Measuring the Evolution of the M/L Ratio from the Fundamental Plane

Author: Franx M.

Source: Astrophysics and Space Science, Volume 267, Numbers 1-4, 1999 , pp. 293-298(6)

Publisher: Springer

Abstract:

The Fundamental plane provides a sensitive tool to measure the change in the M/L ratio of early type galaxies with redshift. The evolution of the M/L ratio is a function of the star formation history. It depends on the IMF, the formation redshift, and cosmology. Some model examples are shown, and a first result on the cluster Abell 665 at z=0.18 is given. The measurements confirm the cosmological surface brightness dimming, and imply an evolution of the (red) L/M ratio (1 + z)^1.8±0.7. More data are needed to extend this result to higher redshifts, and to test the underlying assumptions.

Language: English

Document Type: Regular paper

Affiliations: 1: Kapteyn Astronomical Institute P.O. Box 800, 9700 AV Groningen, The Netherlands franx@astro.rug.nl

Publication date: 1999-01-01

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