The Seventh Data Release of the Sloan Digital Sky Survey (2009)
Abazajian, Kevork N., Adelman-McCarthy, Jennifer K., Agüeros, Marcel A., Allam, Sahar S., Allende Prieto, Carlos, An, Deokkeun, ...
This paper describes the Seventh Data Release of the Sloan Digital Sky Survey (SDSS), marking the completion of the original goals of the SDSS and the end of the phase known as SDSS-II. It includes...
Constraints on local primordial non-Gaussianity from large scale structure (2008)
Slosar, Anže, Hirata, Christopher, Seljak, Uroš, Ho, Shirley, Padmanabhan, Nikhil
Recent work has shown that the local non-Gaussianity parameter fNL induces a scale dependent bias, whose amplitude is growing with scale. Here we first rederive this result within the context of the...
Constraints on local primordial non-Gaussianity from large scale structure (2008)
Slosar, Anže, Hirata, Christopher, Seljak, Uroš, Ho, Shirley, Padmanabhan, Nikhil
Recent work has shown that the local non-Gaussianity parameter fNL induces a scale dependent bias, whose amplitude is growing with scale. Here we first rederive this result within the context of the...
Ho, Shirley, Hirata, Christopher, Padmanabhan, Nikhil, Seljak, Uroš, Bahcall, Neta
We cross correlate large-scale structure (LSS) observations from a number of surveys with cosmic microwave background (CMB) anisotropies from the Wilkinson Microwave Anisotropy Probe (WMAP) to...
Ho, Shirley, Hirata, Christopher, Padmanabhan, Nikhil, Seljak, Uroš, Bahcall, Neta
We cross correlate large-scale structure (LSS) observations from a number of surveys with cosmic microwave background (CMB) anisotropies from the Wilkinson Microwave Anisotropy Probe (WMAP) to...
Correlation of CMB with large-scale structure. II. Weak lensing (2008)
Hirata, Christopher M., Ho, Shirley, Padmanabhan, Nikhil, Seljak, Uroš, Bahcall, Neta A.
We investigate the correlation of gravitational lensing of the cosmic microwave background (CMB) with several tracers of large-scale structure, including luminous red galaxies (LRGs), quasars, and...
A halo mass—concentration relation from weak lensing (2008)
Mandelbaum, Rachel, Seljak, Uroš, Hirata, Christopher M.
We perform a statistical weak lensing analysis of dark matter profiles around tracers of halo mass from galaxy-size to cluster-size halos. In this analysis we use 170 640 isolated ∼L∗ galaxies...
The sixth data release of the Sloan Digital Sky Survey (2008)
Adelman-McCarthy, Jennifer K., Agüeros, Marcel A., Allam, Sahar S., Prieto, Carlos Allende, Anderson, Kurt S. J., Anderson, Scott F., ...
This paper describes the Sixth Data Release of the Sloan Digital Sky Survey. With this data release, the imaging of the northern Galactic cap is now complete. The survey contains images and...
Cosmological constraints from the SDSS luminous red galaxies (2006)
Tegmark, Max, Eisenstein, Daniel J., Strauss, Michael A., Weinberg, David H., Blanton, Michael R., Frieman, Joshua A., ...
We measure the large-scale real-space power spectrum P(k) using luminous red galaxies (LRGs) in the Sloan Digital Sky Survey (SDSS) and use this measurement to sharpen constraints on cosmological...
Detectability of tensor modes in the presence of foregrounds (2005)
Amarie, Mihail, Hirata, Christopher M., Seljak, Uroš
In inflationary models gravitational waves are produced in the early universe and generate B-type polarization in the cosmic microwave background (CMB). Since B polarization is only generated by...
Can superhorizon cosmological perturbations explain the acceleration of the universe? (2005)
Hirata, Christopher M., Seljak, Uroš
We investigate the recent suggestions by Barausse et al. and Kolb et al. that the acceleration of the universe could be explained by large superhorizon fluctuations generated by inflation. We show...
Intrinsic alignment-lensing interference as a contaminant of cosmic shear (2004)
Hirata, Christopher M., Seljak, Uroš
Cosmic shear surveys have great promise as tools for precision cosmology, but can be subject to systematic errors including intrinsic ellipticity correlations of the source galaxies. The intrinsic...
Weak lensing and CMB: Parameter forecasts including a running spectral index (2004)
Ishak, Mustapha, Hirata, Christopher M., McDonald, Patrick, Seljak, Uroš
We use statistical inference theory to explore the constraints from future galaxy weak lensing (cosmic shear) surveys combined with the current CMB constraints on cosmological parameters, focusing...
Reconstruction of lensing from the cosmic microwave background polarization (2003)
Hirata, Christopher M., Seljak, Uroš
Gravitational lensing of the cosmic microwave background (CMB) polarization field has been recognized as a potentially valuable probe of the cosmological density field. We apply likelihood-based...
Analyzing weak lensing of the cosmic microwave background using the likelihood function (2003)
Hirata, Christopher M., Seljak, Uroš
Future experiments will produce high-resolution temperature maps of the cosmic microwave background (CMB) and are expected to reveal the signature of gravitational lensing by intervening large-scale...