228 Type Ia Supernovae from the ESSENCE Survey

Details 228 Type Ia Supernovae from the ESSENCE Survey 228 Type Ia Supernovae from the ESSENCE Survey

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21924219n&link_type=abstract

American Astronomical Society, AAS Meeting #219, #242.19

Astronomy and Astrophysics

Astronomy

Scientific paper

We present final light curves for 228 Type Ia Supernovae (SNIa) from the ESSENCE Survey. These objects were observed between 2002 and 2008 with the CTIO 4m telescope. We detail our efforts to improve our internal photometric consistency and absolute photometric calibration to the 1% level. We have obtained multi-band host galaxy photometry and spectroscopy where possible for a large fraction of our objects. We present a Hubble diagram for our six year sample combined with complementary SNIa measurements from several surveys.

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