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Related papers: Systematic Uncertainties in Stellar Mass Estimatio…

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We use detailed modeling of stellar populations of nearby galaxies to calculate population parameters. Our sample of galaxies includes most galaxies of the Local Group and several more distant giant galaxies. Available data are sufficient…

Astrophysics · Physics 2007-05-23 J. Einasto , P. Tenjes

The observed stellar kinematics of dispersion-supported galaxies are often used to measure dynamical masses. Recently, several analytical relationships between the stellar line-of-sight velocity dispersion, the projected (2D) or deprojected…

We present a statistical comparison of three different estimates of cluster mass, namely, the dynamical masses obtained from the velocity dispersion of optical galaxies, the X-ray masses measured from the temperature of X-ray emitting gas…

Astrophysics · Physics 2009-10-30 Xiang-Ping Wu , Li-Zhi Fang

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…

Astrophysics of Galaxies · Physics 2020-04-29 Joel Leja , Joshua S. Speagle , Benjamin D. Johnson , Charlie Conroy , Pieter van Dokkum , Marijn Franx

During this last decade our knowledge of the evolutionary properties of stars has significantly improved. This result has been achieved thanks to our improved understanding of the physical behavior of stellar matter in the thermal regimes…

Solar and Stellar Astrophysics · Physics 2015-05-14 Santi Cassisi

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…

Astrophysics · Physics 2009-11-13 F. Elsner , G. Feulner , U. Hopp

Mass determinations are difficult to obtain and still frequently characterised by deceptively large uncertainties. We review below the various mass estimators used for star clusters of all ages and luminosities. We highlight a few recent…

Astrophysics · Physics 2007-05-23 Georges Meylan

The stellar masses, mean ages, metallicities, and star formation histories of galaxies are now commonly estimated via stellar population synthesis (SPS) techniques. SPS relies on stellar evolution calculations from the main sequence to…

Astrophysics · Physics 2009-08-18 Charlie Conroy , James E. Gunn , Martin White

We compare the growth in stellar mass of galaxies in the $6<z<12$ epoch with predictions of a semi-analytic galaxy formation model - Galacticus. In contrast to diverse and controversial results that compare models and data for the…

Astrophysics of Galaxies · Physics 2026-02-03 Alan Dressler , Andrew Benson

The evolution of masses and sizes of passive (early-type) galaxies with redshift provides ideal constraints to galaxy formation models. These parameters can in principle be obtained for large galaxy samples from multi-band photometry alone.…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 Michele Cappellari

(Abridged) We introduce a novel technique to construct spatially resolved maps of stellar mass surface density in galaxies based on optical and near IR imaging. We use optical/NIR colour(s) to infer effective stellar mass-to-light ratios…

Cosmology and Nongalactic Astrophysics · Physics 2011-03-28 Stefano Zibetti , Stephane Charlot , Hans-Walter Rix

We investigate the stellar masses of the class of star-forming objects known as Luminous Compact Blue Galaxies (LCBGs) by studying a sample of galaxies in the distant cluster MS$~$0451.6-0305 at $z\approx0.54$ with ground-based multicolor…

Astrophysics of Galaxies · Physics 2017-08-02 S. M. Randriamampandry , S. M. Crawford , M. A. Bershady , G. D. Wirth , C. M. Cress

The estimated stellar masses of galaxies are widely used to characterize how the galaxy population evolves over cosmic time. If stellar masses can be estimated in a robust manner, free from any bias, global diagnostics such as the stellar…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 P. D. Mitchell , C. G. Lacey , C. M. Baugh , S. Cole

We present new color-$\Upsilon_*$ (mass-to-light) models to convert WISE W1 fluxes into stellar masses. We outline a range of possible star formation histories and chemical evolution scenarios to explore the confidence limits of stellar…

Astrophysics of Galaxies · Physics 2025-01-22 Francis Duey , James Schombert , Stacy McGaugh , Federico Lelli

How stellar mass assembles within galaxies is still an open question. We present measurements of the stellar mass distribution on kpc-scale for $\sim5500$ galaxies with stellar masses above $\log(M_{\ast}/M_{\odot})\geqslant9.8$ up to the…

Astrophysics of Galaxies · Physics 2021-01-06 Moein Mosleh , Shiva Hosseinnejad , S. Zahra Hosseini-ShahiSavandi , Sandro Tacchella

Local galaxies follow scaling relations between mass and stellar population properties such as age and metallicity, which encode key information on their evolutionary histories. We revise these relations using the largest spectroscopic…

Astrophysics of Galaxies · Physics 2025-11-05 D. Mattolini , S. Zibetti , A. R. Gallazzi , L. Scholz-Diaz , J. Pratesi

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…

Astrophysics · Physics 2015-06-24 Roelof S. de Jong , Eric Bell

The determination of stellar populations of galaxies are important for studying the formation and evolution of galaxies, because all galaxies contain many stars and they evolve with galaxies. Spectra data are usually used to determine the…

Solar and Stellar Astrophysics · Physics 2013-02-04 Zhongmu Li

The redshift dependence of the luminosity density in certain wavebands (e.g. UV and H-alpha) can be used to infer the history of star formation in the populations of galaxies producing this luminosity. This history is a useful datum in…

Astrophysics · Physics 2009-10-31 J. Afonso , L. Cram , B. Mobasher

In this paper, we test the discrepancy between the stellar mass density and instantaneous star formation rate in redshift range $0<z<8$ using a large observational data sample. We first compile the measurements of the stellar mass densities…

Astrophysics of Galaxies · Physics 2016-04-13 H. Yu , F. Y. Wang