Kinetic Sunyaev-Zel'dovich reconstruction from WISExSuperCOSMOS and unWISE galaxies with Planck data yields tight upper limits on bulk velocities consistent with LambdaCDM out to 2000 h^{-1} Mpc while showing tension with a quasar dipole interpretation.
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Directional tests for H0 anisotropy on Pantheon+ and CSP samples cannot robustly determine anisotropy directions because of intrinsic limits in the SN Ia lightcurve method.
For an observer with peculiar motion, the cosmic redshift-drift signal gains a dipolar correction proportional to the flow's projected expansion, shear, and acceleration; calibrated to CF4, it is subdominant and cannot mimic an accelerating EdS universe.
Derives a unified partial differential equation for perturbations in Bianchi cosmologies and computes the CMB power spectrum for a toy Bianchi V model.
Stellar age analysis of a large Galactic sample gives a cosmic age of 13.73 Gyr, consistent with LambdaCDM but inconsistent with some Hubble tension resolutions implying 12.9 Gyr.
Local structure modeled via Λ-Szekeres patches fitted to Cosmicflows-4 data produces a ~0.5 km/s/Mpc upward shift in H0 from Pantheon+ supernovae, increasing the Hubble tension.
citing papers explorer
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Measuring cosmic bulk flow with kinetic Sunyaev-Zel'dovich velocity reconstruction
Kinetic Sunyaev-Zel'dovich reconstruction from WISExSuperCOSMOS and unWISE galaxies with Planck data yields tight upper limits on bulk velocities consistent with LambdaCDM out to 2000 h^{-1} Mpc while showing tension with a quasar dipole interpretation.
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(An)Isotropy in Pantheon+ and Type Ia supernova samples: intrinsic limits of directional tests
Directional tests for H0 anisotropy on Pantheon+ and CSP samples cannot robustly determine anisotropy directions because of intrinsic limits in the SN Ia lightcurve method.
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Expected redshift drift for tilted observers
For an observer with peculiar motion, the cosmic redshift-drift signal gains a dipolar correction proportional to the flow's projected expansion, shear, and acceleration; calibrated to CF4, it is subdominant and cannot mimic an accelerating EdS universe.
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Exploring the CMB in Anisotropic Universes
Derives a unified partial differential equation for perturbations in Bianchi cosmologies and computes the CMB power spectrum for a toy Bianchi V model.
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The age of the Universe from a large sample of the oldest Galactic stars
Stellar age analysis of a large Galactic sample gives a cosmic age of 13.73 Gyr, consistent with LambdaCDM but inconsistent with some Hubble tension resolutions implying 12.9 Gyr.
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An effective $\boldsymbol{\Lambda}$-Szekeres modelling of the local Universe with Cosmicflows-4
Local structure modeled via Λ-Szekeres patches fitted to Cosmicflows-4 data produces a ~0.5 km/s/Mpc upward shift in H0 from Pantheon+ supernovae, increasing the Hubble tension.
- Constraints on the gravitational potential from DESI DR2 BAO and its implications for the local void scenario
- The velocity coherence scale: a novel probe of cosmic homogeneity and a potential standard ruler