Related papers: The Simons Observatory: Design, Optimization, and …

Development and characterization of the readout system for POLARBEAR-2

POLARBEAR-2 is a next-generation receiver for precision measurements of the polarization of the cosmic microwave background (Cosmic Microwave Background (CMB)). Scheduled to deploy in early 2015, it will observe alongside the existing…

Instrumentation and Methods for Astrophysics · Physics 2014-11-10 D. Barron , P. A. R. Ade , Y. Akiba , C. Aleman , K. Arnold , M. Atlas , A. Bender , D. Boettger , J. Borrill , S. Chapman , Y. Chinone , A. Cukierman , M. Dobbs , T. Elleflot , J. Errard , G. Fabbian , C. Feng , A. Gilbert , N. Goeckner-Wald , N. W. Halverson , M. Hasegawa , K. Hattori , M. Hazumi , W. L. Holzapfel , Y. Hori , Y. Inoue , G. C. Jaehnig , A. H. Jaffe , N. Katayama , B. Keating , Z. Kermish , R. Keskitalo , T. Kisner , M. Le Jeune , A. T. Lee , E. M. Leitch , E. Linder , F. Matsuda , T. Matsumura , X. Meng , H. Morii , M. J. Myers , M. Navaroli , H. Nishino , T. Okamura , H. Paar , J. Peloton , D. Poletti , C. Raum , G. Rebeiz , C. L. Reichardt , P. L. Richards , C. Ross , K. Rotermund , D. E. Schenck , B. D. Sherwin , I. Shirley , M. Sholl , P. Siritanasak , G. Smecher , N. Stebor , B. Steinbach , R. Stompor , A. Suzuki , J. Suzuki , S. Takada , S. Takakura , T. Tomaru , B. Wilson , A. Yadav , H. Yamaguchi , O. Zahn

The Simons Observatory: Development of a Pipeline to Detect Rapid Transients in Time-Ordered Data

We introduce a method for detecting astrophysical transients evolving on timescales of milliseconds to minutes using cosmic microwave background (CMB) survey telescopes. While previous transient searches in CMB data operate in map space,…

Instrumentation and Methods for Astrophysics · Physics 2025-12-15 Justin Clancy , Carlo Bacciagalupi , Josh Borrow , Nadia Dachlythra , Allen M. Foster , Yilun Guan , Carlos Hervias-Caimapo , Adam D. Hincks , Renee Hlozek , Erika Hornecker , Kevin M. Huffenberger , Simran K. Nerval , John Orlowski-Scherer , Mike W. Peel , Christian L. Reichardt , Cristian Vargas

The Polatron: A Millimeter-Wave Cosmic Microwave Background Polarimeter for the OVRO 5.5 m Telescope

We describe the development of a bolometric receiver designed to measure the arcminute-scale polarization of the cosmic microwave background (CMB). The Polatron will be mounted at the Cassegrain focus of the 5.5 m telescope at the Owens…

Astrophysics · Physics 2007-05-23 B. J. Philhour , B. G. Keating , P. A. R. Ade , R. S. Bhatia , J. J. Bock , S. E. Church , J. Glenn , J. R. Hinderks , V. V. Hristov , W. C. Jones , M. Kamionkowski , D. E. Kumar , A. E. Lange , J. R. Leong , D. P. Marrone , B. S. Mason , P. V. Mason , M. M. Shuman , G. I. Sirbi

A High Sensitivity Fourier Transform Spectrometer for Cosmic Microwave Background Observations

The QUIJOTE Experiment was developed to study the polarization in the Cosmic Microwave Background (CMB) over the frequency range of 10-50 GHz. Its first instrument, the Multi Frequency Instrument (MFI), measures in the range 10-20 GHz which…

Instrumentation and Methods for Astrophysics · Physics 2019-10-24 Javier De Miguel-Hernández , Roger J. Hoyland , María F. Gómez Reñasco , J. Alberto Rubiño-Martín , Teodora A. Viera-Curbelo

Performance of Al-Mn Transition-Edge Sensor Bolometers in SPT-3G

SPT-3G is a polarization-sensitive receiver, installed on the South Pole Telescope, that measures the anisotropy of the cosmic microwave background (CMB) from degree to arcminute scales. The receiver consists of ten 150~mm-diameter detector…

