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IR STIG Webinar

Infrared Science and Technology Integration Group

DATE

Apr 05, 2022

TIME

3:00 pm EST

COMMUNITY

IR STIG

TYPE

Webinar

Early science from the CO Mapping Array Project

Patrick Breysse, NYU

  I will report on early science results from the Carbon Monoxide Mapping Array Project (COMAP), which is using line intensity mapping (LIM) of CO to trace the distribution and evolution of galaxies over cosmic time. The LIM technique is sensitive to both faint and bright galaxies and allows their global properties to be efficiently measured over very large volumes. I will describe the Pathfinder instrument which is currently conducting a 5-year observing campaign to detect the CO signal from z ~3. This is a 19-feed focal plane array (FPA) spectrometer operating over 26 – 34 GHz, with the largest processed bandwidth of any other FPA spectrometer. I will briefly describe the data analysis and power spectrum estimation techniques. Using the first 13 months of observing, we obtain the first direct 3D constraint on the clustering component of the CO(1-0) power spectrum, ruling out the brightest models from the literature. Based on a new model, informed by recent observational constraints, we forecast a detection of the power spectrum by the end of the nominal Pathfinder survey. Looking to the future, I will discuss prospects for an expansion of the experiment targeting the Epoch of Reionization.

Short Bio: Dr Patrick Breysse is currently a James Arthur Postdoctoral Fellow at the NYU Center for Cosmology and Particle Physics, where he studies cosmology and galaxy evolution. His work primarily focuses on exciting new line intensity mapping surveys, which provide a new window into subjects ranging from the large-scale structure of the universe to the interstellar media of high-redshift galaxies. He spends most of his time modeling signals for upcoming intensity mapping experiments, developing new analysis techniques to extract useful physics from them, and analyzing and interpreting their data as it becomes available. Dr. Breysse received his PhD from Johns Hopkins, followed by a postdoctoral fellowship at CITA.

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An illustration of Sun-like star HD 181327 and its surrounding debris disk. The star is at top right. It is surrounded by a far larger debris disk that forms an incomplete ellpitical path and is cut off at right. There’s a huge cavity between the star and the disk. The debris disk is shown in shades of light gray. Toward the top and left, there are finer, more discrete points in a range of sizes. The disk appears hazier and smokier at the bottom. The star is bright white at center, with a hazy blue region around it. The background of space is black. The label Artist's Concept appears at lower left.