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The Atacama Cosmology Telescope: Semi-Analytic Covariance Matrices for the DR6 CMB Power Spectra
Zachary Atkins, Zack Li, David Alonso +18
The Atacama Cosmology Telescope Data Release 6 (ACT DR6) power spectrum is expected to provide state-of-the-art cosmological constraints, with an associated need for precise error…
CCAT: LED Mapping and Characterization of the 280 GHz TiN KID Array
Alicia Middleton, Steve K. Choi, Samantha Walker +21
Prime-Cam, one of the primary instruments for the Fred Young Submillimeter Telescope (FYST) developed by the CCAT Collaboration, will house up to seven instrument modules, with the…
The Atacama Cosmology Telescope: A measurement of galaxy cluster temperatures through relativistic corrections to the thermal Sunyaev-Zeldovich effect
William R. Coulton, Adriaan J. Duivenvoorden, Zachary Atkins +32
The high electron temperature in galaxy clusters (keV or K) leads to corrections at the level of a few percent in their thermal Sunyaev-Zeldovich effect signatures.…
Direct Imaging of Transition-Edge Sensors with Scanning SQUID Microscopy
Samantha Walker, Austin Kaczmarek, Jason Austermann +10
Significant advancements have been made in understanding the physics of transition-edge sensors (TESs) over the past decade. However, key questions remain, particularly a detailed…
The Atacama Cosmology Telescope: Quantifying Atmospheric Emission above Cerro Toco
Thomas W. Morris, Elia Battistelli, Ricardo Bustos +17
At frequencies below 1 Hz, fluctuations in atmospheric emission in the Chajnantor region in northern Chile are the primary source of interference for bolometric millimeter-wave obs…
CCAT: A status update on the EoR-Spec instrument module for Prime-Cam
Rodrigo Freundt, Yaqiong Li, Doug Henke +15
The Epoch of Reionization Spectrometer (EoR-Spec) is an upcoming Line Intensity Mapping (LIM) instrument designed to study the evolution of the early universe (z = 3.5 to 8) by pro…