Critical Parameters for Supernova Cosmology

Details Critical Parameters for Supernova Cosmology Critical Parameters for Supernova Cosmology

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...209.9817w&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #98.17; Bulletin of the American Astronomical Society, V

Astronomy and Astrophysics

Astronomy

Scientific paper

We investigate the values of some critical parameters for next generation supernova cosmology studies. These include: (1) the intrinsic magnitude dispersion after light curve width and color correction; (2) the parameters that quantifies spectral features of Type Ia supernovae; (3) the parameters that describe the light curve and color curve shapes of Type Ia supernovae. We present results of a principle component and independent component analysis (PCA and ICA) of supernova properties based on our newly developed error weighted PCA and ICA algorithms. We present various scenarios that these studies may help in controlling systematic errors of future supernova cosmology experiment such as SNAP.

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