Related papers: The Simons Observatory: Science goals and forecast…

The Simons Observatory: Development and Validation of the Large Aperture Telescope Receiver

The Simons Observatory (SO) is a ground-based cosmic microwave background (CMB) survey experiment that consists of three 0.5 m small-aperture telescopes (SATs) and one 6 m large-aperture telescope (LAT), sited at an elevation of 5200 m in…

Instrumentation and Methods for Astrophysics · Physics 2022-07-29 Tanay Bhandarkar , Sanah Bhimani , Gabriele Coppi , Simon Dicker , Saianeesh K. Haridas , Kathleen Harrington , Jeffrey Iuliano , Bradley Johnson , Anna M. Kofman , Jack Lashner , Jenna Moore , David V. Nguyen , John Orlowski-Scherer , Karen Perez Sarmiento , Julia Robe , Maximiliano Silva-Feaver , Robert J. Thornton , Yuhan Wang , Zhilei Xu

The Simons Observatory: Deployment and current configuration of the Observatory Control System for SAT-MF1 and data access software systems

The Simons Observatory (SO) is a Cosmic Microwave Background experiment located in the Atacama Desert in Chile. SO consists of three small aperture telescopes (SATs) and one large aperture telescope (LAT) with a total of 60,000 detectors in…

Instrumentation and Methods for Astrophysics · Physics 2024-07-24 Sanah Bhimani , Jack Lashner , Simone Aiola , Kevin T. Crowley , Nicholas Galitzki , Remington G. Geras , Kathleen Harrington , Matthew Hasselfield , Alyssa Johnson , Brian J. Koopman , Hironobu Nakata , Laura Newburgh , David V. Nguyen , Michael J. Randall , Max Silva-Feaver

The Simons Observatory 220 and 280 GHz Focal-Plane Module: Design and Initial Characterization

The Simons Observatory (SO) will detect and map the temperature and polarization of the millimeter-wavelength sky from Cerro Toco, Chile across a range of angular scales, providing rich data sets for cosmological and astrophysical analysis.…

Instrumentation and Methods for Astrophysics · Physics 2022-08-10 Erin Healy , Daniel Dutcher , Zachary Atkins , Jason Austermann , Steve K. Choi , Cody J. Duell , Shannon Duff , Nicholas Galitzki , Zachary B. Huber , Johannes Hubmayr , Bradley R. Johnson , Heather McCarrick , Michael D. Niemack , Rita Sonka , Suzanne T. Staggs , Eve Vavagiakis , Yuhan Wang , Zhilei Xu , Kaiwen Zheng

Designs for next generation CMB survey strategies from Chile

New telescopes are being built to measure the Cosmic Microwave Background (CMB) with unprecedented sensitivity, including Simons Observatory (SO), CCAT-prime, the BICEP Array, SPT-3G, and CMB Stage-4. We present observing strategies for…

Instrumentation and Methods for Astrophysics · Physics 2018-08-16 Jason R. Stevens , Neil Goeckner-Wald , Reijo Keskitalo , Nialh McCallum , Aamir Ali , Julian Borrill , Michael L. Brown , Yuji Chinone , Patricio A. Gallardo , Akito Kusaka , Adrian T. Lee , Jeff McMahon , Michael D. Niemack , Lyman Page , Giuseppe Puglisi , Maria Salatino , Suet Ying D. Mak , Grant Teply , Daniel B. Thomas , Eve M. Vavagiakis , Edward J. Wollack , Zhilei Xu , Ningfeng Zhu

Simons Observatory large aperture receiver simulation overview

The Simons Observatory (SO) will make precision temperature and polarization measurements of the cosmic microwave background (CMB) using a series of telescopes which will cover angular scales between one arcminute and tens of degrees,…

Instrumentation and Methods for Astrophysics · Physics 2018-08-22 John L. Orlowski-Scherer , Ningfeng Zhu , Zhilei Xu , Aamir Ali , Kam S. Arnold , Peter C. Ashton , Gabriele Coppi , Mark Devlin , Simon Dicker , Nicholas Galitzki , Patricio A. Gallardo , Brian Keating , Adrian T. Lee , Michele Limon , Marius Lungu , Andrew May , Jeff McMahon , Michael D. Niemack , Lucio Piccirillo , Giuseppe Puglisi , Maria Salatino , Max Silva-Feaver , Sara M. Simon , Robert Thornton , Eve M. Vavagiakis

