Publications (5)
A GPU-based Correlator X-engine Implemented on the CHIME Pathfinder
Nolan Denman, Mandana Amiri, Kevin Bandura +17
We present the design and implementation of a custom GPU-based compute cluster that provides the correlation X-engine of the CHIME Pathfinder radio telescope. It is among the large…
The Atacama Cosmology Telescope: limits on dark matter-baryon interactions from DR4 power spectra
Zack Li, Rui An, Vera Gluscevic +20
Diverse astrophysical observations suggest the existence of cold dark matter that interacts only gravitationally with radiation and ordinary baryonic matter. Any nonzero coupling b…
The Atacama Cosmology Telescope: Dusty Star-Forming Galaxies and Active Galactic Nuclei in the Southern Survey
Danica Marsden, Megan Gralla, Tobias A. Marriage +28
We present a catalog of 191 extragalactic sources detected by the Atacama Cosmology Telescope (ACT) at 148 GHz and/or 218 GHz in the 2008 Southern survey. Flux densities span 14-17…
Power-Law Template for IR Point Source Clustering
Graeme E. Addison, Joanna Dunkley, Amir Hajian +15
We perform a combined fit to angular power spectra of unresolved infrared (IR) point sources from the Planck satellite (at 217, 353, 545 and 857 GHz, over angular scales 100 < l <…
The Atacama Cosmology Telescope: Machine Learning Driven Tools for Detecting Millimeter Sources in Timestream Pre-processing
Simran K. Nerval, Erika Hornecker, Yilun Guan +14
We present a new pipeline utilizing machine learning for classifying short-duration features in raw time-ordered data (TOD) of cosmic microwave background survey observations. The…