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The Evolution of the Baryonic Tully-Fisher Relation over the past 6 Gyr

Published online by Cambridge University Press:  05 December 2011

M. Puech
Affiliation:
GEPI, Observatoire de Paris, CNRS, University Paris Diderot; 5 Place Jules Janssen, 92190 Meudon, France email: mathieu.puech@obspm.fr
F. Hammer
Affiliation:
GEPI, Observatoire de Paris, CNRS, University Paris Diderot; 5 Place Jules Janssen, 92190 Meudon, France email: mathieu.puech@obspm.fr
H. Flores
Affiliation:
GEPI, Observatoire de Paris, CNRS, University Paris Diderot; 5 Place Jules Janssen, 92190 Meudon, France email: mathieu.puech@obspm.fr
R. Delgado-Serrano
Affiliation:
GEPI, Observatoire de Paris, CNRS, University Paris Diderot; 5 Place Jules Janssen, 92190 Meudon, France email: mathieu.puech@obspm.fr Panama Observatory, Technological University of Panama, 0819-07289 Panama, Rep. of Panama
M. Rodrigues
Affiliation:
GEPI, Observatoire de Paris, CNRS, University Paris Diderot; 5 Place Jules Janssen, 92190 Meudon, France email: mathieu.puech@obspm.fr CENTRA, Instituto Superior Tecnico, Av. Rovisco Pais 1049-001 Lisboa, Portugal European Southern Observatory, Casilla 19001, Santiago 19, Chile
Y. Yang
Affiliation:
GEPI, Observatoire de Paris, CNRS, University Paris Diderot; 5 Place Jules Janssen, 92190 Meudon, France email: mathieu.puech@obspm.fr European Southern Observatory, Casilla 19001, Santiago 19, Chile
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Abstract

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Scaling relations are salient ingredients of galaxy evolution and formation models. I summarize results from the IMAGES survey, which combines spatially-resolved kinematics from FLAMES/GIRAFFE with imaging from HST/ACS and other facilities. Specifically, I will focus on the evolution of the stellar mass and baryonic Tully-Fisher Relations (TFR) from z = 0.6 down to z = 0. We found a significant evolution in zero point and scatter of the stellar mass TFR compared to the local Universe. Combined with gas fractions derived by inverting the Schmidt-Kennicutt relation, we derived for the first time a baryonic TFR at high redshift. Conversely to the stellar mass TFR, the baryonic relation does not appear to evolve in zero point, which suggests that most of the reservoir of gas converted into stars over the past 6 Gyr was already gravitationally bound to galaxies at z = 0.6.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2011

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