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The Atacama Cosmology Telescope: Measurement and Analysis of 1D Beams for DR4
Marius Lungu, Emilie R. Storer, Matthew Hasselfield +28
We describe the measurement and treatment of the telescope beams for the Atacama Cosmology Telescope's fourth data release, DR4. Observations of Uranus are used to measure the cent…
The Atacama Cosmology Telescope: Modeling Bulk Atmospheric Motion
Thomas W. Morris, Ricardo Bustos, Erminia Calabrese +17
Fluctuating atmospheric emission is a dominant source of noise for ground-based millimeter-wave observations of the CMB temperature anisotropy at angular scales $\gtrsim 0.5^{\circ…
The Atacama Cosmology Telescope: Constraints on Pre-Recombination Early Dark Energy
J. Colin Hill, Erminia Calabrese, Simone Aiola +40
The early dark energy (EDE) scenario aims to increase the value of the Hubble constant () inferred from cosmic microwave background (CMB) data over that found in CDM, via t…
The Atacama Cosmology Telescope: A search for Planet 9
Sigurd Naess, Simone Aiola, Nick Battaglia +37
We use Atacama Cosmology Telescope (ACT) observations at 98 GHz (2015--2019), 150 GHz (2013--2019) and 229 GHz (2017--2019) to perform a blind shift-and-stack search for Planet 9.…
The Atacama Cosmology Telescope: Microwave Intensity and Polarization Maps of the Galactic Center
Yilun Guan, Susan E. Clark, Brandon S. Hensley +30
We present arcminute-resolution intensity and polarization maps of the Galactic center made with the Atacama Cosmology Telescope (ACT). The maps cover a 32 deg field at 98, 150…
The Atacama Cosmology Telescope: Summary of DR4 and DR5 Data Products and Data Access
Maya Mallaby-Kay, Zachary Atkins, Simone Aiola +57
Two recent large data releases for the Atacama Cosmology Telescope (ACT), called DR4 and DR5, are available for public access. These data include temperature and polarization maps…