Stellar mass estimates in early-type galaxies: procedures, uncertainties and models dependence

Details Stellar mass estimates in early-type galaxies: procedures, uncertainties and models dependence Stellar mass estimates in early-type galaxies: procedures, uncertainties and models dependence

2008-11-25

arxiv.org/abs/0811.4041v1

Astronomy and Astrophysics

Astrophysics

Accepted for publication in MNRAS

Scientific paper

10.1111/j.1365-2966.2008.14375.x

The aim of the present paper is to quantify the dependence of the estimates of luminosities and stellar mass of early-type galaxies on the different models and model parameters which can be used to analyze the observational data. The paper is organized in two parts. The first one analyzes the dependence of the M/L ratios and of the k-corrections in different bands on model parameters (IMF, metallicity, star formation history, age), assuming some among the most popular spectrophotometric codes usually adopted to study the evolutionary status of galaxies [...]. The second part of our work is dedicated to quantify the reliability and systematics affecting the mass and luminosity estimates obtained by means of the best fitting technique applied to the photometric SEDs of early-type galaxies at $1

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