A generalized Chaplygin-type solid unifies dark matter and dark energy via an early pressureless phase transitioning to a late solid phase that supports acceleration and produces distinct low-redshift perturbation signatures.
Blanchardet al.(Euclid),Astron
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The tree-level angular bispectrum in real and redshift space is expressed as sums of angular power spectra products, enabling an efficient and validated flat-sky approximation for unequal-time cases.
The BNT transform enables a null test for cosmological expansion history from photometric weak lensing data that is independent of the matter power spectrum.
Relativistic effects dominate large-scale galaxy power spectra and grow with redshift, but are largely insensitive to k-essence microphysics in Fourier space while the angular spectrum shows clearer model distinctions, especially for the tachyon.
The matter power spectrum at z=0 inferred from DESI DR1 full-shape data is consistent with both LambdaCDM and w0waCDM when combined with CMB observations via EFT modeling.
The paper reports on the aims, activities, and conclusions of an early-career workshop focused on scientific overviews, transferable skills, and networking in gravitational physics.
citing papers explorer
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A solid unification of the dark sector
A generalized Chaplygin-type solid unifies dark matter and dark energy via an early pressureless phase transitioning to a late solid phase that supports acceleration and produces distinct low-redshift perturbation signatures.
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Efficient computation of the galaxy angular bispectrum in redshift space
The tree-level angular bispectrum in real and redshift space is expressed as sums of angular power spectra products, enabling an efficient and validated flat-sky approximation for unequal-time cases.
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Novel geometrical test of cosmological expansion from photometric data
The BNT transform enables a null test for cosmological expansion history from photometric weak lensing data that is independent of the matter power spectrum.
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Relativistic effects in k-essence
Relativistic effects dominate large-scale galaxy power spectra and grow with redshift, but are largely insensitive to k-essence microphysics in Fourier space while the angular spectrum shows clearer model distinctions, especially for the tachyon.
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Inference of matter power spectrum at z=0 using DESI DR1 Full-Shape data
The matter power spectrum at z=0 inferred from DESI DR1 full-shape data is consistent with both LambdaCDM and w0waCDM when combined with CMB observations via EFT modeling.
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The Early Career Workshop of GR-Amaldi 2025
The paper reports on the aims, activities, and conclusions of an early-career workshop focused on scientific overviews, transferable skills, and networking in gravitational physics.
- Illuminating the Dark Sector: Understanding Modified Gravity Signatures with Cross-Correlations of Gravitational Waves and Large-Scale Structure