2.4k citations · 12.4k across the 74 of their papers we have counts for
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Unified and consistent structure growth measurements from joint ACT, SPT and \textit{Planck} CMB lensing
Frank J. Qu, Fei Ge, W. L. Kimmy Wu +143
We present the tightest cosmic microwave background (CMB) lensing constraints to date on the growth of structure by combining CMB lensing measurements from the Atacama Cosmology Te…
Modified gravity constraints with Planck ISW-lensing bispectrum
Anton Chudaykin, Martin Kunz, Julien Carron
We present updated constraints on modified gravity by including the Integrated Sachs-Wolfe (ISW) effect from CMB lensing-CMB temperature cross-correlations, based on the latest Pla…
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…
Improved cosmic microwave background (de-)lensing using general spherical harmonic transforms
Martin Reinecke, Sebastian Belkner, Julien Carron
Deep cosmic microwave background polarization experiments allow a very precise internal reconstruction of the gravitational lensing signal in pricinple. For this aim, likelihood-ba…
The Atacama Cosmology Telescope: A Measurement of the DR6 CMB Lensing Power Spectrum and its Implications for Structure Growth
Frank J. Qu, Blake D. Sherwin, Mathew S. Madhavacheril +155
We present new measurements of cosmic microwave background (CMB) lensing over sq. deg. of the sky. These lensing measurements are derived from the Atacama Cosmology Telescop…
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…
Foreground Separation and Constraints on Primordial Gravitational Waves with the PICO Space Mission
Ragnhild Aurlien, Mathieu Remazeilles, Sebastian Belkner +13
PICO is a concept for a NASA probe-scale mission aiming to detect or constrain the tensor to scalar ratio , a parameter that quantifies the amplitude of inflationary gravity wav…
Planck ISW-lensing likelihood and the CMB temperature
Julien Carron, Antony Lewis, Giulio Fabbian
We present a new Planck CMB lensing-CMB temperature cross-correlation likelihood that can be used to constrain cosmology via the Integrated Sachs-Wolfe (ISW) effect. CMB lensing is…
Real-world CMB lensing quadratic estimator power spectrum response
Julien Carron
I describe a method to estimate response matrices of Cosmic Microwave Background (CMB) lensing power spectra estimators to the true sky power under realistic conditions. Applicable…
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 from Planck PR4 maps
Julien Carron, Mark Mirmelstein, Antony Lewis
We reconstruct the Cosmic Microwave Background (CMB) lensing potential on the latest Planck CMB PR4 (NPIPE) maps, which include slightly more data than the 2018 PR3 release, and im…
Constraints on from Planck temperature and polarization
Kareem Marzouk, Antony Lewis, Julien Carron
We update constraints on the amplitude of the primordial trispectrum, using the final Planck mission temperature and polarization data. In the squeezed limit, a cosmological local…
Forecasts on CMB lensing observations with AliCPT-1
Jinyi Liu, Zeyang Sun, Jiakang Han +18
AliCPT-1 is the first Chinese CMB experiment aiming for high precision measurement of Cosmic Microwave Background B-mode polarization. The telescope, currently under deployment in…
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…
An Estimator for the lensing potential from galaxy number counts
Viraj Nistane, Mona Jalilvand, Julien Carron +2
We derive an estimator for the lensing potential from galaxy number counts which contains a linear and a quadratic term. We show that this estimator has a much larger signal-to-noi…
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 Simons Observatory: Constraining inflationary gravitational waves with multi-tracer B-mode delensing
Toshiya Namikawa, Anton Baleato Lizancos, Naomi Robertson +32
We introduce and validate a delensing framework for the Simons Observatory (SO), which will be used to improve constraints on inflationary gravitational waves (IGWs) by reducing th…
CMB lensing reconstruction biases from masking extragalactic sources
Margherita Lembo, Giulio Fabbian, Julien Carron +1
Observed Cosmic Microwave Background (CMB) maps are contaminated by foregrounds, some of which are usually masked to perform cosmological analyses. If masks are correlated to the l…
Quadratic estimators for CMB weak lensing
Abhishek S. Maniyar, Yacine Ali-Haïmoud, Julien Carron +2
In recent years, weak lensing of the cosmic microwave background (CMB) has emerged as a powerful tool to probe fundamental physics, such as neutrino masses, primordial non-Gaussian…
Lensed CMB power spectrum biases from masking extragalactic sources
G. Fabbian, J. Carron, A. Lewis +1
The cosmic microwave background (CMB) is gravitationally lensed by large-scale structure, which distorts observations of the primordial anisotropies in any given direction. Average…
The Simons Observatory: gain, bandpass and polarization-angle calibration requirements for B-mode searches
Maximilian H. Abitbol, David Alonso, Sara M. Simon +45
We quantify the calibration requirements for systematic uncertainties for next-generation ground-based observatories targeting the large-angle -mode polarization of the Cosmic M…
Limitations of CMB B-mode template delensing
Antón Baleato Lizancos, Anthony Challinor, Julien Carron
Efforts to detect a primordial -mode of CMB polarization generated by inflationary gravitational waves ought to mitigate the large variance associated with the -modes produce…
CMB-S4: Forecasting Constraints on Primordial Gravitational Waves
S4 Collaboration, Kevork Abazajian, Graeme E. Addison +233
CMB-S4---the next-generation ground-based cosmic microwave background (CMB) experiment---is set to significantly advance the sensitivity of CMB measurements and enhance our underst…