FM7p.06 — Stellar mass of elliptical galaxies in the Sloan Digital Sky Survey

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Aug 10th at 6:00 PM until 6:00 PM




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Author(s): Chen-Hung Chen1, Chung-Ming Ko1

Institution(s): 1. National Central University

Stellar mass is an important ingredient in the study of the evolution of galaxies. As an alternative to the dark matter paradigm, MOdified Newtonian Dynamics (MOND) provides us a tool to estimate more directly the baryonic mass of a galaxy via its dynamical mass. As most baryons are resided in stars in an elliptical galaxy, we estimate its stellar mass by calculating its dynamical mass in the framework of MOND. Hernquist model is adopted for the mass distribution. We select elliptical galaxies with measured velocity dispersion and effective radius between redshift 0.05 and 0.5 from the main galaxy sample and the luminous red galaxy sample in the Sloan Digital Sky Survey. In this contribution we present the evolution of the stellar mass of elliptical galaxies with redshift.