The Evolution of the Tully-Fisher Relation over the Past 6 Gyr

Details The Evolution of the Tully-Fisher Relation over the Past 6 Gyr The Evolution of the Tully-Fisher Relation over the Past 6 Gyr

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aspc..421..281p&link_type=abstract

Galaxies in Isolation: Exploring Nature Versus Nurture, proceedings of a conference held 12 to 15 May 2009 in Granada, Spain. Ed

Astronomy and Astrophysics

Astronomy

Scientific paper

We present results obtained regarding the evolution of the stellar-mass (smTFR) and the baryonic (bTFR) Tully-Fisher Relations between z ˜ 0.6 and z = 0, using the multi-integral field spectrograph GIRAFFE at VLT. While the smTFR is found to be evolving in zero point by a factor two in mass over this redshift range, the bTFR does not appear to evolve significantly. The scatter of these relations is shown to be due to a transfer of energy between large-scale rotation and small-scale random motions occuring during major merger events.

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