The Simons Observatory: A Minimum-Cost Matching Algorithm for Pairing Measured Resonances with Designed Detectors

The Simons Observatory (SO) is a ground-based cosmic microwave background experiment currently being deployed to Cerro Toco in the Atacama Desert of Chile. The initial deployment of SO, consisting of three 0.46m-diameter small-aperture…

Instrumentation and Methods for Astrophysics · Physics 2024-12-17 Jack Lashner , Kaiwen Zheng , Kevin T. Crowley , Nicholas Galitzki , Kathleen Harrington , Hironobu Nakata , Max Silva-Feaver

The Simons Observatory: Dark Characterization of the Large Aperture Telescope

The Simons Observatory (SO) is a cosmic microwave background experiment composed of three 0.42 m Small Aperture Telescopes (SATs) and one 6 m Large Aperture Telescope (LAT) in the Atacama Desert of Chile. The Large Aperture Telescope…

Instrumentation and Methods for Astrophysics · Physics 2024-10-03 Saianeesh K. Haridas , Zeeshan Ahmed , Tanay Bhandarkar , Mark Devlin , Simon Dicker , Shannon M. Duff , Daniel Dutcher , Kathleen Harrington , Shawn W. Henderson , Johannes Hubmayr , Bradley R. Johnson , Anna Kofman , Alex Manduca , Michael D. Niemack , Michael J. Randall , Thomas P. Satterthwaite , John Orlowski-Scherer , Benjamin L. Schmitt , Carlos Sierra , Max Silva-Feaver , Robert J. Thornton , Yuhan Wang , Kaiwen Zheng

The Simons Observatory: Alarms and Detector Quality Monitoring

The Simons Observatory (SO) is a group of modern telescopes dedicated to observing the polarized cosmic microwave background (CMB), transients, and more. The Observatory consists of four telescopes and instruments, with over 60,000…

Instrumentation and Methods for Astrophysics · Physics 2025-10-07 David V. Nguyen , Sanah Bhimani , Nicholas Galitzki , Brian J. Koopman , Jack Lashner , Laura Newburgh , Max Silva-Feaver , Kyohei Yamada

The Simons Observatory: Complex Impedance Measurements for a Full Focal-Plane Module

The Simons Observatory (SO) is a ground based Cosmic Microwave Background experiment that will be deployed to the Atacama Desert in Chile. SO will field over 60,000 transition edge sensor (TES) bolometers that will observe in six spectral…

Instrumentation and Methods for Astrophysics · Physics 2022-07-26 Jack Lashner , Joseph Seibert , Max Silva-Feaver , Tanay Bhandarkar , Kevin T. Crowley , Shannon M. Duff , Daniel Dutcher , Kathleen Harrington , Shawn W. Henderson , Amber D. Miller , Michael Niemack , Suzanne Staggs , Yuhan Wang , Kaiwen Zheng

The Simons Observatory: Characterization of the 220/280 GHz TES Detector Modules

The Simons Observatory (SO) is a new suite of cosmic microwave background telescopes in the Chilean Atacama Desert with an extensive science program spanning cosmology, Galactic and extragalactic astrophysics, and particle physics. SO will…

Instrumentation and Methods for Astrophysics · Physics 2026-04-20 Daniel Dutcher , Peter Dow , Shannon M. Duff , Shawn W. Henderson , Johannes Hubmayr , Bradley R. Johnson , Michael J. Link , Tammy J. Lucas , Michael D. Niemack , Yudai Seino , Rita F. Sonka , Suzanne Staggs , Yuhan Wang , Kaiwen Zheng

Simons Observatory: Characterization of the Large Aperture Telescope Receiver

The Simons Observatory (SO) is a ground-based cosmic microwave background (CMB) survey experiment that currently consists of three 0.42m small-aperture telescopes (SATs) and one 6m large-aperture telescope (LAT), located at an elevation of…

