Related papers: The Simons Observatory: component separation pipel…

The Simons Observatory: pipeline comparison and validation for large-scale B-modes

The upcoming Simons Observatory Small Aperture Telescopes aim at achieving a constraint on the primordial tensor-to-scalar ratio $r$ at the level of $\sigma(r=0)\lesssim0.003$, observing the polarized CMB in the presence of partial sky…

Cosmology and Nongalactic Astrophysics · Physics 2024-07-10 K. Wolz , S. Azzoni , C. Hervias-Caimapo , J. Errard , N. Krachmalnicoff , D. Alonso , C. Baccigalupi , A. Baleato Lizancos , M. L. Brown , E. Calabrese , J. Chluba , J. Dunkley , G. Fabbian , N. Galitzki , B. Jost , M. Morshed , F. Nati

The Simons Observatory: Combining delensing and foreground cleaning for improved constraints on inflation

The Simons Observatory (SO), a next-generation ground-based CMB experiment in its final stages of construction, will target primordial $B$-modes with unprecedented sensitivity to set tight bounds on the amplitude of inflationary…

Cosmology and Nongalactic Astrophysics · Physics 2024-05-24 Emilie Hertig , Kevin Wolz , Toshiya Namikawa , Antón Baleato Lizancos , Susanna Azzoni , Anthony Challinor

The Simons Observatory: Combining cross-spectral foreground cleaning with multitracer $B$-mode delensing for improved constraints on inflation

The Simons Observatory (SO), due to start full science operations in early 2025, aims to set tight constraints on inflationary physics by inferring the tensor-to-scalar ratio $r$ from measurements of CMB polarization $B$-modes. Its nominal…

Cosmology and Nongalactic Astrophysics · Physics 2024-09-12 Emilie Hertig , Kevin Wolz , Toshiya Namikawa , Antón Baleato Lizancos , Susanna Azzoni , Irene Abril-Cabezas , David Alonso , Carlo Baccigalupi , Erminia Calabrese , Anthony Challinor , Josquin Errard , Giulio Fabbian , Carlos Hervías-Caimapo , Baptiste Jost , Nicoletta Krachmalnicoff , Anto I. Lonappan , Magdy Morshed , Luca Pagano , Blake Sherwin

Removal of Galactic foregrounds for the Simons Observatory primordial gravitational wave search

Upcoming observations from the Simons Observatory have been projected to constrain the tensor-to-scalar ratio, $r$, at the level of $\sigma(r)=$0.003. Here we describe one of the forecasting algorithms for the Simons Observatory in more…

Cosmology and Nongalactic Astrophysics · Physics 2019-05-23 Ben Thorne , Jo Dunkley , David Alonso , Maximilian H. Abitbol , Josquin Errard , J. Colin Hill , Brian Keating , Grant Teply , Edward J. Wollack

The Simons Observatory: Project Overview

The Simons Observatory (SO) will make precision temperature and polarization measurements of the cosmic microwave background (CMB) over angular scales between 1 arcminute and tens of degrees using over 60,000 detectors and sampling…

Instrumentation and Methods for Astrophysics · Physics 2018-10-08 Nicholas Galitzki

Galactic foreground constraints on primordial $B$-mode detection for ground-based experiments

Contamination by polarized foregrounds is one of the biggest challenges for future polarized cosmic microwave background (CMB) surveys and the potential detection of primordial $B$-modes. Future experiments, such as Simons Observatory (SO)…

Cosmology and Nongalactic Astrophysics · Physics 2022-01-12 Carlos Hervías-Caimapo , Anna Bonaldi , Michael L. Brown , Kevin M. Huffenberger

The Simons Observatory: Instrument Overview

The Simons Observatory (SO) will make precise temperature and polarization measurements of the cosmic microwave background (CMB) using a set of telescopes which will cover angular scales between 1 arcminute and tens of degrees, contain over…

