Dark Energy from Large-Scale Structure Lensing Information (2009)
Lu, Tingting, Pen, Ue-Li, Doré, Olivier
Wide area Large-Scale Structure (LSS) surveys are planning to map a substantial fraction of the visible universe to quantify dark energy through Baryon Acoustic Oscillations (BAO). At increasing...
The Non-Linear Fisher Information content of cosmic shear surveys (2009)
Doré, Olivier, Lu, Tingting, Pen, Ue-Li
We quantify the Fisher information content of the cosmic shear survey two-point function as a function of noise and resolution. The two point information of dark matter saturates at the trans-linear...
Testing gravity using weak gravitational lensing and redshift surveys (2008)
Song, Yong-Seon, Doré, Olivier
Using the linear theory of perturbations in General Relativity, we express a set of consistency relations that can be observationally tested with current and future large scale structure surveys. We...
CMBPol Mission Concept Study: Gravitational Lensing (2008)
Smith, Kendrick M., Cooray, Asantha, Das, Sudeep, Doré, Olivier, Hanson, Duncan, Hirata, Chris, ...
Gravitational lensing of the cosmic microwave background by large-scale structure in the late universe is both a source of cosmological information and a potential contaminant of primordial gravity...
Dalal, Neal, Doré, Olivier, Huterer, Dragan, Shirokov, Alexander
We study the effect of primordial nongaussianity on large-scale structure, focusing upon the most massive virialized objects. Using analytic arguments and N-body simulations, we calculate the mass...
The Signature of Patchy Reionization in the Polarization Anisotropy of the CMB (2007)
Doré, Olivier, Holder, Gil, Alvarez, Marcelo, Iliev, Ilian T., Mellema, Garrelt, Pen, Ue-Li, ...
The inhomogeneous ionization state of the universe when the first sources of ionizing radiation appeared should lead to anisotropies in the polarization of the cosmic microwave background. We use...
Probing the Largest Cosmological Scales with the CMB-Velocity Correlation (2007)
Cross-correlation between the CMB and large-scale structure is a powerful probe of dark-energy and gravity on the largest physical scales. We introduce a novel estimator, the CMB-velocity...
The Cosmic Reionization History as Revealed by the CMB Doppler--21-cm Correlation (2005)
Alvarez, Marcelo A., Komatsu, Eiichiro, Doré, Olivier, Shapiro, Paul R.
We show that the epoch(s) of reionization when the ionization fraction of the universe is about half can be determined by correlating Cosmic Microwave Background (CMB) temperature maps with 21-cm...
Doré, Olivier, Hennawi, Joseph F., Spergel, David N.
Secondary anisotropies of the CMB have the potential to reveal intricate details about the history of our universe between the present and recombination epochs. However, because the CMB we observe is...
The CMB Quadrupole in a Polarized Light (2003)
Doré, Olivier, Holder, Gilbert P., Loeb, Abraham
The low quadrupole of the cosmic microwave background (CMB), measured by COBE and confirmed by WMAP, has generated much discussion recently. We point out that the well-known correlation between...
We review the implications of having a non-trivial matter component in the universe and the potential for detecting such a component through the matter power spectrum and ISW effect. We adopt a...
Skeleton as a probe of the cosmic web: the 2D case (2003)
Novikov, Dimitri, Colombi, Stephane, Doré, Olivier
We discuss the skeleton as a probe of the filamentary structures of a 2D random field. It can be defined for a smooth field as the ensemble of pairs of field lines departing from saddle points,...
Are Chaplygin gases serious contenders to the dark energy throne? (2003)
We study the implications on both background and perturbation evolution of introducing a Chaplygin gas component in the universe's ingredients. We perform likelihood analyses using wide-ranging,...
Joint Analysis of CMB Temperature and Polarization Power Spectra (2002)
Munshi, Dipak, Challinor, Anthony D., Doré, Olivier, Mortlock, Daniel J., Efstathiou, George P.
This paper has been withdrawn. It was an early draft submitted prematurely in error. A complete version is to be submitted shortly.
Gravitational Potential Reconstruction from Peculiar Velocity and Weak Lensing Measurements (2002)
Doré, Olivier, Knox, Lloyd, Peel, Alan
We present an analytic method for rapidly forecasting the accuracy of gravitational potential reconstruction possible from measurement of radial peculiar velocities of every galaxy cluster with M >...