A new model emphasizing secondary mass features and pairing transitions improves spectral siren H0 constraints by ~30% using 142 GW events from GWTC-4.0.
Unveiling the Universe with emerging cosm ological probes,
9 Pith papers cite this work, alongside 7 external citations. Polarity classification is still indexing.
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Stacking 3455 CHIME/FRB sightlines on 1288 SDSS voids shows a 3.2 sigma DM deficit toward centers, implying 60 percent baryon underdensity consistent with galaxy underdensity and hydrodynamical simulations.
Heliospheric plasma lensing and ENA contamination bias local distance-ladder photometry, accounting for a realistic 3–8 % of the Hubble tension after anisotropy and calibration effects.
Four BAO-based estimators of the sound-horizon ratio r_d/r_d^fid, each built on a different subset of assumptions (distance duality, flatness, standard ruler), all agree on a single redshift-independent value with current DESI DR2 + Pantheon+ + CC data.
Bayesian photometric cosmic chronometer analysis on VIPERS PDR2 data yields H(z=0.65)=93.68±28.27(stat)±10.67(syst) km/s/Mpc, consistent with spectroscopic CC results and Planck ΛCDM, as a proof of concept for photometric surveys.
Model-independent Gaussian Process reconstruction from CC+DESI+supernova data shows positive entropy production and approach to thermodynamic equilibrium, with dark energy equation of state consistent with a cosmological constant.
The authors introduce analog matching to generate Roman Space Telescope mock catalogs that reproduce emission-line galaxy statistics and highlight the need to match void properties separately from two-point clustering for CMB cross-correlation studies.
A bias-controlled quasar sample of ~2000 objects demonstrates that the X-ray-to-UV luminosity relation remains constant from redshift 0.7 to 5.
New measurement of the Hubble parameter H(z=0.12) = 71.33 ± 4.20 km s^{-1} Mpc^{-1} obtained from cosmology-independent stellar ages of passive galaxies in DESI Data Release 1.
citing papers explorer
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Secondary-Mass Features improve Spectral-Siren $H_0$ Constraints
A new model emphasizing secondary mass features and pairing transitions improves spectral siren H0 constraints by ~30% using 142 GW events from GWTC-4.0.
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Baryons in the Darkest Sites of the Universe
Stacking 3455 CHIME/FRB sightlines on 1288 SDSS voids shows a 3.2 sigma DM deficit toward centers, implying 60 percent baryon underdensity consistent with galaxy underdensity and hydrodynamical simulations.
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Systematic Light Propagation Bias from the Heliosphere and Its Impact on the Hubble Tension
Heliospheric plasma lensing and ENA contamination bias local distance-ladder photometry, accounting for a realistic 3–8 % of the Hubble tension after anisotropy and calibration effects.
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The cosmic tetrarchy: four estimators breaking the assumption degeneracy in cosmological distance tensions
Four BAO-based estimators of the sound-horizon ratio r_d/r_d^fid, each built on a different subset of assumptions (distance duality, flatness, standard ruler), all agree on a single redshift-independent value with current DESI DR2 + Pantheon+ + CC data.
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Towards Bayesian Photometric Cosmic Chronometers: Application to VIPERS
Bayesian photometric cosmic chronometer analysis on VIPERS PDR2 data yields H(z=0.65)=93.68±28.27(stat)±10.67(syst) km/s/Mpc, consistent with spectroscopic CC results and Planck ΛCDM, as a proof of concept for photometric surveys.
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Model-independent reconstruction of cosmic thermodynamics and dark energy dynamics
Model-independent Gaussian Process reconstruction from CC+DESI+supernova data shows positive entropy production and approach to thermodynamic equilibrium, with dark energy equation of state consistent with a cosmological constant.
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Towards precision cosmology with Voids x CMB correlations (I): Roman-Agora mock catalogs and pipeline validation
The authors introduce analog matching to generate Roman Space Telescope mock catalogs that reproduce emission-line galaxy statistics and highlight the need to match void properties separately from two-point clustering for CMB cross-correlation studies.
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The X-ray-to-UV relation does not evolve in homogeneous quasar samples
A bias-controlled quasar sample of ~2000 objects demonstrates that the X-ray-to-UV luminosity relation remains constant from redshift 0.7 to 5.
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New $H(z)$ measurement at Redshift = 0.12 with DESI Data Release 1
New measurement of the Hubble parameter H(z=0.12) = 71.33 ± 4.20 km s^{-1} Mpc^{-1} obtained from cosmology-independent stellar ages of passive galaxies in DESI Data Release 1.