activity
20232026
most citedThe Simons Observatory: Validation of reconstructed power spectra from simulated filtered maps for the Small Aperture Telescope survey

3 citations · 4 across the 11 of their papers we have counts for

collaborators

13 papers

astro-ph.IM2026

The Simons Observatory: Frequency-resolved beam calibration for the SO SATs with POLOCALC

Nadia Dachlythra, Gabriele Coppi, Ludovico Bizzarri +30

We present a far-field beam calibration of the Simons Observatory (SO) Small Aperture Telescopes (SATs) using scanned single-frequency measurements of a drone-mounted source emitti…

astro-ph.IM2026

The Simons Observatory: Commissioning of the Mid-Frequency Small Aperture Telescopes

Kathleen Harrington, Remington Gerras, Nicholas Galitzki +88

The Simons Observatory (SO) is a cosmic microwave background (CMB) survey experiment observing from an altitude of 5,200 m in the Atacama Desert in Chile. The SO Small Aperture Tel…

astro-ph.IM2026

In-Band Scattering and Absorption of Infrared Blocking Foam Filters for Millimeter-wave Cameras

Alex Thomas, Bugao Zou, Shreya Sutariya +11

Expanded closed-cell polymer foams are widely used as thermal infrared (IR) blocking filters in millimeter-wave cameras, particularly for Cosmic Microwave Background observations.…

astro-ph.IM2026

The Simons Observatory: Rotation Performance of Cryogenic Half-Wave Plate Polarization Modulators

Kyohei Yamada, Bryce Bixler, Junna Sugiyama +10

We present the on-site rotation performance of the first three cryogenic continuously rotating half-wave plate (HWP) polarization modulators for the Simons Observatory small apertu…

astro-ph.IM2026

The Simons Observatory: On-sky performance of radio-transparent multi-layer insulation (RT-MLI) using Styroace-II Styrofoam

Samuel Day-Weiss, Nicholas Galitzki, Atsuto Takeuchi +14

We present the on-sky performance of a Radio-Transparent Multi-Layer Insulation filter (RT-MLI) that uses Styroace-II styrofoam to reject ambient thermal radiation from entering a…

astro-ph.IM2025

The Simons Observatory: Detector Polarization Angle Calibration using Sparse Wire Grid with Initial Data Sets of the Small Aperture Telescope

Hironobu Nakata, Shunsuke Adachi, Kyohei Yamada +22

Improved measurements of -modes in the cosmic microwave background can be obtained through accurate calibration of the orientation of detector antennas as projected onto the sky…

astro-ph.CO2025

The Simons Observatory: forecasted constraints on primordial gravitational waves with the expanded array of Small Aperture Telescopes

The Simons Observatory Collaboration, I. Abril-Cabezas, S. Adachi +479

We present updated forecasts for the scientific performance of the degree-scale (0.5 deg FWHM at 93 GHz), deep-field survey to be conducted by the Simons Observatory (SO). By 2027,…

astro-ph.CO2025

The Simons Observatory: Quantifying the impact of beam chromaticity on large-scale B-mode science

Nadia Dachlythra, Kevin Wolz, Susanna Azzoni +17

The Simons Observatory (SO) Small Aperture Telescopes (SATs) will observe the Cosmic Microwave Background (CMB) temperature and polarization at six frequency bands. Within these ba…

astro-ph.IM2025★ 1 cited

The Simons Observatory: Science Goals and Forecasts for the Enhanced Large Aperture Telescope

The Simons Observatory Collaboration, M. Abitbol, I. Abril-Cabezas +419

We describe updated scientific goals for the wide-field, millimeter-wave survey that will be produced by the Simons Observatory (SO). Significant upgrades to the 6-meter SO Large A…

astro-ph.CO2025★ 3 cited

The Simons Observatory: Validation of reconstructed power spectra from simulated filtered maps for the Small Aperture Telescope survey

Carlos Hervías-Caimapo, Kevin Wolz, Adrien La Posta +33

We present a transfer function-based method to estimate angular power spectra from filtered maps for cosmic microwave background (CMB) surveys. This is especially relevant for expe…

astro-ph.IM2024

The Simons Observatory: Design, Integration, and Current Status of Small Aperture Telescopes

Aashrita Mangu, Lance Corbett, Sanah Bhimani +14

The Simons Observatory (SO) is a cosmic microwave background (CMB) survey experiment located in the Atacama Desert in Chile at an elevation of 5200 meters, nominally consisting of…

astro-ph.IM2024

The Simons Observatory: Design, integration, and testing of the small aperture telescopes

Nicholas Galitzki, Tran Tsan, Jake Spisak +77

The Simons Observatory (SO) is a cosmic microwave background (CMB) survey experiment that includes small-aperture telescopes (SATs) observing from an altitude of 5,200 m in the Ata…

astro-ph.IM2023

The Simons Observatory: Cryogenic Half Wave Plate Rotation Mechanism for the Small Aperture Telescopes

K. Yamada, B. Bixler, Y. Sakurai +24

We present the requirements, design and evaluation of the cryogenic continuously rotating half-wave plate (CHWP) for the Simons Observatory (SO). SO is a cosmic microwave backgroun…