SNAP: The Power of Supernovae, Weak Lensing, and Space

Details SNAP: The Power of Supernovae, Weak Lensing, and Space SNAP: The Power of Supernovae, Weak Lensing, and Space

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...209.9807l&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #98.07; Bulletin of the American Astronomical Society, V

Astronomy and Astrophysics

Astronomy

Scientific paper

Space provides unique capabilities for highly accurate data sets that enable robust tests of the nature of dark energy. Supernovae can be tightly characterized over the full optimal leverage redshift range of z=0.1-1.7 with a homogeneous, well calibrated sample. Weak gravitational lensing measurements enjoy depth, high resolution, stable point spread functions, and shear calibrations each with improvements of 3-10 times over ground based levels. Morover, full optical and near infrared coverage produces highly accurate galaxy photometric redshifts for lensing tomography and galaxy studies. SNAP's tight systematics control, plus its complementarity of supernovae and weak lensing, provide a clear path to understanding dark energy, while generating some one million Hubble Deep Field quality images, in nine bands.

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