English
Related papers

Related papers: Modeling CMB Lensing Cross Correlations with {\sc …

200 papers

We present a formalism for jointly fitting pre- and post-reconstruction redshift-space clustering (RSD) and baryon acoustic oscillations (BAO) plus gravitational lensing (of the CMB) that works directly with the observed 2-point statistics.…

Cosmology and Nongalactic Astrophysics · Physics 2022-08-03 Shi-Fan Chen , Martin White , Joseph DeRose , Nickolas Kokron

Yes! Upcoming galaxy shear surveys have the potential to significantly improve our understanding of dark energy and neutrino mass if lensing systematics can be sufficiently controlled. The cross-correlations between the weak lensing shear,…

Cosmology and Nongalactic Astrophysics · Physics 2013-11-12 Sudeep Das , Josquin Errard , David Spergel

We present results from cross-correlating Planck CMB lensing maps with the Sloan Digital Sky Survey (SDSS) galaxy lensing shape catalog and BOSS galaxy catalogs. For galaxy position vs. CMB lensing cross-correlations, we measure the…

Cosmology and Nongalactic Astrophysics · Physics 2016-11-15 Sukhdeep Singh , Rachel Mandelbaum , Joel R. Brownstein

We present an improved and extended analysis of the cross-correlation between the map of the Cosmic Microwave Background (CMB) lensing potential derived from the \emph{Planck} mission data and the high-redshift galaxies detected by the…

Cross-correlations between the galaxy number density in a lensing source sample and that in an overlapping spectroscopic sample can in principle be used to calibrate the lensing source redshift distribution. In this paper, we study in…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 Roland de Putter , Olivier Doré , Sudeep Das

We study synergies between three promising methods to measure $2<z<5$ large-scale structure in the next decade. Optical spectroscopic surveys are the most mature, but become increasingly difficult at $z>2$ and suffer from interloper…

Cosmology and Nongalactic Astrophysics · Physics 2019-07-24 Shi-Fan Chen , Emanuele Castorina , Martin White , Anže Slosar

We study the impact of lensing corrections on modeling cross correlations between CMB lensing and galaxies, cosmic shear and galaxies, and galaxies in different redshift bins. Estimating the importance of these corrections becomes necessary…

Cosmology and Nongalactic Astrophysics · Physics 2020-04-01 Vanessa Böhm , Chirag Modi , Emanuele Castorina

Upcoming cosmic microwave background (CMB) experiments are expected to detect new signals probing interaction of CMB photons with intervening large-scale structure. Among these the moving-lens effect, the CMB temperature anisotropy induced…

Cosmology and Nongalactic Astrophysics · Physics 2024-01-24 Selim C. Hotinli , Elena Pierpaoli

We introduce here a cross-correlation term between CMB lensing and galaxy intrinsic alignment, noted hereby as $\phi I$. This effect acts as a contaminant to the cross-correlation between CMB lensing and galaxy lensing. The latter…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-18 M. A. Troxel , Mustapha Ishak

We study the cross-correlation between the Planck CMB lensing convergence map and the eBOSS quasar overdensity obtained from the Sloan Digital Sky Survey (SDSS) IV, in the redshift range $0.9 < z < 2.2$. We detect the CMB lensing…

Cosmology and Nongalactic Astrophysics · Physics 2019-03-05 Jiashu Han , Simone Ferraro , Elena Giusarma , Shirley Ho

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 correlation, that has most of his power on large…

Astrophysics · Physics 2008-11-26 Pablo Fosalba , Olivier Doré

The rapidly improving precision of measurements of gravitational lensing of the Cosmic Microwave Background (CMB) also requires a corresponding increase in the precision of theoretical modeling. A commonly made approximation is to model the…

Cosmology and Nongalactic Astrophysics · Physics 2016-08-24 Vanessa Böhm , Marcel Schmittfull , Blake D. Sherwin

The neutral hydrogen (HI) signal is a crucial probe for astrophysics and cosmology, but it is quite challenging to measure from raw data because of bright foreground contaminants at radio wavelengths. Cross-correlating the radio…

Cosmology and Nongalactic Astrophysics · Physics 2025-03-27 Alessandro Marins , Chang Feng , Filipe B. Abdalla

CMB lensing reconstructions are a sensitive probe of the growth of structure across cosmic time and a key tool to sharpen investigations of the very early Universe via delensing. At present, a large fraction of this information is drawn…

Cosmology and Nongalactic Astrophysics · Physics 2026-03-02 A. Baleato Lizancos , W. Coulton , A. Challinor , B. D. Sherwin , Y. Mehta

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 projected sum of a multitude of…

Astrophysics · Physics 2009-11-10 Olivier Doré , Joseph F. Hennawi , David N. Spergel

We seek to prove the means, motive and opportunity of 2 < z < 5 dropout galaxies for large-scale structure. Together with low-z tracers, these samples would map practically every linear mode and facilitate a tomographic decomposition of the…

Cosmology and Nongalactic Astrophysics · Physics 2019-10-09 Michael J. Wilson , Martin White

Large scale structure deflects cosmic microwave background (CMB) photons. Since large angular scales in the large scale structure contribute significantly to the gravitational lensing effect, a realistic simulation of CMB lensing requires a…

Astrophysics · Physics 2009-11-13 Sudeep Das , Paul Bode

We cross-correlate cosmic microwave background (CMB) lensing and galaxy weak lensing maps using the Planck 2013 and 2015 data and the 154 deg^2 Canada-France-Hawaii Telescope Lensing Survey (CFHTLenS). This measurement probes large-scale…

Cosmology and Nongalactic Astrophysics · Physics 2015-10-05 Jia Liu , J. Colin Hill

Gravitational lensing information from the two and higher point statistics of the CMB temperature and polarization fields are intrinsically correlated because they are lensed by the same realization of structure between last scattering and…

Cosmology and Nongalactic Astrophysics · Physics 2017-03-01 Pavel Motloch , Wayne Hu , Aurélien Benoit-Lévy