Cosmological constraints from the BOSS DR12 void size function

S Contarini, A Pisani, N Hamaus, F Marulli… - The Astrophysical …, 2023 - iopscience.iop.org
We present the first cosmological constraints derived from the analysis of the void size
function. This work relies on the final Baryon Oscillation Spectroscopic Survey (BOSS) Data …

Constraining νΛCDM with density-split clustering

E Paillas, C Cuesta-Lazaro, P Zarrouk… - Monthly Notices of …, 2023 - academic.oup.com
The dependence of galaxy clustering on local density provides an effective method for
extracting non-Gaussian information from galaxy surveys. The two-point correlation function …

Cosmological information in the marked power spectrum of the galaxy field

E Massara, F Villaescusa-Navarro… - The Astrophysical …, 2023 - iopscience.iop.org
Marked power spectra are two-point statistics of a marked field obtained by weighting each
location with a function that depends on the local density around that point. We consider …

DEMNUni: disentangling dark energy from massive neutrinos with the void size function

G Verza, C Carbone, A Pisani… - Journal of Cosmology and …, 2023 - iopscience.iop.org
Cosmic voids, the underdense regions in the Universe, are impacted by dark energy and
massive neutrinos. In this work, relying on the DEMNUni suite of cosmological simulations …

SUNBIRD: a simulation-based model for full-shape density-split clustering

C Cuesta-Lazaro, E Paillas, S Yuan… - Monthly Notices of …, 2024 - academic.oup.com
Combining galaxy clustering information from regions of different environmental densities
can help break cosmological parameter degeneracies and access non-Gaussian …

Euclid: Cosmology forecasts from the void-galaxy cross-correlation function with reconstruction

S Radinović, S Nadathur, HA Winther… - Astronomy & …, 2023 - aanda.org
We have investigated the cosmological constraints that can be expected from measurement
of the cross-correlation of galaxies with cosmic voids identified in the Euclid spectroscopic …

The halo bias inside cosmic voids

G Verza, C Carbone, A Renzi - The Astrophysical Journal Letters, 2022 - iopscience.iop.org
The bias of dark matter halos and galaxies is a crucial quantity in many cosmological
analyses. In this work, using large cosmological simulations, we explore the halo mass …

The perspective of voids on rising cosmology tensions

S Contarini, A Pisani, N Hamaus, F Marulli… - Astronomy & …, 2024 - aanda.org
We investigate the main tensions within the current standard model of cosmology from the
perspective of the main statistics of cosmic voids, using the final BOSS DR12 data set. For …

Streamlined lensed quasar identification in multiband images via ensemble networks

IT Andika, SH Suyu, R Cañameras, A Melo… - Astronomy & …, 2023 - aanda.org
Quasars experiencing strong lensing offer unique viewpoints on subjects related to the
cosmic expansion rate, the dark matter profile within the foreground deflectors, and the …

ZTF SN Ia DR2: Exploring SN Ia properties in the vicinity of under-dense environments

M Aubert, P Rosnet, B Popovic, F Ruppin… - Astronomy & …, 2025 - aanda.org
Context. The unprecedented statistics of detected Type Ia supernovae (SNe Ia) brought by
the Zwicky Transient Facility (ZTF) enable us to probe the impact of the large-scale structure …