Exploring modified gravity: constraints on the μ and Σ parametrization with WMAP, ACT, and SPT

U Andrade, AJS Capistrano… - Monthly Notices of …, 2024 - academic.oup.com
… viability of modified gravity theories. Our analysis reveals the strengths and limitations of the
… valuable insights into the nature of gravity on cosmological scales. From the joint analysis of …

Atacama Cosmology Telescope: Constraints on prerecombination early dark energy

JC Hill, E Calabrese, S Aiola, N Battaglia, B Bolliet… - Physical Review D, 2022 - APS
cosmic energy budget. In this paper, we fit the EDE model to CMB data from the Atacama
Cosmology Telescope … The tight constraint on EDE from Planck alone is driven by its high- ℓ TT …

The Atacama Cosmology Telescope: DR6 gravitational lensing map and cosmological parameters

MS Madhavacheril, FJ Qu, BD Sherwin… - The Astrophysical …, 2024 - iopscience.iop.org
… We present cosmological constraints from a gravitational lensing mass map covering 9400
… of the cosmic microwave background (CMB) made by the Atacama Cosmology Telescope (…

Atacama Cosmology Telescope: constraints on cosmic birefringence

T Namikawa, Y Guan, O Darwish, BD Sherwin, S Aiola… - Physical Review D, 2020 - APS
… Compared to other experiments, ACTPol provides the tightest constraint on the cosmic
from the baseline value, since we only modify the analyzed data by a small amount by changing …

The Atacama Cosmology Telescope: delensed power spectra and parameters

D Han, N Sehgal, A MacInnis… - … of Cosmology and …, 2021 - iopscience.iop.org
cosmological parameter constraints obtained from delensed microwave background power
spectra. Lensing maps from a subset of DR4 data from the Atacama Cosmology Telescope (…

The Atacama Cosmology Telescope: limits on dark matter-baryon interactions from DR4 power spectra

Z Li, R An, V Gluscevic, KK Boddy… - … of Cosmology and …, 2023 - iopscience.iop.org
cosmic microwave background (CMB) provide constraints on such a coupling that complement
laboratory searches. In this work we place upper limitsAtacama Cosmology Telescope (…

Atacama Cosmology Telescope: The persistence of neutrino self-interaction in cosmological measurements

CD Kreisch, M Park, E Calabrese, FY Cyr-Racine, R An… - Physical Review D, 2024 - APS
… below, plays a significant role in these constraints. Given that WMAP does not include EE …
to be significantly influenced by the modified evolution of the gravitational potentials. The figure …

The Atacama Cosmology Telescope: a measurement of the DR6 CMB lensing power spectrum and its implications for structure growth

FJ Qu, BD Sherwin, MS Madhavacheril… - The Astrophysical …, 2024 - iopscience.iop.org
… power spectrum measurement provides constraints on the amplitude of cosmic structure that
do … From our lensing power spectrum measurement, we derive constraints on the parameter …

The Atacama cosmology telescope: A search for Planet 9

S Naess, S Aiola, N Battaglia, RJ Bond… - The Astrophysical …, 2021 - iopscience.iop.org
… The distance to and velocity of Planet 9 are relatively poorly determined, but we can infer
rough limits on the acceptable fit from Figure 15 of B19, as shown in Table 2. We see that …

Cosmological tests of gravity

PG Ferreira - Annual Review of Astronomy and Astrophysics, 2019 - annualreviews.org
… of telescopes that make the Event Horizon Telescope, to … I examine the various existing
constraints on gravity with large-… Before we delve into what it means to modify gravity, let us …