English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We present cosmological constraints from a joint analysis of the pre- andpost-reconstruction galaxy power spectrum multipoles from the final datarelease of the Baryon Oscillation Spectroscopic Survey (BOSS). Geometricconstraints are obtained from the positions of BAO peaks in reconstructedspectra, analyzed in combination with the unreconstructed spectra in afull-shape (FS) likelihood using a joint covariance matrix, giving strongerparameter constraints than FS-only or BAO-only analyses. We introduce a newmethod for obtaining constraints from reconstructed spectra based on acorrelated theoretical error, which is shown to be simple, robust, andapplicable to any flavor of density-field reconstruction. Assuming $\Lambda$CDMwith massive neutrinos, we analyze data from two redshift bins$z_\mathrm{eff}=0.38,0.61$ and obtain $1.6\%$ constraints on the Hubbleconstant $H_0$, using only a single prior on the current baryon density$\omega_b$ from Big Bang Nucleosynthesis (BBN) and no knowledge of the powerspectrum slope $n_s$. This gives $H_0 =68.6\pm1.1\,\mathrm{km\,s}^{-1}\mathrm{Mpc}^{-1}$, with the inclusion of BAOdata sharpening the measurement by $40\%$, representing one of the strongestcurrent constraints on $H_0$ independent of cosmic microwave background data.Restricting to the best-fit slope $n_s$ from Planck (but without additionalpriors on the spectral shape), we obtain a $1\%$ $H_0$ measurement of $67.8\pm0.7\,\mathrm{km\,s}^{-1}\mathrm{Mpc}^{-1}$. We find strong constraints on thecosmological parameters from a joint analysis of the FS, BAO, and Planck data.This sets new bounds on the sum of neutrino masses $\sum m_\nu <0.14\,\mathrm{eV}$ (at $95\%$ confidence) and the effective number ofrelativistic degrees of freedom $N_\mathrm{eff} = 2.90^{+0.15}_{-0.16}$, thoughcontours are not appreciably narrowed by the inclusion of BAO data.

Combining Full-Shape and BAO Analyses of Galaxy Power Spectra: A 1.6% CMB-independent constraint on H0