Measuring OL and OM using Type Ia Supernovae at 0.2 < z < 1.0

Details Measuring OL and OM using Type Ia Supernovae at 0.2 < z < 1.0 Measuring OL and OM using Type Ia Supernovae at 0.2 < z < 1.0

Feb 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999noao.prop..288p&link_type=abstract

NOAO Proposal ID #1999A-0288

Physics

Scientific paper

We propose to use the BTC to finish our successful study of > 70 Type Ia supernovae (SNe Ia) at redshifts 0.2< z< 0.9. Our goal is to simultaneously measure OLns, OM and bound the curvature, Ω_k=1- OM-OL, using SNe Ia as distance indicators. This last phase of our project is focused on obtaining final reference images of the SNe Ia we have discovered over the past year (19 active SNe from our previous runs). These supernovae were observed extensively from the ground and 8 of them were observed by HST with WFPC and NICMOS. High quality R and I-band photometry (high signal-to-noise and good seeing) of the host galaxy long after the supernova has faded away is needed in order to properly subtract out the host galaxy light underneath the supernova in our previous observations.

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