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

Published online by Cambridge University Press:  07 August 2017

Marijn Franx
Marijn Franx*
Affiliation:
Kapteyn Astronomical Institute, P.O. Box 800, 9700 AV Groningen, The Netherlands ([email protected])

Abstract

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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.

Type
Session 6: Stellar Populations in Elliptical Galaxies
Information
Symposium - International Astronomical Union , Volume 164: Stellar Populations , 1995 , pp. 269 - 274
Copyright
Copyright © Kluwer 1995 

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