5 papers · 1 filter
Hands-On Universe: A Global Program for Education and Public Outreach in Astronomy
M. Boer, H. Pack, C. Pennypacker +3
Hands-On Universe (HOU) is an educational program that enables students to investigate the Universe while applying tools and concepts from science, math, and technology. Using the…
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…