Probing Galaxies Through Quasar Absorption Lines with HST/COS

Details Probing Galaxies Through Quasar Absorption Lines with HST/COS Probing Galaxies Through Quasar Absorption Lines with HST/COS

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21942609k&link_type=abstract

American Astronomical Society, AAS Meeting #219, #426.09

Astronomy and Astrophysics

Astronomy

Scientific paper

With 20-30 times the throughput of the Hubble Space Telescope's previous far-UV spectrographs at comparable resolution, the Cosmic Origins Spectrograph (COS) is revolutionizing studies of the low-redshift intergalactic medium (IGM). This new wealth of low-redshift IGM absorbers is important because only at the lowest redshifts can we probe the faint end of the galaxy luminosity function to determine the contribution of both dwarf and luminous galaxies to IGM enrichment. We will present results from recent studies of low-redshift galaxy/absorber associations targeted with COS as well as serendipitous associations combed from the STIS archive focusing on the extent and content of a galaxy's circumgalactic medium as a function of its luminosity.

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