Other
Scientific paper
May 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aas...182.7802e&link_type=abstract
American Astronomical Society, 182nd AAS Meeting, #78.02; Bulletin of the American Astronomical Society, Vol. 25, p.929
Other
Scientific paper
As another approach to detect a population of high-z galaxies, we have been undertaking a deep survey of fields around z>4 quasars, trying to find galaxies associated with these quasars at quasars' redshifts. We shall present the preliminary results of this survey. This survey consists of deep imaging around five z>4 quasars in the B, I, and K band. The survey area per field is 90(2) arcsec(2) , which is limited by the small size of IR array. This survey has the following advantages over the previous studies: The sample is selected in the K band, in which light suffers less obscuration by dust. Quasars at z>4 are expected to reside in exceptionally high peaks of density, which implies strong clustering of galaxies around those quasars. Therefore, we can expect a larger possibility of finding galaxies around them. At redshifts larger than 4, the Lyman continuum break at 912 Angstroms falls longward of the B band. Therefore, galaxies at such high redshifts can be discriminated by abrupt drop in flux at the B band. Our results will be statistically compared with the results from Hawaii Blank-Sky Deep Survey (Cowie et. al.). Also, preliminary results from follow-up multi-slit spectroscopy done for one of the fields will be discussed.
Egami Eiichi E.
Hu Evelyn
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