Supernova Science and Cosmology with the LSST

Details Supernova Science and Cosmology with the LSST Supernova Science and Cosmology with the LSST

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...209.8611w&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #86.11; Bulletin of the American Astronomical Society, V

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The LSST will open up new opportunities for supernovae and supernova cosmology. In addition to repeated coverage of much of the visible sky, which will result in tens of thousands of Type Ia supernovae at redshifts less than 0.2 and one million Type Ia supernovae out to a redshift of 1, a special deep-drilling survey will focus on finding tens of thousands of Type Ia supernova out to redshifts of 1.2. This redshift span will provide a very good range for investigations of the dark energy equation-of-state parameter with the precision of a self-consistently calibrated system. The concern for future supernova cosmology experiments is generally with the systematics rather than the statistics; we observe that the unprecedented number of supernovae that will be found by the precisely-calibrated LSST system will provide a means to detect and calibrate many of these important systematic effects. Supernovae of all types will be discovered by LSST and we anticipate that the wealth of data provided will allow many questions of supernova progenitor and late-stage stellar evolution to be addressed by a combination of the supernovae found by the LSST extra-galactic survey and the survey of the billions of stars in our own galaxy. We present here the expected numbers, distribution, and coverage of supernovae based on the nominal LSST cadence program and discuss the opportunities for supernova and cosmological science from the resulting rich supernova dataset.

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