Instrumentation and Methods for Astrophysics · Physics 2019-08-13 Nicholas Galitzki , Aamir Ali , Kam S. Arnold , Peter C. Ashton , Jason E. Austermann , Carlo Baccigalupi , Taylor Baildon , Darcy Barron , James A. Beall , Shawn Beckman , Sarah Marie M. Bruno , Sean Bryan , Paolo G. Calisse , Grace E. Chesmore , Yuji Chinone , Steve K. Choi , Gabriele Coppi , Kevin D. Crowley , Kevin T. Crowley , Ari Cukierman , Mark J. Devlin , Simon Dicker , Bradley Dober , Shannon M. Duff , Jo Dunkley , Giulio Fabbian , Patricio A. Gallardo , Martina Gerbino , Neil Goeckner-Wald , Joseph E. Golec , Jon E. Gudmundsson , Erin E. Healy , Shawn Henderson , Charles A. Hill , Gene C. Hilton , Shuay-Pwu Patty Ho , Logan A. Howe , Johannes Hubmayr , Oliver Jeong , Brian Keating , Brian J. Koopman , Kenji Kuichi , Akito Kusaka , Jacob Lashner , Adrian T. Lee , Yaqiong Li , Michele Limon , Marius Lungu , Frederick Matsuda , Philip D. Mauskopf , Andrew J. May , Nialh McCallum , Jeff McMahon , Federico Nati , Michael D. Niemack , John L. Orlowski-Scherer , Stephen C. Parshley , Lucio Piccirillo , Mayuri Sathyanarayana Rao , Christopher Raum , Maria Salatino , Joseph S. Seibert , Carlos Sierra , Max Silva-Feaver , Sara M. Simon , Suzanne T. Staggs , Jason R. Stevens , Aritoki Suzuki , Grant Teply , Robert Thornton , Calvin Tsai , Joel N. Ullom , Eve M. Vavagiakis , Michael R. Vissers , Benjamin Westbrook , Edward J. Wollack , Zhilei Xu , Ningfeng Zhu

The Simons Observatory: Constraining inflationary gravitational waves with multi-tracer B-mode delensing

We introduce and validate a delensing framework for the Simons Observatory (SO), which will be used to improve constraints on inflationary gravitational waves (IGWs) by reducing the lensing noise in measurements of the $B$-modes in CMB…

Cosmology and Nongalactic Astrophysics · Physics 2024-12-30 Toshiya Namikawa , Anton Baleato Lizancos , Naomi Robertson , Blake D. Sherwin , Anthony Challinor , David Alonso , Susanna Azzoni , Carlo Baccigalupi , Erminia Calabrese , Julien Carron , Yuji Chinone , Jens Chluba , Gabriele Coppi , Josquin Errard , Giulio Fabbian , Simone Ferraro , Alba Kalaja , Antony Lewis , Mathew S. Madhavacheril , P. Daniel Meerburg , Joel Meyers , Federico Nati , Giorgio Orlando , Davide Poletti , Giuseppe Puglisi , Mathieu Remazeilles , Neelima Sehgal , Osamu Tajima , Grant Teply , Alexander van Engelen , Edward J. Wollack , Zhilei Xu , Byeonghee Yu , Ningfeng Zhu , Andrea Zonca

Studies of Systematic Uncertainties for Simons Observatory: Optical Effects and Sensitivity Considerations

The Simons Observatory (SO) is a new experiment that aims to measure the cosmic microwave background (CMB) in temperature and polarization. SO will measure the polarized sky over a large range of microwave frequencies and angular scales…

Instrumentation and Methods for Astrophysics · Physics 2018-08-16 Patricio A. Gallardo , Jon Gudmundsson , Brian J. Koopman , Frederick T. Matsuda , Sara M. Simon , Aamir Ali , Sean Bryan , Yuji Chinone , Gabriele Coppi , Nicholas Cothard , Mark J. Devlin , Simon Dicker , Giulio Fabbian , Nicholas Galitzki , Charles A. Hill , Brian Keating , Akito Kusaka , Jacob Lashner , Adrian T. Lee , Michele Limon , Philip D. Mauskopf , Jeff McMahon , Federico Nati , Michael D. Niemack , John L. Orlowski-Scherer , Stephen C. Parshley , Giuseppe Puglisi , Christian L Reichardt , Maria Salatino , Suzanne Staggs , Aritoki Suzuki , Eve M. Vavagiakis , Edward J. Wollack , Zhilei Xu , Ningfeng Zhu

Simons Observatory Small Aperture Telescope overview

The Simons Observatory (SO) is a cosmic microwave background (CMB) experiment from the Atacama Desert in Chile comprising three small-aperture telescopes (SATs) and one large-aperture telescope (LAT). In total, SO will field over 60,000…

