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astro-ph2005
UBVRI Light Curves of 44 Type Ia Supernovae
Saurabh Jha, Robert P. Kirshner, Peter Challis +2
We present UBVRI photometry of 44 type-Ia supernovae (SN Ia) observed from 1997 to 2001 as part of a continuing monitoring campaign at the Fred Lawrence Whipple Observatory of the…
astro-ph2005
Caustic and Weak Lensing Estimators of Galaxy Cluster Masses
Antonaldo Diaferio, Margaret J. Geller, Kenneth J. Rines
There are only two methods for estimating the mass distribution in the outer regions of galaxy clusters, where virial equilibrium does not hold: weak gravitational lensing and iden…