Cosmology from Cluster-Hosted and z>1 SNe Orphaned from the MCT Programs

Details Cosmology from Cluster-Hosted and z>1 SNe Orphaned from the MCT Programs Cosmology from Cluster-Hosted and z>1 SNe Orphaned from the MCT Programs

Jul 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009hst..prop12360p&link_type=abstract

HST Proposal ID #12360. Cycle 18

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With strategically timed followup observations we can enable cosmology studies from SNe Ia that will be found in the forthcoming HST multi-cycle treasury {MCT} programs, but otherwise orphaned. Two of these MCT programs are structured so that SNe Ia can be discovered and followed. These programs, however, have not proposed for all of the SN science. In particular, one program {PI Postman} will discover but not follow SNe hosted by cluster elliptical galaxies, which will be relatively free from the systematic uncertainty of host galaxy extinction corrections. The other program {PI Faber/Ferguson} will discover SNe at z>1 crucial to studying the time evolution of the dark energy equation of state w but will not be able to follow all of the expected number of SNe due to insufficient orbits. With a little over twelve orbits per year while the MCT programs are running, we will follow and thus save this orphaned subset of 14 especially valuable SNe Ia.;

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