NOAO > Observing Info > Approved Programs > 2003B-0061
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NOAO > Observing Info > Approved Programs > 2003B-0061 |
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PI: David Turnshek, University of Pittsburgh, turnshek@quasar.phyast.pitt.edu
Address: Physics Department, 3941 O'Hara Street, Pittsburgh, PA 15260, USA
CoI: Dan Vanden Berk, University of Pittsburgh
CoI: Cyril Hazard, University of Pittsburgh
CoI: Sandhya Rao, University of Pittsburgh
CoI: SDSS team collaborators, various
Title: Identification of QSOs for Follow-up QSO Absorption-Line and QSO Clustering Studies
Abstract:
We propose a program to identify new QSOs for several types of
programs: (1) future determinations of the extent and properties of the
gaseous and dark matter components of nearby galaxies, (2) future
determinations of the size scales of foreground gaseous structures in
the Universe out to high redshift, and (3) measurement of the clustering
properties of QSOs themselves. Existing data that has become available
over the last several years, especially at radio and x-ray wavelengths
when used in combination with SDSS colors, suggests that new searches
for QSOs behind nearby galaxies will be fruitful. Additionally, SDSS
spectroscopy is generally unable to find two QSOs within 55 arcsec of
each other due to limitations on the fiber spacing in the spectroscopic
follow-up. Thus, spectroscopy is needed for SDSS QSO candidates that
could not be observed in the SDSS spectroscopic follow-up. We request 7
nights of 2.1-m time to perform spectroscopy of candidate QSOs to pursue
the goals mentioned above.
National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360
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NOAO > Observing Info > Approved Programs > 2003B-0061 |
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