B-mode polarization forecasts for GreenPol
arXiv:2306.13043 · doi:10.1051/0004-6361/202347393
Abstract
We present tensor-to-scalar ratio forecasts for GreenPol, a hypothetical ground-based B-mode experiment aiming to survey the cleanest regions of the Northern Galactic Hemisphere at five frequencies between 10 and 44 GHz. Its primary science goal would be to measure large-scale CMB polarization fluctuations at multipoles , and thereby constrain the primordial tensor-to-scalar ratio. The observations for the suggested experiment would take place at the Summit Station (72deg N, 38deg W) on Greenland, at an altitude of 3216 m above sea level. In this paper we simulate various experimental setups, and derive limits on the tensor-to-scalar ratio after CMB component separation using a Bayesian component separation implementation called Commander. When combining the proposed experiment with Planck HFI observations for constraining polarized thermal dust emission, we find a projected limit of r<0.02 at 95 % confidence for the baseline configuration. This limit is very robust with respect to a range of important experimental parameters, including sky coverage, detector weighting, foreground priors etc. Overall, GreenPol would have the possibility to provide deep CMB polarization measurements of the Northern Galactic Hemisphere at low frequencies.
10 pages, 8 figures. Published in A&A
References in corpus (39)
- Planck 2015 results. XIII. Cosmological parameters
- HEALPix -- a Framework for High Resolution Discretization, and Fast Analysis of Data Distributed on the Sphere
- Efficient Computation of CMB anisotropies in closed FRW models
- Nine-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Final Maps and Results
- Particle Physics Models of Inflation and the Cosmological Density Perturbation
- A Joint Analysis of BICEP2/Keck Array and Planck Data
- BICEP / Keck XIII: Improved Constraints on Primordial Gravitational Waves using Planck, WMAP, and BICEP/Keck Observations through the 2018 Observing Season
- Joint Bayesian component separation and CMB power spectrum estimation
- Improved limits on the tensor-to-scalar ratio using BICEP and Planck
- The Atacama Cosmology Telescope: The polarization-sensitive ACTPol instrument
- BICEP2 II: Experiment and Three-Year Data Set
- Planck intermediate results. XXX. The angular power spectrum of polarized dust emission at intermediate and high Galactic latitudes
- Power spectrum estimation from high-resolution maps by Gibbs sampling
- SPTpol: an instrument for CMB polarization measurements with the South Pole Telescope
- Rethinking CMB foregrounds: systematic extension of foreground parameterizations
- The POLARBEAR Experiment
- Antenna-coupled TES bolometers used in BICEP2, Keck array, and SPIDER
- Sensitivity and foreground modelling for large-scale CMB B-mode polarization satellite missions
- S-band Polarization All Sky Survey (S-PASS): survey description and maps
- Measurements of the Intensity and Polarization of the Anomalous Microwave Emission in the Perseus molecular complex with QUIJOTE
- Synchrotron Spectral Curvature from 22 MHz to 23 GHz
- The C-Band All-Sky Survey (C-BASS): Design and capabilities
- QUIJOTE scientific results -- IV. A northern sky survey in intensity and polarization at 10-20GHz with the Multi-Frequency Instrument
- MHD Turbulence as a Foreground for CMB Studies
- Dust Polarization Maps from TIGRESS: E/B power asymmetry and TE correlation
- Global Distribution of Water Vapor and Cloud Cover--Sites for High Performance THz Applications
- POLARBEAR-2: an instrument for CMB polarization measurements
- BeyondPlanck III. Commander3
- Dust moments: towards a new modelling of the galactic dust emission for CMB B-modes analysis
- BeyondPlanck XIII. Intensity foreground sampling, degeneracies, and priors
- Impact on the tensor-to-scalar ratio of incorrect Galactic foreground modelling
- Tensor-to-scalar ratio forecasts for extended LiteBIRD frequency configurations
- Performance and on-sky optical characterization of the SPTpol instrument
- QUIJOTE scientific results -- VIII. Diffuse polarized foregrounds from component separation with QUIJOTE-MFI
- Cosmoglobe DR1 results. I. Improved Wilkinson Microwave Anisotropy Probe maps through Bayesian end-to-end analysis
- A hybrid map- component separation method for primordial CMB -mode searches
- A LEKID-based CMB instrument design for large-scale observations in Greenland
- CMB foreground measurements through broad-band radio spectro-polarimetry: prospects of the SKA-MPG telescope
- Statistical properties of polarized CMB foreground maps