Measuring OM and OL from Multi-band Photometry of High Redshift Supernovae Ia

Details Measuring OM and OL from Multi-band Photometry of High Redshift Supernovae Ia Measuring OM and OL from Multi-band Photometry of High Redshift Supernovae Ia

Feb 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999noao.prop..326p&link_type=abstract

NOAO Proposal ID #1999A-0326

Physics

Scientific paper

We propose to use WIYN to obtain final reference images of 19 high redshift 0.4< z< 0.9 Type Ia Supernovae discovered during the 1997 and 1998 observing seasons at CTIO. Our goal is to simultaneously measure OL and OM and bound the curvature, Ω_k=1-OM-OL, using SNe Ia as distance indicators. This phase of our project is focused on obtaining final reference images of 19 SNe Ia we have discovered over the past year. These supernovae were observed extensively from the ground and 11 have been 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 the host galaxy light underneath the supernova in our previous observations.

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