papers

Publications (13)

astro-ph.IM2025

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…

astro-ph.HE2023

New Identifications and Multi-wavelength Properties of Extragalactic Fermi Gamma-Ray Sources in the SPT-SZ Survey Field

Lizhong Zhang, Joaquin D. Vieira, Marco Ajello +5

The fourth Fermi Large Area Telescope (LAT) catalog (4FGL) contains 5064 -ray sources detected at high significance, but 26% of them still lack associations at other wavelength…

astro-ph.IM2025

Detection and characterisation of submm transient sources with a large single-dish telescope

Mike Peel, Dave Clements, Tony Mroczkowski +1

The exploration of the time-variable astronomical sky at submm wavelengths is rapidly becoming more feasible with large sky surveys by Cosmic Microwave Background telescopes with t…

astro-ph.HE2025

Atacama Cosmology Telescope: Constraints on the Millimetre Flux of the Crab Pulsar

Yilun Guan, Sigurd Naess, Ian Niebres +8

Millimeter-wave observations of pulsars, while crucial for understanding their emission mechanisms, remain scarce. We demonstrate that high-precision cosmic microwave background (C…

astro-ph.CO2025

The Atacama Cosmology Telescope: DR6 Power Spectra, Likelihoods and CDM Parameters

Thibaut Louis, Adrien La Posta, Zachary Atkins +165

We present power spectra of the cosmic microwave background (CMB) anisotropy in temperature and polarization, measured from the Data Release 6 maps made from Atacama Cosmology Tele…

astro-ph.CO2026

Unified and consistent structure growth measurements from joint ACT, SPT and \textit{Planck} CMB lensing

Frank J. Qu, Fei Ge, W. L. Kimmy Wu +143

We present the tightest cosmic microwave background (CMB) lensing constraints to date on the growth of structure by combining CMB lensing measurements from the Atacama Cosmology Te…

astro-ph.HE2025

The Atacama Cosmology Telescope: Systematic Transient Search of Single Observation Maps

Emily K. Biermann, Yaqiong Li, Sigurd Naess +24

We conduct a systematic search for astrophysical transients using data from the Atacama Cosmology Telescope (ACT). The data were taken from 2017 to 2022 in three frequency bands sp…

astro-ph.HE2025

Atacama Cosmology Telescope: Observations of supermassive black hole binary candidates. Strong sinusoidal variations at 95, 147 and 225 GHz in PKS 2131021 and PKS J08050111

Adam D. Hincks, Xiaoyi Ma, Przemek Mróz +23

Large sinusoidal variations in the radio light curves of the blazars PKS J08050111 and PKS 2131021 have recently been discovered with an 18-year monitoring programme at the O…

astro-ph.CO2025

The Atacama Cosmology Telescope: DR6 Constraints on Extended Cosmological Models

Erminia Calabrese, J. Colin Hill, Hidde T. Jense +169

We use new cosmic microwave background (CMB) primary temperature and polarization anisotropy measurements from the Atacama Cosmology Telescope (ACT) Data Release 6 (DR6) to test fo…

astro-ph.EP2026

The Atacama Cosmology Telescope: Release of A databaSe of millimeTeR ObservatioNs of Asteroids Using acT (ASTRONAUT)

Ricco C. Venterea, John Orlowski-Scherer, Nicholas Battaglia +7

We present A databaSe of millimeTeR ObservatioNs of Asteroids Using acT (ASTRONAUT) hosted on Amazon Web Services, Inc. (AWS) in the form of a public Amazon Simple Storage Service…

astro-ph.IM2018

Optical Characterization of the SPT-3G Focal Plane

Zhaodi Pan, Peter Ade, Zeeshan Ahmed +73

The third-generation South Pole Telescope camera is designed to measure the cosmic microwave background across three frequency bands (95, 150 and 220 GHz) with ~16,000 transition-e…

astro-ph.IM2013

The Optical Design of CHARIS: An Exoplanet IFS for the Subaru Telescope

Mary Anne Peters-Limbach, Tyler D. Groff, N. Jeremy Kasdin +15

High-contrast imaging techniques now make possible both imaging and spectroscopy of planets around nearby stars. We present the optical design for the Coronagraphic High Angular Re…

astro-ph.CO2025

The Atacama Cosmology Telescope: DR6 Maps

Sigurd Naess, Yilun Guan, Adriaan J. Duivenvoorden +163

We present Atacama Cosmology Telescope (ACT) Data Release 6 (DR6) maps of the Cosmic Microwave Background temperature and polarization anisotropy at arcminute resolution over three…