Speaker:
Sarah Miller
Institution:
Oxford
Speaker Link:
Date:
Tuesday, May 29, 2012
Time:
4:00 pm
Location:
NS2 1201
ABSTRACT:
I will present new measures of the rotation curves of disk galaxies to z~1.7, using deep exposures from both DEIMOS and LRIS spectrographs on the Keck telescopes, in combination with multi-band HST imaging. Contrary to previous studies, we show that the stellar mass Tully-Fisher relation is tightly in place at z~1 with similar scatter to that found locally. Furthermore, I will discuss evidence that there is little change in this relation beyond z~1 to z~1.7, and explore the implications for galaxy-scale baryonic and dark matter interaction in a universe with a strikingly similar stellar mass Tully-Fisher relation over two-thirds of its age.
Host:
James Bullock