2 code implementations • 10 Dec 2019 • Marco Raveri, Georgios Zacharegkas, Wayne Hu
The suite of best estimators that we discuss finds results that are in excellent agreement between estimators and find no indications of significant internal inconsistencies in this data set above the $1\%$ probability threshold.
Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies
2 code implementations • 12 Jun 2018 • Marco Raveri, Wayne Hu
We apply them to a wide range of state of the art cosmological probes and show that these estimators can be easily used, regardless of model and data complexity.
Cosmology and Nongalactic Astrophysics
no code implementations • 22 Aug 2008 • Wenjuan Fang, Wayne Hu, Antony Lewis
Dark energy models with a single scalar field cannot cross the equation of state divide set by a cosmological constant.
astro-ph
no code implementations • 3 Jan 2003 • Takemi Okamoto, Wayne Hu
Gravitational lensing of the microwave background by the intervening dark matter mainly arises from large-angle fluctuations in the projected gravitational potential and hence offers a unique opportunity to study the physics of the dark sector at large scales.
astro-ph
no code implementations • 18 Jan 2000 • Wayne Hu
Weak lensing of CMB anisotropies and polarization for the power spectra and higher order statistics can be handled directly in harmonic-space without recourse to real-space correlation functions.
astro-ph
1 code implementation • 24 Jan 1998 • Wayne Hu
With this in mind, we introduce a phenomenological model for a generalized dark matter (GDM) component and discuss its effect on large-scale structure and CMB anisotropies.
astro-ph
no code implementations • 23 Oct 1997 • Daniel J. Eisenstein, Wayne Hu
The bulk of recent cosmological research has focused on the adiabatic cold dark matter model and its simple extensions.
astro-ph
1 code implementation • 12 Sep 1997 • Daniel J. Eisenstein, Wayne Hu
We provide scaling relations and fitting formulae for adiabatic cold dark matter cosmologies that account for all baryon effects in the matter transfer function to better than 10% in the large-scale structure regime.
no code implementations • 9 Sep 1997 • Wayne Hu, Uros Seljak, Martin White, Matias Zaldarriaga
We generalize the total angular momentum method for computing Cosmic Microwave Background anisotropies to Friedman-Robertson-Walker (FRW) spaces with arbitrary geometries.
astro-ph
