53 citations · 175 across the 12 of their papers we have counts for
12 papers
An iterative CMB lensing estimator minimizing instrumental noise bias
Louis Legrand, Blake Sherwin, Anthony Challinor +2
Noise maps from CMB experiments are generally statistically anisotropic, due to scanning strategies, atmospheric conditions, or instrumental effects. Any mis-modeling of this compl…
Characterizing CMB noise anisotropies from CMB delensing
Louis Legrand, Julien Carron
Un-doing the effect of gravitational lensing on the Cosmic Microwave Background (`de-lensing') is essential in shaping constraints on weak signals limited by lensing effects on the…
Non-Gaussian deflections in iterative optimal CMB lensing reconstruction
Omar Darwish, Sebastian Belkner, Louis Legrand +2
The gravitational lensing signal from the Cosmic Microwave Background is highly valuable to constrain the growth of the structures in the Universe in a clean and robust manner over…
CMB-S4: Iterative Internal Delensing and Constraints
Sebastian Belkner, Julien Carron, Louis Legrand +3
The tightest constraints on the tensor-to-scalar ratio can only be obtained after removing a substantial fraction of the lensing -mode sample variance. The planned CMB-S4 ex…
Cluster profiles from beyond-the-QE CMB lensing mass maps
Sayan Saha, Louis Legrand, Julien Carron
Clusters of galaxies, being the largest collapsed structures in the universe, offer valuable insights into the nature of cosmic evolution. Precise calibration of the mass of cluste…
Robust and efficient CMB lensing power spectrum from polarization surveys
Louis Legrand, Julien Carron
Deep surveys of the CMB polarization have more information on the lensing signal than the quadratic estimators (QE) can capture. We showed in a recent work that a CMB lensing power…
Efficient computation of the super-sample covariance for stage IV galaxy surveys
Fabien Lacasa, Marie Aubert, Philippe Baratta +6
Super-sample covariance (SSC) is an important effect for cosmological analyses that use the deep structure of the cosmic web; it may, however, be nontrivial to include it practical…
CMB lensing power spectrum with next generation surveys
Louis Legrand, Julien Carron
We introduce a new estimator of the CMB lensing power spectrum, together with its likelihood, based on iterative lensing reconstruction. Despite the increased complexity of the len…
Snowmass 2021 CMB-S4 White Paper
Kevork Abazajian, Arwa Abdulghafour, Graeme E. Addison +353
This Snowmass 2021 White Paper describes the Cosmic Microwave Background Stage 4 project CMB-S4, which is designed to cross critical thresholds in our understanding of the origin a…
Snowmass2021 Cosmic Frontier: Cosmic Microwave Background Measurements White Paper
Clarence L. Chang, Kevin M. Huffenberger, Bradford A. Benson +128
This is a solicited whitepaper for the Snowmass 2021 community planning exercise. The paper focuses on measurements and science with the Cosmic Microwave Background (CMB). The CMB…
Lensing power spectrum of the Cosmic Microwave Background with deep polarization experiments
Louis Legrand, Julien Carron
Precise reconstruction of the cosmic microwave background lensing potential can be achieved with deep polarization surveys by iteratively removing lensing-induced modes. We int…
The COSMOS-UltraVISTA stellar-to-halo mass relationship: new insights on galaxy formation efficiency out to
Louis Legrand, Henry Joy McCracken, Iary Davidzon +7
Using precise galaxy stellar mass function measurements in the COSMOS field we determine the stellar-to-halo mass relationship (SHMR) using a parametric abundance matching techniqu…