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CMB lensing from Planck PR4 maps

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34 Pith papers citing it
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abstract

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 implement quadratic estimators using more optimal filtering. We increase the reconstruction signal to noise by almost $20\%$, constraining the amplitude of the CMB-marginalized lensing power spectrum in units of the Planck 2018 best-fit to $1.004 \pm 0.024$ ($68\%$ limits), which is the tightest constraint on the CMB lensing power spectrum to date. For a base $\Lambda$CDM cosmology we find $\sigma_8 \Omega_m^{0.25} = 0.599\pm 0.016$ from CMB lensing alone in combination with weak priors and element abundance observations. Combination with baryon acoustic oscillation data gives tight $68\%$ constraints on individual $\Lambda$CDM parameters $\sigma_8 = 0.814\pm 0.016$, $H_0 = 68.1^{+1.0}_{-1.1}$km s$^{-1}$ Mpc$^{-1}$, $\Omega_m = 0.313^{+0.014}_{-0.016}$. Planck polarized maps alone now constrain the lensing power to $7\%$.

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representative citing papers

Cosmological analysis of the DESI DR1 Lyman alpha 1D power spectrum

astro-ph.CO · 2026-01-29 · unverdicted · novelty 7.0

DESI DR1 Lyman-alpha data yields Δ²★=0.379±0.032 and n★=-2.309±0.019 at k★=0.009 km⁻¹s and z=3, sharpening N_eff, α_s, and β_s constraints by factors of 1.18-1.90 when combined with other probes.

Evolving Dark Energy Is Vacuum Energy After All

astro-ph.CO · 2026-06-18 · unverdicted · novelty 6.0

A QCD-vacuum-based model of dynamical dark energy fits Planck+ACT+SPT, DESI DR2, and supernova data while reproducing the late-time evolution favored by DESI.

Faster CMB lensing with control variates

astro-ph.CO · 2026-05-18 · unverdicted · novelty 6.0

A control variate technique using differenced estimates from realistic masked and isotropic simulations reduces the computational cost of CMB lensing bias calculations by a factor of three to five.

New Isocurvature Constraints from JWST UV Luminosity Function

astro-ph.CO · 2026-05-11 · unverdicted · novelty 6.0

First UVLF-based constraints on model-agnostic isocurvature power spectra for CDM, baryon, neutrino, and dark radiation modes yield consistent 95% credible envelopes over k ~ 0.5-10 Mpc^{-1}.

Bounding axion dark energy

astro-ph.CO · 2026-04-10 · unverdicted · novelty 6.0

An analytic bound on axion parameters in thawing quintessence is derived independently of initial conditions and used with cosmological observations plus quantum gravity constraints to exclude large regions of axion dark energy parameter space.

Non-minimally coupled quintessence with sign-switching interaction

astro-ph.CO · 2026-04-02 · unverdicted · novelty 6.0

A new quintessence model with non-minimal coupling produces an effective sign-switching interaction that fits current data better than LambdaCDM or w0waCDM and accounts for late-time dark energy weakening without phantom crossing.

Negative neutrino mass or negative dark energy?

astro-ph.CO · 2026-05-20 · unverdicted · novelty 5.0

A sign-switching dark energy model (Λ_s CDM) recovers positive effective neutrino masses (0.055 ± 0.050 eV) consistent with oscillation data, unlike ΛCDM which prefers negative values (-0.075 eV), for DESI DR2 + CMB + supernova fits with z_† > 2.4.

Measuring neutrino mass in light of ACT DR6 and DESI DR2

astro-ph.CO · 2026-03-11 · unverdicted · novelty 5.0

New ACT and DESI data yield model-dependent upper limits on sum of neutrino masses, with holographic dark energy giving the tightest bounds and a consistent preference for degenerate hierarchy.

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Showing 34 of 34 citing papers.