Instrumentation and Methods for Astrophysics · Physics 2025-01-17 Tanay Bhandarkar , Saianeesh K. Haridas , Jeff Iuliano , Anna Kofman , Alex Manduca , Karen Perez Sarmiento , John Orlowski-Scherer , Thomas P. Satterthwaite , Yuhan Wang , Zeeshan Ahmed , Jason E. Austermann , Kyuyoung Bae , Gabriele Coppi , Mark J. Devlin , Simon R Dicker , Peter N. Dow , Shannon M. Duff , Daniel Dutcher , Nicholas Galitzki , Jon E. Gudmundsson , Shawn W. Henderson , Johannes Hubmayr , Bradley R. Johnson , Matthew A. Koc , Brian J. Koopman , Michele Limon , Michael J Link , Tammy J. Lucas , Jenna E. Moore , Federico Nati , Michael D. Niemack , Carlos E. Sierra , Max Silva-Feaver , Robinjeet Singh , Suzanne T. Staggs , Rita F. Sonka , Robert J. Thornton , Tran Tsan , Jeff L. Van Lanen , Eve M. Vavagiakis , Michael R Vissers , Liam Walters , Mario Zannoni , Kaiwen Zheng

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

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, the SO Small Aperture Telescope (SAT) complement will be…

Cosmology and Nongalactic Astrophysics · Physics 2025-12-19 The Simons Observatory Collaboration , I. Abril-Cabezas , S. Adachi , P. Ade , A. E. Adler , P. Agrawal , J. Aguirre , S. Aiola , T. Alford , A. Ali , D. Alonso , M. A. Alvarez , R. An , M. Aravena , K. Arnold , P. Ashton , F. Astori , Z. Atkins , J. Austermann , S. Azzoni , C. Baccigalupi , D. Baker , R. Balafendiev , A. Baleato Lizancos , D. Barron , P. Barry , J. Bartlett , A. Basyrov , N. Battaglia , E. S. Battistelli , R. Battye , A. Bayer , A. Bazarko , J. A. Beall , R. Bean , D. Beck , S. Beckman , J. Begin , A. Beheshti , B. Beringue , T. Bhandarkar , S. Bhimani , F. Bianchini , E. Biermann , M. Billi , S. Biquard , B. Bixler , L. Bizzarri , S. Boada , D. Boettger , B. Bolliet , J. R. Bond , J. Borrill , J. Borrow , C. Braithwaite , T. L. R. Brien , M. L. Brown , S. M. Bruno , S. Bryan , R. Bustos , H. Cai , E. Calabrese , V. Calafut , F. M. Carl , A. Carones , J. Carron , A. Challinor , E. Chamberlain , P. Chanial , N. Chen , K. Cheung , B. Chiang , Y. Chinone , J. Chluba , H. S. Cho , S. K. Choi , M. Chu , J. Clancy , S. E. Clark , P. Clarke , J. Cleary , D. L. Clements , J. Connors , C. Contaldi , G. Coppi , L. Corbett , N. F. Cothard , W. Coulton , D. Crichton , K. D. Crowley , K. T. Crowley , A. Cukierman , J. M. D'Ewart , K. Dachlythra , O. Darwish , R. Datta , S. Day-Weiss , T. de Haan , S. Desai , M. Devlin , L. Di Mascolo , S. Dicker , K. Ding , C. Doux , P. Dow , S. Doyle , C. J. Duell , S. M. Duff , A. J. Duivenvoorden , J. Dunkley , M. Duparc , D. Dutcher , R. Dünner , M. Edenton , H. El Bouhargani , C. Embil Villagra , J. Errard , G. Fabbian , V. Fanfani , F. Farhadi Khouzani , G. S. Farren , J. Fergusson , S. Ferraro , R. Flauger , M. Forconi , A. Foster , K. Freese , J. C. Frisch , A. Frolov , G. Fuller , N. Galitzki , P. A. Gallardo , G. Galloni , J. T. Galvez Ghersi , K. Ganga , X. Garrido , E. Gawiser , M. Gerbino , R. Gerras , S. Giardiello , A. Gill , V. Gilles , U. Giri , E. Gleave , V. Gluscevic , N. Goeckner-Wald , S. Goldstein , J. E. Golec , S. Gordon , M. Gralla , S. Gratton , D. Green , J. C. Groh , C. Groppi , S. Grubb , Y. Guan , N. Gupta , J. E. Guðmundsson , B. Hadzhiyska , S. Hagstotz , P. Hargrave , S. Haridas , K. Harrington , I. Harrison , M. Hasegawa , M. Hasselfield , V. Haynes , M. Hazumi , A. He , E. Healy , S. W. Henderson , B. S. Hensley , E. Hertig , C. Hervías-Caimapo , M. Higuchi , C. A. Hill , J. C. Hill , M. Hilton , A. D. Hincks , G. Hinshaw , R. Hložek , A. Y. Q. Ho , S. Ho , S. P. Ho , T. D. Hoang , J. Hoh , J. Holder , J. Hood , E. Hornecker , A. L. Hornsby , S. C. Hotinli , Z. Huang , Z. B. Huber , J. Hubmayr , K. Huffenberger , A. Hughes , J. P. Hughes , A. Idicherian Lonappan , M. Ikape , K. Inaba , K. Irwin , J. Iuliano , A. H. Jaffe , B. Jain , D. Jain , H. T. Jense , O. Jeong , A. Johnson , B. R. Johnson , M. Johnson , M. E. Jones , N. Joshi , B. Jost , W. Kabalan , V. Kabra , D. Kaneko , J. Kania , E. D. Karpel , Y. Kasai , N. Katayama , B. Keating , B. Keller , R. Keskitalo , A. A. Khatua , J. Kim , T. Kisner , K. Kiuchi , K. Knowles , A. M. Kofman , Y. Koizumi , B. J. Koopman , A. Kosowsky , R. Kou , N. Krachmalnicoff , D. Kramer , A. Krishak , A. Krolewski , A. Kusaka , A. Kusiak , Y. Kvasiuk , P. La Plante , A. La Posta , A. Laguë , A. Lai , J. Lashner , M. Lattanzi , A. Lee , E. Lee , J. Leech , L. Legrand , C. Lessler , J. S. Leung , A. Lewis , Y. Li , Z. Li , M. Limon , L. Lin , E. Linder , M. Link , J. Liu , Y. Liu , J. Lloyd , J. Lonergan , T. Louis , T. Lucas , M. Ludlam , M. Lungu , M. Lyons , N. MacCrann , A. MacInnis , M. Madhavacheril , D. Mak , F. Maldonado , M. Mallaby-Kay , A. Manduca , A. Mangu , H. Mani , A. S. Maniyar , G. A. Marques , P. Masson , J. Mates , J. Mathewson , T. Matsumura , P. Mauskopf , A. May , N. McCallum , H. McCarrick , F. McCarthy , M. McCulloch , J. McMahon , P. D. Meerburg , Y. Mehta , J. Melin , E. Meulbroek , J. Meyers , A. Middleton , Y. Miki , A. Miller , M. Mirmelstein , Y. Mizozoe , B. Mohammadian , G. Montefalcone , K. Moodley , J. Moore , T. Morris , M. Morshed , T. Morton , E. Moser , T. Mroczkowski , M. Murata , J. Myers , M. Münchmeyer , S. Naess , H. Nakata , T. Namikawa , M. Nashimoto , F. Nati , P. Natoli , M. Negrello , S. K. Nerval , L. Newburgh , D. V. Nguyen , A. Nicola , M. D. Niemack , H. Nishino , Y. Nishinomiya , A. Novelli , S. O'Neill , N. Okumoto , A. Orlando , J. Orlowski-Scherer , L. Pagano , L. A. Page , S. Pandey , A. Papageorgiou , I. Paraskevakos , B. Partridge , D. Patel , R. Patki , S. Paulino Korte , M. Peel , K. Perez Sarmiento , F. Perrotta , P. Phakathi , L. Piccirillo , E. Pierpaoli , T. Pinsonneault-Marotte , G. Pisano , J. Pitocco , D. Poletti , C. Popik , B. Prasad , R. Puddu , G. Puglisi , F. J. Qu , F. Rahman , M. J. Randall , C. Ranucci , C. Raum , R. Reeves , C. L. Reichardt , M. Remazeilles , X. Ren , Y. Rephaeli , D. Riechers , B. Reid Guachalla , A. Rizzieri , J. Robe , M. F. Robertson , N. Robertson , K. Rogers , F. Rojas , A. Romero , E. Rosenberg , A. Rotti , S. Rowe , A. Roy , S. Sadeh , N. Sailer , K. Sakaguri , T. Sakuma , Y. Sakurai , M. Salatino , G. H. Sanders , D. Sasaki , M. Sathyanarayana Rao , T. P. Satterthwaite , L. Saunders , L. Scalcinati , E. Schaan , B. Schmitt , M. Schmittfull , N. Sehgal , J. Seibert , Y. Seino , U. Seljak , S. Shaikh , E. Shaw , P. Shellard , B. Sherwin , M. Shimon , J. E. Shroyer , C. Sierra , J. Sievers , C. Sifón , P. Sikhosana , M. Silva-Feaver , S. M. Simon , A. Sinclair , K. Smith , W. Sohn , X. Song , R. F. Sonka , T. Souverin , J. Spisak , S. T. Staggs , G. Stein , J. R. Stevens , R. Stompor , E. Storer , R. Sudiwala , Y. Sueno , J. Sugiyama , P. Suman , K. M. Surrao , S. Sutariya , A. Suzuki , J. Suzuki , O. Tajima , R. Takaku , S. Takakura , A. Takeuchi , I. Tansieri , A. C. Taylor , G. Teply , T. Terasaki , A. Thomas , D. B. Thomas , R. Thornton , P. Timbie , H. Trac , T. Tsan , E. Tsang King Sang , C. Tucker , J. Ullom , L. Vacher , L. Vale , A. van Engelen , J. Van Lanen , J. van Marrewijk , D. D. Van Winkle , C. Vargas , E. M. Vavagiakis , I. Veenendaal , C. Vergès , A. Villarrubia Aguilar , M. Vissers , M. Viña , K. Wagoner , S. Walker , L. Walters , Y. Wang , B. Westbrook , J. Williams , P. Williams , J. Wilson , H. Winch , E. J. Wollack , K. Wolz , J. Wong , Z. Xu , K. Yamada , E. Young , B. Yu , C. Yu , G. Zagatti , M. Zannoni , W. Zhang , K. Zheng , N. Zhu , A. Zonca , I. Zubeldia

