Physics – Optics
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...20921701l&link_type=abstract
2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #217.01; Bulletin of the American Astronomical Society,
Physics
Optics
1
Scientific paper
The environments surrounding Ultra-Luminous Infrared Galaxies (ULIRGS; Lir > 10^12 Lsun) and LIRGs (LIRGS; Lir > 10^11 Lsun) are potential laboratories for studying the formation of galaxy clusters. These proto-clusters likely contain large amounts of mass in the form of dark matter (DM) haloes and are actively accreting galaxies, inducing star formation and AGN activity. In addition, possible companions are frequently seen in the vicinity of ULIRGs. We present preliminary results of a project to study clustering properties of ULIRGs in the FIRST sample. We have obtained wide field of view (FOV) (75’x 65’) ESI R-band sub-arcsecond seeing images with limiting magniudes of R=25 of the fields surrounding 32 (z < 0.35) ULIRGs and LIRGs. To confirm group membership we have obtained spectra using the Shane 3m telescope at Lick Observatory, for many of the galaxies in these fields. In addition, we discuss a new adaptive optics (AO) technique on the horizon for Keck Observatory that would be helpful for this research. A project to obtain redshifts and wide FOV imaging of a larger sample of ULIRGs is ongoing.
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