Instrumentation and Methods for Astrophysics · Physics 2020-01-08 A. J. Anderson , P. A. R. Ade , Z. Ahmed , J. S. Avva , P. S. Barry , R. Basu Thakur , A. N. Bender , B. A. Benson , L. Bryant , K. Byrum , J. E. Carlstrom , F. W. Carter , T. W. Cecil , C. L. Chang , H. -M. Cho , J. F. Cliche , A. Cukierman , T. de Haan , E. V. Denison , J. Ding , M. A. Dobbs , D. Dutcher , W. Everett , K. R. Ferguson , A. Foster , J. Fu , J. Gallicchio , A. E. Gambrel , R. W. Gardner , A. Gilbert , J. C. Groh , S. Guns , R. Guyser , N. W. Halverson , A. H. Harke-Hosemann , N. L. Harrington , J. W. Henning , G. C. Hilton , W. L. Holzapfel , D. Howe , N. Huang , K. D. Irwin , O. B. Jeong , M. Jonas , A. Jones , T. S. Khaire , A. M. Kofman , M. Korman , D. L. Kubik , S. Kuhlmann , C. -L. Kuo , A. T. Lee , E. M. Leitch , A. E. Lowitz , S. S. Meyer , D. Michalik , J. Montgomery , A. Nadolski , T. Natoli , H. Nguyen , G. I. Noble , V. Novosad , S. Padin , Z. Pan , P. Paschos , J. Pearson , C. M. Posada , W. Quan , A. Rahlin , D. Riebel , J. E. Ruhl , J. T. Sayre , E. Shirokoff , G. Smecher , J. A. Sobrin , A. A. Stark , J. Stephen , K. T. Story , A. Suzuki , K. L. Thompson , C. Tucker , L. R. Vale , K. Vanderlinde , J. D. Vieira , G. Wang , N. Whitehorn , V. Yefremenko , K. W. Yoon , M. R. Young

Wide Field High Cadence CMB Survey Designs for Chilean Telescopes

We present new wide field survey strategies for Chilean Large Aperture Telescopes (LAT) measuring the Cosmic Microwave Background (CMB), which we call Sinusoidal Modulated High Cadence Survey Strategies. The strategies were developed during…

Instrumentation and Methods for Astrophysics · Physics 2022-09-15 Haruki Ebina , Reijo Keskitalo , Julian Borrill , Steve K. Choi , Theodore Kisner , Sigurd Naess , Michael Niemack , Jason R. Stevens

Measuring the CMB spectral distortions with COSMO: the multi-mode antenna system

In this work, we present the design and manufacturing of the two multi-mode antenna arrays of the COSMO experiment and the preliminary beam pattern measurements of their fundamental mode compared with simulations. COSMO is a cryogenic…

Instrumentation and Methods for Astrophysics · Physics 2024-06-14 E. Manzan , L. Albano , C. Franceschet , E. S. Battistelli , P. de Bernardis , M. Bersanelli , F. Cacciotti , A. Capponi , F. Columbro , G. Conenna , G. Coppi , A. Coppolecchia , G. D'Alessandro , G. De Gasperis , M. De Petris , M. Gervasi , G. Isopi , L. Lamagna , A. Limonta , E. Marchitelli , S. Masi , A. Mennella , F. Montonati , F. Nati , A. Occhiuzzi , A. Paiella , G. Pettinari , F. Piacentini , L. Piccirillo , G. Pisano , C. Tucker , M. Zannoni

First Season QUIET Observations: Measurements of CMB Polarization Power Spectra at 43 GHz in the Multipole Range 25 <= ell <= 475

The Q/U Imaging ExperimenT (QUIET) employs coherent receivers at 43GHz and 95GHz, operating on the Chajnantor plateau in the Atacama Desert in Chile, to measure the anisotropy in the polarization of the CMB. QUIET primarily targets the B…

Cosmology and Nongalactic Astrophysics · Physics 2012-07-23 QUIET Collaboration , C. Bischoff , A. Brizius , I. Buder , Y. Chinone , K. Cleary , R. N. Dumoulin , A. Kusaka , R. Monsalve , S. K. Næss , L. B. Newburgh , R. Reeves , K. M. Smith , I. K. Wehus , J. A. Zuntz , J. T. L. Zwart , L. Bronfman , R. Bustos , S. E. Church , C. Dickinson , H. K. Eriksen , P. G. Ferreira , T. Gaier , J. O. Gundersen , M. Hasegawa , M. Hazumi , K. M. Huffenberger , M. E. Jones , P. Kangaslahti , D. J. Kapner , C. R. Lawrence , M. Limon , J. May , J. J. McMahon , A. D. Miller , H. Nguyen , G. W. Nixon , T. J. Pearson , L. Piccirillo , S. J. E. Radford , A. C. S. Readhead , J. L. Richards , D. Samtleben , M. Seiffert , M. C. Shepherd , S. T. Staggs , O. Tajima , K. L. Thompson , K. Vanderlinde , R. Williamson , B. Winstein

