COMAP Early Science: I. Overview
Kieran A. Cleary, Jowita Borowska, Patrick C. Breysse, Morgan Catha,, Dongwoo T. Chung, Sarah E. Church, Clive Dickinson, Hans Kristian Eriksen,, Marie Kristine Foss, Joshua Ott Gundersen, Stuart E. Harper, Andrew I., Harris, Richard Hobbs, H{\aa}vard, T. Ihle, Junhan Kim

TL;DR
COMAP's early science results provide the first direct 3D measurement of CO(1-0) clustering at high redshift, improving constraints on galaxy distribution and informing future intensity mapping efforts to probe the Epoch of Reionization.
Contribution
This paper presents the first direct measurement of the CO(1-0) power spectrum at high redshift using COMAP Pathfinder data, and demonstrates significant improvements in constraining models of galaxy evolution.
Findings
First direct 3D constraint on CO(1-0) power spectrum.
Nearly an order-of-magnitude improvement in clustering amplitude constraints.
Forecasted detection of the CO power spectrum with high signal-to-noise after 5 years.
Abstract
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 to the Epoch of Reionization (EoR). To validate the technologies and techniques needed for this goal, a Pathfinder instrument has been constructed and fielded. Sensitive to CO(1-0) emission from - and a fainter contribution from CO(2-1) at -8, the Pathfinder is surveying deg in a 5-year observing campaign to detect the CO signal from . Using data from the first 13 months of observing, we estimate on scales - the first direct 3D constraint on the clustering component of the CO(1-0) power spectrum. Based on these observations alone, we obtain a constraint on the amplitude…
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Taxonomy
TopicsGalaxies: Formation, Evolution, Phenomena · Astrophysics and Star Formation Studies · Astronomy and Astrophysical Research
