activity
20192026
most citedDESI 2024 VI: Cosmological Constraints from the Measurements of Baryon Acoustic Oscillations

1.1k citations · 1.2k across the 11 of their papers we have counts for

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7 papers · 1 filter

astro-ph.CO2026

Optimization of Weak Lensing Lightcone Simulations for Higher-Order Statistics in the LSST era

J. Mena-Fernández, C. Doux, J. Harnois-Déraps +9

We present a framework for generating lightcone simulations tailored to the analysis of Stage-IV cosmic shear data using Higher-Order Statistics (HOS). We revisit key design choice…

astro-ph.CO2026

Point Correlation Functions in Galaxy Surveys: Impact of Baryonic Feedback

Avijit Bera, Joachim Harnois-Déraps, Juan Mena-Fernández +5

We investigate the impact of baryonic feedback on two-point and three-point correlation functions (2PCFs and 3PCFs hereafter, respectively) involving galaxy density fields (g) and…

astro-ph.CO2025★ 2 cited

DESI-DR1 -pt analysis: consistent cosmology across weak lensing surveys

A. Porredon, C. Blake, J. U. Lange +70

We present a joint cosmological analysis of projected galaxy clustering observations from the Dark Energy Spectroscopic Instrument Data Release 1 (DESI-DR1), and overlapping weak g…

astro-ph.CO2025★ 1 cited

A direct detection method of galaxy intrinsic ellipticity-gravitational shear correlation in non-linear regimes using self-calibration

Avijit Bera, Leonel Medina Varela, Vinu Sooriyaarachchi +3

Intrinsic alignment (IA) of galaxies is a challenging source of contamination in the Cosmic shear (GG) signals. The galaxy intrinsic ellipticity-gravitational shear (IG) correlatio…

astro-ph.CO2025★ 12 cited

OpenUniverse2024: A shared, simulated view of the sky for the next generation of cosmological surveys

OpenUniverse, The LSST Dark Energy Science Collaboration, The Roman HLIS Project Infrastructure Team +58

The OpenUniverse2024 simulation suite is a cross-collaboration effort to produce matched simulated imaging for multiple surveys as they would observe a common simulated sky. Both t…

astro-ph.CO2024★ 20 cited

HOD-Dependent Systematics in Emission Line Galaxies for the DESI 2024 BAO analysis

C. Garcia-Quintero, J. Mena-Fernández, A. Rocher +73

The Dark Energy Spectroscopic Instrument (DESI) will provide precise measurements of Baryon Acoustic Oscillations (BAO) to constrain the expansion history of the Universe and set s…