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A survey for high-redshift radio-loud quasars: optical spectroscopy of S > 0.2 Jy, flat-spectrum radio sources
I. M. Hook, R. G. McMahon, M. J. Irwin +1
We present optical spectroscopic data for a complete sample of 161 S_5GHz >= 0.2 Jy, flat-spectrum radio sources. The sources were observed as part of a survey for high redshift, r…
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…
The Type Ia Supernova Rate at z
R. Pain, I. M. Hook, S. Deustua +17
We present the first measurement of the rate of Type Ia supernovae at high redshift. The result is derived using a large subset of data from the Supernova Cosmology Project. Three…
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…
The Type Ia Supernova Rate at z ~ 0.4
R. Pain, I. Hook, S. Perlmutter +23
We present the first measurement of the rate of Type Ia supernovae at high redshift. The result is derived using a large subset of data from the Supernova Cosmology Project as desc…
Observation of Cosmological Time Dilation using Type Ia Supernovae as Clocks
G. Goldhaber, S. Deustua, S. Gabi +23
This work is based on the first results from a systematic search for high redshift Type Ia supernovae. Using filters in the R-band we discovered seven such SNe, with redshift z = 0…
K Corrections For Type Ia Supernovae and a Test for Spatial Variation of the Hubble Constant
A. Kim, S. Deustua, S. Gabi +23
Cross-filter K corrections for a sample of "normal" Type Ia supernovae (SNe) have been calculated for a range of epochs. With appropriate filter choices, the combined statistical a…
Scheduled Discoveries of 7+ High-Redshift Supernovae: First Cosmology Results and Bounds on q_0
S. Perlmutter, S. Deustua, S. Gabi +23
Our search for high-redshift Type Ia supernovae discovered, in its first years, a sample of seven supernovae. Using a "batch" search strategy, almost all were discovered before max…