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The Power Spectrum of the Sunyaev-Zel'dovich Effect
A. Refregier, E. Komatsu, D. N. Spergel +1
(Abridged) The hot gas in the IGM produces anisotropies in the Cosmic Microwave Background (CMB) through the thermal Sunyaev-Zel'dovich (SZ) effect. The SZ effect is a powerful pro…
Friedmann Equation and Stability of Inflationary Higher Derivative Gravity
W. F. Kao, Ue-Li Pen, Pengjie Zhang
Stability analysis on the De Sitter universe in pure gravity theory is known to be useful in many aspects. We first show how to complete the proof of an earlier argument based on a…
Cosmic Shear from Galaxy Spins
Jounghun Lee, Ue-Li Pen
We discuss the origin of galactic angular momentum, and the statistics of the present day spin distribution. It is expected that the galaxy spin axes are correlated with the interm…
Strong Lensing Reconstruction
Ue-Li Pen
We present a general linear algorithm for measuring the surface mass density 1-κfrom the observable reduced shear g=γ/(1-κ) in the strong lensing regime. We show that in general, t…
The Santa Barbara cluster comparison project: a comparison of cosmological hydrodynamics solutions
C. S. Frenk, S. D. M. White, P. Bode +22
We have simulated the formation of an X-ray cluster in a cold dark matter universe using 12 different codes. The codes span the range of numerical techniques and implementations cu…
Brief Note: Analytical Fit to the Luminosity Distance for Flat Cosmologies with a Cosmological Constant
Ue-Li Pen
We present a fitting formula for the luminosity and angular diameter distances in cosmological models with pressureless matter, a cosmological constant and zero spatial curvature.…