Computer Science
Scientific paper
Aug 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000noao.prop...46i&link_type=abstract
NOAO Proposal ID #2000B-0046
Computer Science
Scientific paper
This proposal requests multi-object spectroscopy to confirm quasar candidates in regions centered on two ultra-deep pencil beam surveys. We request 5 nights with HYDRA on the CTIO 4m to observe 310 quasar candidates in a 2.75 deg^2 region centered on the southern Hubble Deep Field, and 5 nights with WIYN/HYDRA to observe 110 quasar candidates in a 1 deg^2 region centered on an equatorial field that has been the subject of a Keck photometric and spectroscopic survey. The overall goal is to set up a grid of absorption line probes of dim and diffuse matter throughout a volume that encompasses the two pencil beams. We will study 3D absorber clustering, relate absorbers to the galaxy redshift distributions, and probe large scale structure on scales of 2- 200 h^-1_100 Mpc. The redshift ranges spanned by the absorbers are 0.4 < z < 1.6 (Mg II), 1.5 < z < 3.7 (C IV), and 2.2 < z < 3.7 (Lyman-(alpha)). The HYDRA spectra will enable a search for absorber- absorber and absorber-galaxy clustering in each of these two fields with 3-10 times the sensitivity of any previous experiment.
Impey Chris
Petry Cathy
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