Published in
American Astronomical Society, Astrophysical Journal, 1(783), p. 28, 2014
DOI: 10.1088/0004-637x/783/1/28
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Type-Ia Supernova Rates to Redshift 2.4 from CLASH: the Cluster Lensing And Supernova survey with Hubble
,
S. A. Rodney,
D. Maoz,
A. G. Riess,
S. W. Jha,
M. Postman,
T. Dahlen,
T. W.-S. Holoien,
C. McCully,
B. Patel,
L.-G. Strolger,
N. Benitez,
D. Coe,
S. Jouvel,
E. Medezinski
and other authors.
Full text: Download
Abstract
We present the supernova (SN) sample and Type-Ia SN (SN Ia) rates from the Cluster Lensing And Supernova survey with Hubble (CLASH). Using the Advanced Camera for Surveys and the Wide Field Camera 3 on the Hubble Space Telescope (HST), we have imaged 25 galaxy-cluster fields and parallel fields of non-cluster galaxies. We report a sample of 27 SNe discovered in the parallel fields. Of these SNe, ~13 are classified as SN Ia candidates, including four SN Ia candidates at redshifts z > 1.2. We measure volumetric SN Ia rates to redshift 1.8 and add the first upper limit on the SN Ia rate in the range 1.8 99% significance level. ; Comment: Accepted by ApJ. 19 pages, 14 figures, 6 tables. Minor corrections