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Detailed Analysis of the Cross-Correlation Function between the X-Ray Background and Foreground Galaxies
A. Refregier, D. J. Helfand, R. G. McMahon
Recent ROSAT surveys suggest that galaxies constitute the new class of X-ray sources required to explain the full phenomenology of the cosmic X-Ray Background (XRB). To test this h…
Galaxies at z>4.5
Esther M. Hu, Richard G. McMahon, Eiichi Egami
We present the results of ground-based and HST imaging studies targeted on z>4.5 quasar fields. High-redshift galaxies identified in deep narrow-band Lyman alpha images of the fiel…
Measurements of the Cosmological Parameters Omega and Lambda from the First 7 Supernovae at z >= 0.35
S. Perlmutter, S. Gabi, G. Goldhaber +21
We have developed a technique to systematically discover and study high-redshift supernovae that can be used to measure the cosmological parameters. We report here results based on…
Molecular gas and dust around a radio-quiet quasar at redshift 4.7
Alain Omont, Patrick Petitjean, Stephane Guilloteau +3
We report the detection of emission from dust and carbon monoxide in the radio-quiet quasar BR1202--0725 at redshift z=4.7. Maps of these emissions reveal two objects separated by…
Detection of Lyman-alpha Emitting Galaxies at Redshift z=4.55
Esther M. Hu, Richard G. McMahon
Studies of the formation and early history of galaxies have been hampered by the difficulties inherent in detecting faint galaxy populations at high redshift. As a consequence, obs…
The FIRST Bright QSO Survey
Michael D. Gregg, Robert H. Becker, Richard L. White +3
The FIRST Radio Survey provides a new resource for constructing a large quasar sample. With source positions accurate to better than 1\arcsec\ and a point source sensitivity limit…