo , Antonio Pipino , Alvio Renzini , Yingjie Peng

Baryonic cycling is reflected in the spatial distribution of metallicity within galaxies, yet gas-phase metallicity distribution and its connection with other properties of dwarf galaxies are largely unexplored. We present the first…