The 90 and 150 GHz universal focal-plane modules for the Simons Observatory

The Simons Observatory (SO) is a suite of telescopes located in the Atacama Desert in Chile that will make sensitive measurements of the cosmic microwave background. There are a host of cosmological and astrophysical questions that SO is…

Instrumentation and Methods for Astrophysics · Physics 2021-12-03 Heather McCarrick , Kam Arnold , Zachary Atkins , Jason Austermann , Tanay Bhandarkar , Steve K. Choi , Cody J. Duell , Shannon M. Duff , Daniel Dutcher , Nicholas Galitzk , Erin Healy , Zachary B. Huber , Johannes Hubmayr , Bradley R. Johnson , Michael D. Niemack , Joseph Seibert , Maximiliano Silva-Feaver , Rita F. Sonka , Suzanne T. Staggs , Eve M. Vavagiakis , Yuhan Wang , Zhilei Xu , Kaiwen Zheng , Ningfeng Zhu

Simons Observatory Focal-Plane Module: In-lab Testing and Characterization Program

The Simons Observatory (SO) is a ground-based cosmic microwave background instrument to be sited in the Atacama Desert in Chile. SO will deploy 60,000 transition-edge sensor bolometers in 49 separate focal-plane modules across a suite of…

Instrumentation and Methods for Astrophysics · Physics 2023-09-08 Yuhan Wang , Kaiwen Zheng , Zachary Atkins , Jason Austermann , Tanay Bhandarkar , Steve K. Choi , Shannon M. Duff , Daniel Dutcher , Nicholas Galitzki , Erin Healy , Zachary B. Huber , Johannes Hubmayr , Bradley R. Johnson , Jack Lashner , Yaqiong Li , Heather McCarrick , Michael D. Niemack , Joseph Seibert , Maximiliano Silva-Feaver , Rita Sonka , Suzanne T. Staggs , Eve Vavagiakis , Zhilei Xu

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

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 background (CMB) polarization experiment at Parque Astron\'{o}mico…

Instrumentation and Methods for Astrophysics · Physics 2025-01-20 K. Yamada , B. Bixler , Y. Sakurai , P. C. Ashton , J. Sugiyama , K. Arnold , J. Begin , L. Corbett , S. Day-Weiss , N. Galitzki , C. A. Hill , B. R. Johnson , B. Jost , A. Kusaka , B. J. Koopman , J. Lashner , A. T. Lee , A. Mangu , H. Nishino , L. A. Page , M. J. Randall , D. Sasaki , X. Song , J. Spisak , T. Tsan , Y. Wang , P. A. Williams

