NOAO >   Observing Info >   Approved Programs >   2014A-0506

Small NOAO Logo

Proposal Information for 2014A-0506


PI: Joseph N. Burchett, University of Massachusetts, jburchet@astro.umass.edu
Address: Astronomy Department

CoI: Todd Tripp, University of Massachusetts - Amherst
CoI: J. Xavier Prochaska, UCO/Lick Observatory
CoI: Jason Tumlinson, Space Telescope Science Institue

Title: A Deep Search for Faint Galaxies Associated with Low-redshift C IV Absorbers

Abstract: A key piece of the galaxy evolution puzzle is the impact of feedback and accretion processes on the gas budget of galaxies, their circumgalactic media, and the surrounding intergalactic medium. We generally study these latter two via quasar absorption lines to detect the gas and make some inferences about which galaxy near the sightline might be hosting the gas in its halo or ejecting it in an outflow. However, accurately drawing these gas/galaxy connections depends on the completeness of the underlying galaxy survey. At all but the very lowest redshifts (z<0.04), surveys such as the Sloan Digital Sky Survey are woefully incomplete to dwarf galaxies and can lead to the gas system being incorrectly associated to a more luminous galaxy that is detected. We propose observations as part of a volume-limited galaxy survey around a sample of low-redshift metal-line absorbers detected in HST/COS spectroscopy. Our survey aims for completeness to L~0.01 L* galaxies out to our furthest detected absorber at z=0.15.


National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360



NOAO >   Observing Info >   Approved Programs >   2014A-0506

noaoprop-help@noao.edu

Small NOAO Logo