Instrumentation and Methods for Astrophysics · Physics 2021-01-29 Kenji Kiuchi , Shunsuke Adachi , Aamir M. Ali , Kam Arnold , Peter Ashton , Jason E. Austermann , Andrew Bazako , James A. Beall , Yuji Chinone , Gabriele Coppi , Kevin D. Crowley , Kevin T. Crowley , Simon Dicker , Bradley Dober , Shannon M. Duff , Giulio Fabbian , Nicholas Galitzki , Joseph E. Golec , Jon E. Gudmundsson , Kathleen Harrington , Masaya Hasegawa , Makoto Hattori , Charles A. Hill , Shuay-Pwu Patty Ho , Johannes Hubmayr , Bradley R. Johnson , Daisuke Kaneko , Nobuhiko Katayama , Brian Keating , Akito Kusaka , Jack Lashner , Adrian T. Lee , Frederick Matsuda , Heather McCarrick , Masaaki Murata , Federico Nati , Yume Nishinomiya , Lyman Page , Mayuri Sathyanarayana Rao , Christian L. Reichardt , Kana Sakaguri , Yuki Sakurai , Joseph Seibert , Jacob Spisak , Osamu Tajima , Grant P. Teply , Tomoki Terasaki , Tran Tsan , Samantha Walker , Edward J. Wollack , Zhilei Xu , Kyohei Yamada , Mario Zannoni , Ningfeng Zhu

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

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 experiments targeting the faint primordial gravitational wave…

Cosmology and Nongalactic Astrophysics · Physics 2025-07-08 Carlos Hervías-Caimapo , Kevin Wolz , Adrien La Posta , Susanna Azzoni , David Alonso , Kam Arnold , Carlo Baccigalupi , Simon Biquard , Michael L. Brown , Erminia Calabrese , Yuji Chinone , Samuel Day-Weiss , Jo Dunkley , Rolando Dünner , Josquin Errard , Giulio Fabbian , Ken Ganga , Serena Giardiello , Emilie Hertig , Kevin M. Huffenberger , Bradley R. Johnson , Baptiste Jost , Reijo Keskitalo , Theodore S. Kisner , Thibaut Louis , Magdy Morshed , Lyman A. Page , Christian L. Reichardt , Erik Rosenberg , Max Silva-Feaver , Wuhyun Sohn , Yoshinori Sueno , Dan B. Thomas , Ema Tsang King Sang , Amalia Villarrubia-Aguilar , Kyohei Yamada

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

Small Aperture Telescopes for the Simons Observatory

The Simons Observatory (SO) is an upcoming cosmic microwave background (CMB) experiment located on Cerro Toco, Chile, that will map the microwave sky in temperature and polarization in six frequency bands spanning 27 to 285 GHz. SO will…

Instrumentation and Methods for Astrophysics · Physics 2020-05-20 Aamir M. Ali , Shunsuke Adachi , Kam Arnold , Peter Ashton , Andrew Bazarko , Yuji Chinone , Gabriele Coppi , Lance Corbett , Kevin D Crowley , Kevin T Crowley , Mark Devlin , Simon Dicker , Shannon Duff , Chris Ellis , Nicholas Galitzki , Neil Goeckner-Wald , Kathleen Harrington , Erin Healy , Charles A Hill , Shuay-Pwu Patty Ho , Johannes Hubmayr , Brian Keating , Kenji Kiuchi , Akito Kusaka , Adrian T Lee , Michael Ludlam , Aashrita Mangu , Frederick Matsuda , Heather McCarrick , Federico Nati , Michael D. Niemack , Haruki Nishino , John Orlowski-Scherer , Mayuri Sathyanarayana Rao , Christopher Raum , Yuki Sakurai , Maria Salatino , Trevor Sasse , Joseph Seibert , Carlos Sierra , Maximiliano Silva-Feaver , Jacob Spisak , Sara M Simon , Suzanne Staggs , Osamu Tajima , Grant Teply , Tran Tsan , Edward Wollack , Bejamin Westbrook , Zhilei Xu , Mario Zannoni , Ningfeng Zhu

Studies of Systematic Uncertainties for Simons Observatory: Detector Array Effects

In this proceeding, we present studies of instrumental systematic effects for the Simons Obsevatory (SO) that are associated with the detector system and its interaction with the full SO experimental systems. SO will measure the Cosmic…

