The Carnegie Supernova Project: First Results of the High-z Campaign

Details The Carnegie Supernova Project: First Results of the High-z Campaign The Carnegie Supernova Project: First Results of the High-z Campaign

May 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21442702b&link_type=abstract

American Astronomical Society, AAS Meeting #214, #427.02; Bulletin of the American Astronomical Society, Vol. 41, p.696

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One goal of the Carnegie Supernova Project (CSP) is to constrain the Dark Energy content of the universe using Type Ia supernovae. The CSP differs from other projects in that it has constructed a rest-frame i'-band Hubble diagram, thereby reducing the systematic effects of reddening. We also utilize an independent set of low-redshift Type Ia supernovae observed in a single, well-characterized photometric system. In this poster, we present initial results obtained from the near-infrared observations of 35 high-redshift supernovae. These data are combined with optical data from other supernova projects to construct a Hubble diagram which is used to place constrains on the equation of state parameter, w. Our results are in an agreement with other groups and are consistent with a cosmological constant.

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