BOSS DR12 full-shape cosmology: constraints from the large-scale galaxy power spectrum and bispectrum monopole

OHE Philcox, MM Ivanov - Physical Review D, 2022 - APS
We present a full Λ CDM analysis of the BOSS DR12 dataset, including information from the
power spectrum multipoles, the real-space power spectrum, the reconstructed power …

Constraints on multifield inflation from the BOSS galaxy survey

G Cabass, MM Ivanov, OHE Philcox, M Simonović… - Physical Review D, 2022 - APS
We use redshift-space galaxy clustering data from the BOSS survey to constrain local
primordial non-Gaussianity (LPNG). This is of particular importance due to the consistency …

Constraints on single-field inflation from the BOSS galaxy survey

G Cabass, MM Ivanov, OHE Philcox, M Simonović… - Physical Review Letters, 2022 - APS
Nonlocal primordial non-Gaussianity (NLPNG) is a smoking gun of interactions in single-
field inflationary models and can be written as a combination of the equilateral and …

Cosmology with the galaxy bispectrum multipoles: Optimal estimation and application to BOSS data

MM Ivanov, OHE Philcox, G Cabass, T Nishimichi… - Physical Review D, 2023 - APS
We present a framework for self-consistent cosmological analyses of the full-shape
anisotropic bispectrum, including the quadrupole (ℓ= 2) and hexadecapole (ℓ= 4) moments …

Ultra-light axions and the S 8 tension: joint constraints from the cosmic microwave background and galaxy clustering

KK Rogers, R Hložek, A Laguë… - … of Cosmology and …, 2023 - iopscience.iop.org
We search for ultra-light axions as dark matter (DM) and dark energy particle candidates, for
axion masses 10-32 eV≤ ma≤ 10-24 eV, by a joint analysis of cosmic microwave …

Cosmology with the redshift-space galaxy bispectrum monopole at one-loop order

OHE Philcox, MM Ivanov, G Cabass, M Simonović… - Physical Review D, 2022 - APS
We study the cosmological information content of the redshift-space galaxy bispectrum
monopole at one-loop order in perturbation theory. We incorporate all effects necessary for …

Precision analysis of the redshift-space galaxy bispectrum

MM Ivanov, OHE Philcox, T Nishimichi, M Simonović… - Physical Review D, 2022 - APS
We study the information content of the angle-averaged redshift space galaxy bispectrum.
The main novelty of our approach is the use of a systematic tree-level perturbation theory …

Full-shape analysis with simulation-based priors: Constraints on single field inflation from BOSS

MM Ivanov, C Cuesta-Lazaro, S Mishra-Sharma… - Physical Review D, 2024 - APS
Perturbative, or effective field theory (EFT)-based, full-shape analyses of galaxy clustering
data involve “nuisance parameters” to capture various observational effects such as the …

Cosmology with the EFTofLSS and BOSS: dark energy constraints and a note on priors

P Carrilho, C Moretti, A Pourtsidou - Journal of Cosmology and …, 2023 - iopscience.iop.org
We analyse the BOSS DR12 multipoles of the galaxy power spectrum jointly with
measurements of the BAO scale for three different models of dark energy. We use recent …

Suppression without thawing: Constraining structure formation and dark energy with galaxy clustering

SF Chen, MM Ivanov, OHE Philcox, L Wenzl - Physical Review Letters, 2024 - APS
We present a new perturbative full-shape analysis of BOSS galaxy clustering data, including
the full combination of the galaxy power spectrum and bispectrum multipoles, baryon …