Instrumentation and Methods for Astrophysics · Physics 2018-09-10 Kevin T. Crowley , Sara M. Simon , Max Silva-Feaver , Neil Goeckner-Wald , Aamir Ali , Jason Austermann , Michael L. Brown , Yuji Chinone , Ari Cukierman , Bradley Dober , Shannon M. Duff , Jo Dunkley , Josquin Errard , Giulio Fabbian , Patricio A. Gallardo , Shuay-Pwu Patty Ho , Johannes Hubmayr , Brian Keating , Akito Kusaka , Nialh McCallum , Jeff McMahon , Federico Nati , Michael D. Niemack , Giuseppe Puglisi , Mayuri Sathyanarayana Rao , Christian L. Reichardt , Maria Salatino , Praween Siritanasak , Suzanne Staggs , Aritoki Suzuki , Grant Teply , Daniel B. Thomas , Joel N. Ullom , Clara Vergès , Michael R. Vissers , Benjamin Westbrook , Edward J. Wollack , Zhilei Xu , Ningfeng Zhu

The Simons Observatory: Overview of data acquisition, control, monitoring, and computer infrastructure

The Simons Observatory (SO) is an upcoming polarized cosmic microwave background (CMB) survey experiment with three small-aperture telescopes and one large-aperture telescope that will observe from the Atacama Desert in Chile. In total, SO…

Instrumentation and Methods for Astrophysics · Physics 2020-12-21 Brian J. Koopman , Jack Lashner , Lauren J. Saunders , Matthew Hasselfield , Tanay Bhandarkar , Sanah Bhimani , Steve K. Choi , Cody J. Duell , Nicholas Galitzki , Kathleen Harrington , Adam D. Hincks , Shuay-Pwu Patty Ho , Laura Newburgh , Christian L. Reichardt , Joseph Seibert , Jacob Spisak , Benjamin Westbrook , Zhilei Xu , Ningfeng Zhu

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

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 an array of three 0.42-meter small aperture telescopes…

Instrumentation and Methods for Astrophysics · Physics 2024-12-03 Aashrita Mangu , Lance Corbett , Sanah Bhimani , Fred Carl , Samuel Day-Weiss , Brooke DiGia , Josquin Errard , Nicholas Galitzki , Masashi Hazumi , Shawn W. Henderson , Varun Kabra , Amber Miller , Jenna Moore , Xue Song , Tran Tsan , Yuhan Wang , Andrea Zonca

Studies of Systematic Uncertainties for Simons Observatory: Polarization Modulator Related Effects

The Simons Observatory (SO) will observe the temperature and polarization anisotropies of the cosmic microwave background (CMB) over a wide range of frequencies (27 to 270 GHz) and angular scales by using both small (0.5 m) and large (6 m)…

Instrumentation and Methods for Astrophysics · Physics 2018-08-23 Maria Salatino , Jacob Lashner , Martina Gerbino , Sara M. Simon , Joy Didier , Aamir Ali , Peter C. Ashton , Sean Bryan , Yuji Chinone , Kevin Coughlin , Kevin T. Crowley , Giulio Fabbian , Nicholas Galitzki , Neil Goeckner-Wald , Joseph E. Golec , Jon E. Gudmundsson , Charles A. Hill , Brian Keating , Akito Kusaka , Adrian T. Lee , Jeffrey McMahon , Amber D. Miller , Giuseppe Puglisi , Christian L. Reichardt , Grant Teply , Zhilei Xu , Ningfeng Zhu

Measuring the tensor to scalar ratio from CMB B-modes in presence of foregrounds

Abreg: We investigate the impact of polarized foreground emission on the performances of future CMB experiments in measuring the tensor-to-scalar ratio r. We design a component separation pipeline, based on the Smica method, aimed at…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 Marc Betoule , E. Pierpaoli , J. Delabrouille , M. Le Jeune , Jean-François Cardoso

Enhancing Primordial B-mode Detection: Comprehensive Delensing Pipelines for Improved Sensitivity to $r$

Recognizing the impact of contamination from weak gravitational lensing B-modes induced by Large Scale Structure, we examine delensing methods to enhance sensitivity to the tensor-to-scalar ratio $r$ in primordial B-mode detection…

Cosmology and Nongalactic Astrophysics · Physics 2025-11-27 Wen-Zheng Chen , Yang Liu , Siyu Li , Bin Hu , Hong Li