The Simons Observatory: Development and Optical Evaluation of Achromatic Half-Wave Plates

The Simons Observatory (SO) experiment is a cosmic microwave background (CMB) experiment located in the Atacama Desert, Chile. The SO' s small aperture telescopes (SATs) consist of three telescopes designed for precise CMB polarimetry at…

Instrumentation and Methods for Astrophysics · Physics 2024-02-16 Junna Sugiyama , Tomoki Terasaki , Kana Sakaguri , Bryce Bixler , Yuki Sakurai , Kam Arnold , Kevin T. Crowley , Rahul Datta , Nicholas Galitzki , Masaya Hasegawa , Bradley R. Johnson , Brian Keating , Akito Kusaka , Adrian Lee , Tomotake Matsumura , Jeffrey Mcmahon , Maximiliano Silva-Feaver , Yuhan Wang , Kyohei Yamada

The Simons Observatory: Deployment of the observatory control system and supporting infrastructure

The Simons Observatory (SO) is a cosmic microwave background (CMB) observatory consisting of three small aperture telescopes and one large aperture telescope. SO is located in the Atacama Desert in Chile at an elevation of 5180m.…

Instrumentation and Methods for Astrophysics · Physics 2024-06-25 Brian J. Koopman , Sanah Bhimani , Nicholas Galitzki , Matthew Hasselfield , Jack Lashner , Hironobu Nakata , Laura Newburgh , David V. Nguyen , Tai Sakuma , Kyohei Yamada

The Simons Observatory: Studies of Detector Yield and Readout Noise From the First Large-Scale Deployment of Microwave Multiplexing at the Large Aperture Telescope

The Simons Observatory is a new ground-based cosmic microwave background experiment, which is currently being commissioned in Chile's Atacama Desert. During its survey, the observatory's small aperture telescopes will map 10% of the sky in…

Instrumentation and Methods for Astrophysics · Physics 2024-09-13 Thomas P. Satterthwaite , Zeeshan Ahmed , Kyuyoung Bae , Mark Devlin , Simon Dicker , Shannon M. Duff , Daniel Dutcher , Saianeesh K. Haridas , Shawn W. Henderson , Johannes Hubmayr , Bradley R. Johnson , Anna Kofman , Jack Lashner , Michael J. Link , Tammy J. Lucas , Alex Manduca , Michael D. Niemack , John Orlowski-Scherer , Tristan Pinsonneault-Marotte , Max Silva-Feaver , Suzanne Staggs , Eve M. Vavagiakis , Yuhan Wang , Kaiwen Zheng

Simons Observatory Microwave SQUID Multiplexing Readout -- Cryogenic RF Amplifier and Coaxial Chain Design

The Simons Observatory (SO) is an upcoming polarization-sensitive Cosmic Microwave Background (CMB) experiment on the Cerro Toco Plateau (Chile) with large overlap with other optical and infrared surveys (e.g., DESI, LSST, HSC). To enable…

Instrumentation and Methods for Astrophysics · Physics 2020-03-23 Mayuri Sathyanarayana Rao , Maximiliano Silva-Feaver , Aamir Ali , Kam Arnold , Peter Ashton , Bradley J. Dober , Cody J. Duell , Shannon M. Duff , Nicholas Galitzki , Erin Healy , Shawn Henderson , Shuay-Pwu Patty Ho , Jonathan Hoh , Anna M. Kofman , Akito Kusaka , Adrian T. Lee , Aashrita Mangu , Justin Mathewson , Philip Mauskopf , Heather McCarrick , Jenna Moore , Michael D. Niemack , Christopher Raum , Maria Salatino , Trevor Sasse , Joseph Seibert , Sara M. Simon , Suzanne Staggs , Jason R. Stevens , Grant Teply , Robert Thornton , Joel Ullom , Eve M. Vavagiakis , Benjamin Westbrook , Zhilei Xu , Ningfeng Zhu

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

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 aperture telescopes (SATs). The SATs operate at an altitude of…

Instrumentation and Methods for Astrophysics · Physics 2026-05-27 Kyohei Yamada , Bryce Bixler , Junna Sugiyama , Daichi Sasaki , Yuki Sakurai , Kam Arnold , Samuel Day-Weiss , Nicholas Galitzki , Bradley R. Johnson , Akito Kusaka , Lyman A. Page , Yoshinori Sueno