activity
20242026
most citedDynamical Dark Energy in light of the DESI DR2 Baryonic Acoustic Oscillations Measurements

62 citations · 71 across the 9 of their papers we have counts for

collaborators
Showing astro-ph.COShow all

10 papers · 1 filter

astro-ph.CO2026

Density-split analyses of the pairwise kinetic Sunyaev-Zeldovich effect

Finn A. Roper, Aritra K. Gon, Yan-Chuan Cai +1

We consider the dependence of the kinetic Sunyaev-Zeldovich (kSZ) effect on the environments of foreground cosmological structures. Standard pairwise kSZ estimators exploit the fac…

astro-ph.CO2026

CHEFT: A Hybrid Effective Field Theory halo model

Marcos Pellejero Ibáñez, David Alonso, John A. Peacock +2

We present a hybrid halo model, which improves the description of the 2-halo term by incorporating non-linear information from simulations. A linear computation of the halo-halo po…

astro-ph.CO2026

Validation of the Hybrid Bias Expansion model for the galaxy bispectrum

Marcos Pellejero Ibáñez, Raul E. Angulo, Laila Linke +8

The Hybrid Bias Expansion model (also known as Hybrid Effective Field Theory, HEFT) provides a promising way to extend the range of validity of perturbative large-scale structure m…

astro-ph.CO2025★ 1 cited

Galaxy assembly bias in cosmological hydrodynamical simulations: a comparison between SIMBA and IllustrisTNG

Hong-Gang Yang, Marcos Pellejero, John Peacock +1

Modelling of large-scale structure is increasingly concerned with galaxy assembly bias (GAB), the dependence of galaxy clustering on quantities other than halo mass. We investigate…

astro-ph.CO2025

Mass dependence of halo baryon fractions from the kinetic Sunyaev-Zeldovich effect

Finn A. Roper, Yan-Chuan Cai, John A. Peacock

We detect the kinetic Sunyaev-Zeldovich imprint of peculiar motions of galaxy groups and clusters, using the photometric DESI Legacy Survey together with cosmic microwave backgroun…

astro-ph.CO2025★ 62 cited

Dynamical Dark Energy in light of the DESI DR2 Baryonic Acoustic Oscillations Measurements

Gan Gu, Xiaoma Wang, Yuting Wang +57

Understanding whether cosmic acceleration arises from a cosmological constant or a dynamical component is a central goal of cosmology, and the Dark Energy Spectroscopic Instrument…

astro-ph.CO2025

Detection of cosmological dipoles aligned with transverse peculiar velocities

Yan-Chuan Cai, John A. Peacock, Anna de Graaff +1

Peculiar velocities encode rich cosmological information, but their transverse components are hard to measure. Here, we present the first observations of a novel effect of transver…

astro-ph.CO2024★ 7 cited

The impact of the cosmological constant on past and future star formation

Daniele Sorini, John A. Peacock, Lucas Lombriser

We present an extended analytic model for cosmic star formation, with the aim of investigating the impact of cosmological parameters on the star formation history within the CDM…

astro-ph.CO2024

The Atacama Cosmology Telescope DR6 and DESI: Structure growth measurements from the cross-correlation of DESI Legacy Imaging galaxies and CMB lensing from ACT DR6 and Planck PR4

Frank J. Qu, Qianjun Hang, Gerrit Farren +51

We measure the growth of cosmic density fluctuations on large scales and across the redshift range through the cross-correlation of the ACT DR6 CMB lensing map and gala…

astro-ph.CO2024★ 1 cited

Cosmological constraints from the full-shape galaxy power spectrum in SDSS-III BOSS using the BACCO hybrid Lagrangian bias emulator

Marcos Pellejero Ibáñez, Raul E. Angulo, John A. Peacock

We present a novel analysis of the redshift-space power spectrum of galaxies in the SDSS-III BOSS survey. Our methodology improves upon previous analyses by using a theoretical mod…