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Getting at the fundamental properties of damped Lyman alpha systems (DLAs)
I have conducted two large imaging and spectroscopic
surveys for high redshift (z = 2 - 5) LBGs and damped
Lyman alpha systems (DLAs). These surveys exploit the
sensitivity and field-of-view of the
Keck
LRIS
and DEIMOS,
Palomar
COSMIC,
MMT
MegaCam, and
Subaru
SuprimeCam
instruments (Cooke
et al. 2005, 2011c in prep.). A primary goal of these
surveys is to measure the 3-D distribution of LBGs and DLAs
at z ~ 3 and z ~ 4 via the spatial correlation
and cross-correlation functions. The measurements from
these surveys help determine fundamental properties such as
galaxy bias, mass, luminosity, and evolutionary paths. The
first measurement of the mass of z ~ 3 DLAs is
presented in (Cooke et al. 2006a, 2006b). The larger, wide-field
z = 2 - 5 survey will improve the statistics and
probe extended sightlines via bright LBGs to provide, for
the first time, the geometry of DLAs at high redshift.
Click here to access the ADS link displaying a list of
articles describing this work and other research of mine.
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The Hubble Space Telescope
| The Milky Way can be seen, as well as two
of our closest companion galaxies, the Large and Small
Magellenic Clouds, in this long-exposure image of the 4
meter telescope at
the CTIO
located in the Southern Hemisphere (Chile). |
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