%0 Generic %1 Miller2011 %A Miller, Sarah H. %A Bundy, Kevin %A Sullivan, Mark %A Ellis, Richard S. %A Treu, Tommaso %D 2011 %K disk galaxy high-z spectra tully-fisher %T The Assembly History of Disk Galaxies: I - The Tully-Fisher Relation to z~1.3 from Deep Exposures with DEIMOS %U http://arxiv.org/abs/1102.3911 %X We present new measures of the evolving scaling relations between stellar mass, rotational velocity, magnitude, and baryonic mass estimates for a morphologically-inclusive sample of 129 disk-like galaxies selected with zAB < 22.5 in the redshift range 0.2 < z < 1.3, based on deep spectra from the DEIMOS instrument on the Keck II 10 meter telescope, multi-color HST ACS photometry, and ground-based Ks-band imaging. A unique feature of our survey is the use of extended integration times for the spectroscopy which has led to significant improvements in determining characteristic rotational velocities for each galaxy and a rigorous appraisal of their accuracy. Rotation curves are reliably traced to the radius where they begin to flatten for ~90% of our sample, and we model the HST resolved bulge and disk components of each galaxy in order to accurately de-project our measured velocities while accounting for seeing, dispersion and slit effects. We demonstrate the merit of these advances by recovering an intrinsic scatter on the stellar mass Tully-Fisher relation a factor of 2-3 less than in previous studies at intermediate redshift and comparable to that of locally-determined relations. With this increased precision, we show evidence for modest evolution in the stellar mass Tully-Fisher relation, \Delta M~ 0.14 0.11 dex from <z> ~ 1 to <z> ~ 0.3, a growth rate in agreement with recent hydrodynamical and semi-analytic predictions. Greater evolution is seen in the B-band magnitude Tully-Fisher relation consistent with a decline in disk luminosity of 0.80 0.16 magnitudes at fixed velocity over the same redshift interval. We use our dynamical and stellar mass data to evaluate the likely contributions of baryons and dark matter within our characteristic disk radius and discuss the physical implications for the assembly history of spiral galaxies.

@misc{Miller2011, abstract = { We present new measures of the evolving scaling relations between stellar mass, rotational velocity, magnitude, and baryonic mass estimates for a morphologically-inclusive sample of 129 disk-like galaxies selected with zAB < 22.5 in the redshift range 0.2 < z < 1.3, based on deep spectra from the DEIMOS instrument on the Keck II 10 meter telescope, multi-color HST ACS photometry, and ground-based Ks-band imaging. A unique feature of our survey is the use of extended integration times for the spectroscopy which has led to significant improvements in determining characteristic rotational velocities for each galaxy and a rigorous appraisal of their accuracy. Rotation curves are reliably traced to the radius where they begin to flatten for ~90% of our sample, and we model the HST resolved bulge and disk components of each galaxy in order to accurately de-project our measured velocities while accounting for seeing, dispersion and slit effects. We demonstrate the merit of these advances by recovering an intrinsic scatter on the stellar mass Tully-Fisher relation a factor of 2-3 less than in previous studies at intermediate redshift and comparable to that of locally-determined relations. With this increased precision, we show evidence for modest evolution in the stellar mass Tully-Fisher relation, \Delta M\ast ~ 0.14 \pm 0.11 dex from <z> ~ 1 to <z> ~ 0.3, a growth rate in agreement with recent hydrodynamical and semi-analytic predictions. Greater evolution is seen in the B-band magnitude Tully-Fisher relation consistent with a decline in disk luminosity of 0.80 \pm 0.16 magnitudes at fixed velocity over the same redshift interval. We use our dynamical and stellar mass data to evaluate the likely contributions of baryons and dark matter within our characteristic disk radius and discuss the physical implications for the assembly history of spiral galaxies. }, added-at = {2011-02-22T16:55:38.000+0100}, author = {Miller, Sarah H. and Bundy, Kevin and Sullivan, Mark and Ellis, Richard S. and Treu, Tommaso}, biburl = {https://www.bibsonomy.org/bibtex/2c9719efccedaf33c022db01bbbe7791c/miki}, description = {[1102.3911] The Assembly History of Disk Galaxies: I - The Tully-Fisher Relation to z~1.3 from Deep Exposures with DEIMOS}, interhash = {db843f6260a20349a1c026fb9f0bbb50}, intrahash = {c9719efccedaf33c022db01bbbe7791c}, keywords = {disk galaxy high-z spectra tully-fisher}, note = {cite arxiv:1102.3911 Comment: 19 pages, 10 figures, submitted to ApJ}, timestamp = {2011-02-22T16:55:38.000+0100}, title = {The Assembly History of Disk Galaxies: I - The Tully-Fisher Relation to z~1.3 from Deep Exposures with DEIMOS}, url = {http://arxiv.org/abs/1102.3911}, year = 2011 }