The Stellar Mass Tully-Fisher Relation to z=1.2

Details The Stellar Mass Tully-Fisher Relation to z=1.2 The Stellar Mass Tully-Fisher Relation to z=1.2

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...20918106k&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #181.06; Bulletin of the American Astronomical Society,

Astronomy and Astrophysics

Astronomy

Scientific paper

For a sample of 544 galaxies of a large range of morphologies at 0.1 < z < 1.2, Hubble Space Telescope images and resolved spectra from Keck are used to create a stellar mass Tully-Fisher relation (correlating stellar mass with rotation velocity). The resulting relation is found to have large scatter to low rotation velocity ( 1 dex) dominated by disturbed, compact, and major merger galaxies. However, when a Tully-Fisher relation for a kinematic estimator that incorporates both rotation velocity and an integrated velocity dispersion is created, a remarkable regularity is found. This new Tully-Fisher relation has scatter that is consistent with measurement errors, is independent of morphology, and is non-evolving to z=1.2 It is also consistent with the stellar mass Faber-Jackson relation for elliptical galaxies which correlates stellar mass with central velocity dispersion. The implications of this relation for galaxy formation models will be discussed.
We would like to thank NSF grants AST0071198 and AST0507483. Support for GO program 10134 was provided by NASA through NASA grant HST-G0-10134.13-A from the Space Telescope Science Institute.

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