Rotation Curves of Disk Galaxies at Low and High Redshift

We present results and progress notes from an investigation into the rotation curves of spiral galaxies at high and low redshift. We discuss work done with data from the DEEP2 (Deep Extragalacitc Evolutionary Probe) spectroscopic survey, which is a major effort to characterize galaxies at z~1. A distinct advantage of this survey is the relatively high spatial and spectral resolution of the data, which allows us to measure spatially-resolved galaxy kinematics. When the measured kinematics are coupled with morphological information from HST/ACS, they become a powerful galaxy evolution probe. With a local sample of bright spirals, we discuss dark matter scaling relations and the galaxies' integrated and radial angular momentum content. These data are compared to theories for dark matter distributions in galactic halos with and without taking into account the mechanism of adiabatic contraction, and theories for the angular momentum content of dark matter halos.

 

Fecha: 
14/07/2005 - 14:00
Conferenciante: 
Susan Kassin
Filiación: 
Universidad de California, Santa Cruz, USA


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