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Found 16 papers, 5 papers with code
Full-sky Gravitational Lensing Simulation for Large-area Galaxy Surveys and Cosmic Microwave Background Experiments
The data sets include full-sky convergence and shear maps from redshifts $z=0. 05$ to $5. 3$ at intervals of $150 \, h^{-1}{\rm Mpc}$ comoving radial distance (corresponding to a redshift interval of $\Delta z \simeq 0. 05$ at the nearby universe), enabling the construction of a mock shear catalog for an arbitrary source distribution up to $z=5. 3$.
Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology
Lensing reconstruction from a patchwork of polarization maps
The lensing signals involved in CMB polarization maps have already been measured with ground-based experiments such as SPTpol and POLARBEAR, and would become important as a probe of cosmological and astrophysical issues in the near future.
Cosmology and Nongalactic Astrophysics Instrumentation and Methods for Astrophysics
Constraints on Patchy Reionization from Planck CMB Temperature Trispectrum
We present constraints on the patchy reionization by measuring the trispectrum of the Planck 2015 cosmic microwave background (CMB) temperature anisotropies.
Cosmology and Nongalactic Astrophysics
The Atacama Cosmology Telescope: Constraints on Cosmic Birefringence
We present new constraints on anisotropic birefringence of the cosmic microwave background polarization using two seasons of data from the Atacama Cosmology Telescope covering $456$ square degrees of sky.
Cosmology and Nongalactic Astrophysics High Energy Physics - Experiment High Energy Physics - Phenomenology
The Atacama Cosmology Telescope: Delensed Power Spectra and Parameters
Our results show that gravitational lensing of the microwave background is internally consistent within the framework of the standard cosmological model.
Cosmology and Nongalactic Astrophysics High Energy Physics - Phenomenology
Bias-Hardened CMB Lensing
We present new methods for lensing reconstruction from CMB temperature fluctuations which have smaller mean-field and reconstruction noise bias corrections than current lensing estimators, with minimal loss of signal-to-noise.
Cosmology and Nongalactic Astrophysics
Bias-Hardened CMB Lensing with Polarization
The contamination from beam asymmetry and polarization angle uncertainties, however, can generate mean-field biases for the EB estimator.
Cosmology and Nongalactic Astrophysics
Testing parity-violating physics from cosmic rotation power reconstruction
We study the reconstruction of the cosmic rotation power spectrum produced by parity-violating physics, with an eye to ongoing and near future cosmic microwave background (CMB) experiments such as BICEP Array, CMBS4, LiteBIRD and Simons Observatory.
Cosmology and Nongalactic Astrophysics High Energy Physics - Phenomenology High Energy Physics - Theory
CMB internal delensing with general optimal estimator for higher-order correlations
We present a new method for delensing $B$ modes of the cosmic microwave background (CMB) using a lensing potential reconstructed from the same realization of the CMB polarization (CMB internal delensing).
Cosmology and Nongalactic Astrophysics
Geometry and growth contributions to cosmic shear observables
We explore the sensitivity of weak lensing observables to the expansion history of the universe and to the growth of cosmic structures, as well as the relative contribution of both effects to constraining cosmological parameters.
Cosmology and Nongalactic Astrophysics
CMB lensing bi-spectrum: assessing analytical predictions against full-sky lensing simulations
Following on an earlier paper, we test analytical predictions of the CMB lensing bi-spectrum against full-sky lensing simulations, and discuss their validity and limitation in detail.
Cosmology and Nongalactic Astrophysics
The Atacama Cosmology Telescope: A CMB lensing mass map over 2100 square degrees of sky and its cross-correlation with BOSS-CMASS galaxies
We construct cosmic microwave background lensing mass maps using data from the 2014 and 2015 seasons of observations with the Atacama Cosmology Telescope (ACT).
Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies
Analyzing clustering of astrophysical gravitational-wave sources: Luminosity-distance space distortions
We present a formulation of observed number density fluctuations of gravitational-wave (GW) sources in a three dimensional space.
Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology
Delensing the CMB with the cosmic infrared background: the impact of foregrounds
We also show, by means of an analytic model, that the bias arising from the higher-point functions of the CIB itself ought to be negligible.
Cosmology and Nongalactic Astrophysics
Constraining reionization with the first measurement of the cross-correlation between the CMB optical-depth fluctuations and the Compton y-map
Since the power spectrum of the electron density fluctuations is constrained by the $\delta\tau$ auto spectrum, the temperature constraints should be only weakly model-dependent on the details of the electron distributions and should be statistically representative of the temperature in ionized bubbles during reionization.
PICO
Cosmology and Nongalactic Astrophysics
Astrophysics of Galaxies
The Atacama Cosmology Telescope: Summary of DR4 and DR5 Data Products and Data Access
Two recent large data releases for the Atacama Cosmology Telescope (ACT), called DR4 and DR5, are available for public access.
Cosmology and Nongalactic Astrophysics
