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8 papers · 1 filter
Mining Weak Lensing Surveys
N. Padmanabhan, U. Seljak, U. L. Pen
We present a survey of the cosmological applications of the next generation of weak lensing surveys, paying special attention to the computational challenges presented by the numbe…
CMB observations with the Cosmic Background Imager (CBI) Interferometer
C. R. Contaldi, J. R. Bond, D. Pogosyan +10
We review the recently published results from the CBI's first season of observations. Angular power spectra of the CMB were obtained from deep integrations of 3 single fields cover…
Hydrodynamical Simulations of the IGM at High Mach Numbers
Hy Trac, Pengjie Zhang, Ue-Li Pen
We present a new approach to doing Eulerian computational fluid dynamics that is designed to work at high Mach numbers encountered in hydrodynamical simulations of the IGM. In conv…
A Primer on Eulerian Computational Fluid Dynamics for Astrophysics
Hy Trac, Ue-Li Pen
We present a pedagogical review of some of the methods employed in Eulerian computational fluid dynamics (CFD). Fluid mechanics is governed by the Euler equations, which are conser…
Cosmological Parameters from CMB measurements with the CBI
C. R. Contaldi, J. R. Bond, D. Pogosyan +10
We derive cosmological parameters from the CBI measurements of the Cosmic Microwave Background (CMB) angular power spectrum. Our results provide an independent confirmation of the…
Optical monitoring of the gravitationally lensed quasar Q2237+0305 from APO between June 1995 and January 1998
R. W. Schmidt, T. Kundic, U. -L. Pen +12
We present a data set of images of the gravitationally lensed quasar Q2237+0305, that was obtained at the Apache Point Observatory (APO) between June 1995 and January 1998. Althoug…