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COMAP Pathfinder -- Season 2 results III. Implications for cosmic molecular gas content at "Cosmic Half-past Eleven"
D. T. Chung, P. C. Breysse, K. A. Cleary +24
The Carbon monOxide Mapping Array Project (COMAP) Pathfinder survey continues to demonstrate the feasibility of line-intensity mapping using high-redshift carbon monoxide (CO) line…
COMAP Pathfinder -- Season 2 results II. Updated constraints on the CO(1-0) power spectrum
N. -O. Stutzer, J. G. S. Lunde, P. C. Breysse +24
We present updated constraints on the cosmological 3D power spectrum of carbon monoxide CO(1-0) emission in the redshift range -. The constraints are derived from the two…
COMAP Pathfinder -- Season 2 results I. Improved data selection and processing
J. G. S. Lunde, N. -O. Stutzer, P. C. Breysse +24
The CO Mapping Array Project (COMAP) Pathfinder is performing line intensity mapping of CO emission to trace the distribution of unresolved galaxies at redshift . We pres…
Cosmological parameters derived from the final (PR4) Planck data release
M. Tristram, A. J. Banday, M. Douspis +10
We present constraints on cosmological parameters using maps from the last Planck data release (PR4). In particular, we detail an upgraded version of the cosmic microwave backgroun…
Foreground Separation and Constraints on Primordial Gravitational Waves with the PICO Space Mission
Ragnhild Aurlien, Mathieu Remazeilles, Sebastian Belkner +13
PICO is a concept for a NASA probe-scale mission aiming to detect or constrain the tensor to scalar ratio , a parameter that quantifies the amplitude of inflationary gravity wav…
Snowmass 2021 CMB-S4 White Paper
Kevork Abazajian, Arwa Abdulghafour, Graeme E. Addison +353
This Snowmass 2021 White Paper describes the Cosmic Microwave Background Stage 4 project CMB-S4, which is designed to cross critical thresholds in our understanding of the origin a…
Improved limits on the tensor-to-scalar ratio using BICEP and Planck
M. Tristram, A. J. Banday, K. M. Górski +14
We present constraints on the tensor-to-scalar ratio r using a combination of BICEP/Keck 2018 and Planck PR4 data allowing us to fit for r consistently with the six parameters of t…
COMAP Early Science: I. Overview
Kieran A. Cleary, Jowita Borowska, Patrick C. Breysse +40
The CO Mapping Array Project (COMAP) aims to use line intensity mapping of carbon monoxide (CO) to trace the distribution and global properties of galaxies over cosmic time, back t…
COMAP Early Science: VII. Prospects for CO Intensity Mapping at Reionization
Patrick C. Breysse, Dongwoo T. Chung, Kieran A. Cleary +29
We introduce COMAP-EoR, the next generation of the Carbon Monoxide Mapping Array Project aimed at extending CO intensity mapping to the Epoch of Reionization. COMAP-EoR supplements…
COMAP Early Science: V. Constraints and Forecasts at
Dongwoo T. Chung, Patrick C. Breysse, Kieran A. Cleary +34
We present the current state of models for the carbon monoxide (CO) line-intensity signal targeted by the CO Mapping Array Project (COMAP) Pathfinder in the context of its…
COMAP Early Science: IV. Power Spectrum Methodology and Results
Håvard T. Ihle, Jowita Borowska, Kieran A. Cleary +30
We present the power spectrum methodology used for the first-season COMAP analysis, and assess the quality of the current data set. The main results are derived through the Feed-fe…
Planck constraints on the tensor-to-scalar ratio
M. Tristram, A. J. Banday, K. M. Górski +14
We present constraints on the tensor-to-scalar ratio r using Planck data. We use the latest release of Planck maps (PR4), processed with the NPIPE code, which produces calibrated f…
CMB-S4: Forecasting Constraints on Primordial Gravitational Waves
S4 Collaboration, Kevork Abazajian, Graeme E. Addison +233
CMB-S4---the next-generation ground-based cosmic microwave background (CMB) experiment---is set to significantly advance the sensitivity of CMB measurements and enhance our underst…
Planck intermediate results. LVII. Joint Planck LFI and HFI data processing
Planck Collaboration, Y. Akrami, K. J. Andersen +136
We present the NPIPE processing pipeline, which produces calibrated frequency maps in temperature and polarization from data from the Planck Low Frequency Instrument (LFI) and High…
Planck intermediate results. LVI. Detection of the CMB dipole through modulation of the thermal Sunyaev-Zeldovich effect: Eppur si muove II
Planck Collaboration, Y. Akrami, M. Ashdown +126
The largest temperature anisotropy in the cosmic microwave background (CMB) is the dipole, which has been measured with increasing accuracy for more than three decades, particularl…
Planck 2018 results. V. CMB power spectra and likelihoods
Planck Collaboration, N. Aghanim, Y. Akrami +165
This paper describes the 2018 Planck CMB likelihoods, following a hybrid approach similar to the 2015 one, with different approximations at low and high multipoles, and implementin…
Planck 2018 results. VII. Isotropy and Statistics of the CMB
Planck Collaboration, Y. Akrami, M. Ashdown +147
Analysis of the Planck 2018 data set indicates that the statistical properties of the cosmic microwave background (CMB) temperature anisotropies are in excellent agreement with pre…
Planck 2018 results. IX. Constraints on primordial non-Gaussianity
Planck Collaboration, Y. Akrami, F. Arroja +157
We analyse the Planck full-mission cosmic microwave background (CMB) temperature and E-mode polarization maps to obtain constraints on primordial non-Gaussianity (NG). We compare e…
Tomography of the Cosmic Dawn and Reionization Eras with Multiple Tracers
Tzu-Ching Chang, Angus Beane, Olivier Dore +41
The Cosmic Dawn and Reionization epochs remain a fundamental but challenging frontier of astrophysics and cosmology. We advocate a large-scale, multi-tracer approach to develop a c…
Planck 2018 results. III. High Frequency Instrument data processing and frequency maps
Planck Collaboration, N. Aghanim, Y. Akrami +152
This paper presents the High Frequency Instrument (HFI) data processing procedures for the Planck 2018 release. Major improvements in mapmaking have been achieved since the previou…
Planck 2018 results. X. Constraints on inflation
Planck Collaboration, Y. Akrami, F. Arroja +173
We report on the implications for cosmic inflation of the 2018 Release of the Planck CMB anisotropy measurements. The results are fully consistent with the two previous Planck cosm…
Planck 2018 results. VIII. Gravitational lensing
Planck Collaboration, N. Aghanim, Y. Akrami +155
We present measurements of the cosmic microwave background (CMB) lensing potential using the final 2018 temperature and polarization data. We increase the signifi…
Planck 2018 results. VI. Cosmological parameters
Planck Collaboration, N. Aghanim, Y. Akrami +179
We present cosmological parameter results from the final full-mission Planck measurements of the CMB anisotropies. We find good consistency with the standard spatially-flat 6-param…
Planck 2018 results. IV. Diffuse component separation
Planck Collaboration, Y. Akrami, M. Ashdown +150
We present full-sky maps of the cosmic microwave background (CMB) and polarized synchrotron and thermal dust emission, derived from the third set of Planck frequency maps. These pr…