Abstract
Galaxy evolution is probably a complex process. Mergers, infall, and star-bursts may change galaxy properties systematically with time. As a result, information on the mass evolution of galaxies is needed. Such information can be retrieved from the evolution of the Tully-Fisher relation, Faber-Jackson relation, or the Fundamental Plane with redshift.
Observations of this kind have recently become possible. We present the Fundamental Plane relation measured for galaxies in the rich cluster CL0024+16 at z=0.391. The galaxies satisfy a tight Fundamental Plane, with relatively low scatter (15 %). The M/L is 31 ± 12 % lower than the M/L measured in Coma, which is consistent with simple evolutionary models. Hence, galaxies with very similar dynamical properties existed at a z=0.4.
An important goal of new, large optical telescopes will be to extend this type of work to larger samples, fainter magnitudes, and higher redshifts.
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Franx, M., van Dokkum, P.G. (1997). Constraining the Evolution of Galaxy Masses and the M/L Ratios out to z=1. In: Bergeron, J. (eds) The Early Universe with the VLT. ESO Astrophysics Symposia. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-49709-7_12
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DOI: https://doi.org/10.1007/978-3-540-49709-7_12
Publisher Name: Springer, Berlin, Heidelberg
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