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相关论文: The high mass end of the stellar mass function: De…

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In addition to the large systematic differences arising from assumptions about the stellar mass-to-light ratio, the massive end of the stellar mass function is rather sensitive to how one fits the light profiles of the most luminous…

宇宙学与河外天体物理 · 物理学 2015-06-15 M. Bernardi , A. Meert , R. K. Sheth , V. Vikram , M. Huertas-Company , S. Mei , F. Shankar

We discuss the uncertainties and the systematic effects that exist in the estimates of the stellar masses of high redshift galaxies, using broad band photometry, and how they affect the deduced galaxy stellar mass function. We use at this…

宇宙学与河外天体物理 · 物理学 2014-11-18 S. Salimbeni , A. Fontana , E. Giallongo , A. Grazian , N. Menci , L. Pentericci , P. Santini

We determine the importance of redshift-dependent systematic effects in the determination of stellar masses from broad band spectral energy distributions (SEDs), using high quality kinematic and photometric data of early-type galaxies at…

We show that different stellar-mass estimation methods yield overall mass scales that disagree by factors up to ~2 for the z=0 galaxy population, and more importantly, relative mass scales that sometimes disagree by factors >~3 between…

天体物理学 · 物理学 2009-11-13 Sheila J. Kannappan , Eric Gawiser

We present robust statistical estimates of the accuracy of early-type galaxy stellar masses derived from spectral energy distribution (SED) fitting as functions of various empirical and theoretical assumptions. Using large samples…

宇宙学与河外天体物理 · 物理学 2015-05-28 R. Swindle , R. R. Gal , F. La Barbera , R. R. de Carvalho

We introduce a model Galactic field low-mass stellar population that has a proportion of binary systems as observed, with a mass ratio distribution consistent with observational constraints. The model single star and system luminosity…

天体物理学 · 物理学 2009-10-28 Pavel Kroupa

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…

宇宙学与河外天体物理 · 物理学 2015-06-12 Stephen M. Wilkins , Tiziana Di Matteo , Rupert Croft , Nishikanta Khandai , Yu Feng , Andrew Bunker , William Coulton

Since z~1, the stellar mass density locked in low mass groups and clusters has grown by a factor of ~8. Here we make the first statistical measurements of the stellar mass content of low mass X-ray groups at 0.5<z<1, enabling the…

There has been a long-standing factor-of-two tension between the observed star formation rate density and the observed stellar mass buildup after $z\sim2$. Recently we have proposed that sophisticated panchromatic SED models can resolve…

星系天体物理 · 物理学 2020-04-29 Joel Leja , Joshua S. Speagle , Benjamin D. Johnson , Charlie Conroy , Pieter van Dokkum , Marijn Franx

We present a new tool for the photometric estimate of stellar masses in distant galaxies. The observed SEDs are fitted by combining single stellar populations, with different SFRs and amounts of dust extinction. This approach gives us the…

天体物理学 · 物理学 2009-11-10 Stefano Berta , Jacopo Fritz , Alberto Franceschini , Alessandro Bressan , Carol Lonsdale

We present a study on the clustering of a stellar mass selected sample of galaxies with stellar masses M*>10^10Msol at redshifts 0.4<z<2.0, taken from the Palomar Observatory Wide-field Infrared Survey. We examine the clustering properties…

宇宙学与河外天体物理 · 物理学 2016-11-25 Sebastien Foucaud , Christopher J. Conselice

We present stellar mass surface density profiles of a mass-selected sample of 177 galaxies at 0.5 < z < 2.5, obtained using very deep HST optical and near-infrared data over the GOODS-South field, including recent CANDELS data. Accurate…

宇宙学与河外天体物理 · 物理学 2015-06-11 Daniel Szomoru , Marijn Franx , Pieter G. van Dokkum , Michele Trenti , Garth D. Illingworth , Ivo Labbe , Pascal Oesch

We study the stellar mass distribution for galaxies in 160 X-ray detected groups of 10^13<Log(M_200/M_sun)<2x10^14 and compare it with that of galaxies in the field, to investigate the action of environment on the build up of the stellar…

宇宙学与河外天体物理 · 物理学 2015-06-03 S. Giodini , A. Finoguenov , D. Pierini , G. Zamorani , O. Ilbert , S. Lilly , Y. Peng , N. Scoville , M. Tanaka

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…

宇宙学与河外天体物理 · 物理学 2015-05-27 Eyal Neistein , Cheng Li , Sadegh Khochfar , Simone M. Weinmann , Francesco Shankar , Michael Boylan-Kolchin

We investigate the mass-to-light ratios of stellar populations as predicted by stellar population synthesis codes and compare those to dynamical/gravitational measurements. In Bell & de Jong (2001) we showed that population synthesis models…

天体物理学 · 物理学 2015-06-24 Roelof S. de Jong , Eric Bell

We derive average flux corrections to the \texttt{Model} magnitudes of the Sloan Digital Sky Survey (SDSS) galaxies by stacking together mosaics of similar galaxies in bins of stellar mass and concentration. Extra flux is detected in the…

星系天体物理 · 物理学 2015-11-04 R. D'Souza , S. Vegetti , G. Kauffmann

The definition of the galactic stellar mass estimated from the spectral energy distribution is ambiguous in the literature; whether the stellar mass includes the mass of the stellar remnants, i.e. white dwarfs, neutron stars, and black…

宇宙学与河外天体物理 · 物理学 2015-06-17 Ikkoh Shimizu , Akio K. Inoue

The purpose of this letter is to compare the quality of different methods for estimating stellar masses of galaxies. We compare the results of (a) fitting stellar population synthesis models to broad band colors from SDSS and 2MASS, (b) the…

天体物理学 · 物理学 2009-11-10 N. Drory , R. Bender , U. Hopp

Aims: We estimate stellar masses of galaxies in the high redshift universe with the intention of determining the influence of newly available Spitzer/IRAC infrared data on the analysis. Based on the results, we probe the mass assembly…

天体物理学 · 物理学 2009-11-13 F. Elsner , G. Feulner , U. Hopp

We present a detailed analysis of the Galaxy Stellar Mass Function of galaxies up to z=2.5 as obtained from the VVDS. We estimate the stellar mass from broad-band photometry using 2 different assumptions on the galaxy star formation history…

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