The Simons Observatory: gain, bandpass and polarization-angle calibration requirements for B-mode searches

We quantify the calibration requirements for systematic uncertainties for next-generation ground-based observatories targeting the large-angle $B$-mode polarization of the Cosmic Microwave Background, with a focus on the Simons Observatory…

Cosmology and Nongalactic Astrophysics · Physics 2021-06-16 Maximilian H. Abitbol , David Alonso , Sara M. Simon , Jack Lashner , Kevin T. Crowley , Aamir M. Ali , Susanna Azzoni , Carlo Baccigalupi , Darcy Barron , Michael L. Brown , Erminia Calabrese , Julien Carron , Yuji Chinone , Jens Chluba , Gabriele Coppi , Kevin D. Crowley , Mark Devlin , Jo Dunkley , Josquin Errard , Valentina Fanfani , Nicholas Galitzki , Martina Gerbino , J. Colin Hill , Bradley R. Johnson , Baptiste Jost , Brian Keating , Nicoletta Krachmalnicoff , Akito Kusaka , Adrian T. Lee , Thibaut Louis , Mathew S. Madhavacheril , Heather McCarrick , Jeffrey McMahon , P. Daniel Meerburg , Federico Nati , Haruki Nishino , Lyman A. Page , Davide Poletti , Giuseppe Puglisi , Michael J. Randall , Aditya Rotti , Jacob Spisak , Aritoki Suzuki , Grant P. Teply , Clara Vergès , Edward J. Wollack , Zhilei Xu , Mario Zannoni

Low Temperature Detectors for CMB Imaging Arrays

We review advances in low temperature detector (LTD) arrays for Cosmic Microwave Background (CMB) polarization experiments, with a particular emphasis on imaging arrays. We briefly motivate the science case, which has spurred a large number…

Instrumentation and Methods for Astrophysics · Physics 2018-08-29 Johannes Hubmayr , Jason E. Austermann , James A. Beall , Daniel T. Becker , Bradley Dober , Shannon M. Duff , Jiansong Gao , Gene C. Hilton , Christopher M. McKenney , Joel N. Ullom , Jeff Van Lanen , Michael R. Vissers

Detecting the B-mode Polarisation of the CMB with Clover

We describe the objectives, design and predicted performance of Clover, which is a ground-based experiment to measure the faint ``B-mode'' polarisation pattern in the cosmic microwave background (CMB). To achieve this goal, clover will make…

Astrophysics · Physics 2008-06-03 C. E. North , B. R. Johnson , P. A. R. Ade , M. D. Audley , C. Baines , R. A. Battye , M. L. Brown , P. Cabella , P. G. Calisse , A. D. Challinor , W. D. Duncan , P. G. Ferreira , W. K. Gear , D. Glowacka , D. J. Goldie , P. K. Grimes , M. Halpern , V. Haynes , G. C. Hilton , K. D. Irwin , M. E. Jones , A. N. Lasenby , P. J. Leahy , J. Leech , B. Maffei , P. Mauskopf , S. J. Melhuish , D. O'Dea , S. M. Parsley , L. Piccirillo , G. Pisano , C. D. Reintsema , G. Savini , R. Sudiwala , D. Sutton , A. C. Taylor , G. Teleberg , D. Titterington , V. Tsaneva , C. Tucker , R. Watson , S. Withington , G. Yassin , J. Zhang

The Atacama Cosmology Telescope

The Atacama Cosmology Telescope (ACT) project is described. This multi-institution collaboration aims to produce arcminute-resolution and micro-Kelvin sensitivity maps of the microwave background temperature over 200 square degrees of the…

Astrophysics · Physics 2015-06-24 Arthur Kosowsky

The Cosmic Background Imager

Design and performance details are given for the Cosmic Background Imager (CBI), an interferometer array that is measuring the power spectrum of fluctuations in the cosmic microwave background radiation (CMBR) for multipoles in the range…

Astrophysics · Physics 2009-11-07 S. Padin , M. C. Shepherd , J. K. Cartwright , R. G. Keeney , B. S. Mason , T. J. Pearson , A. C. S. Readhead , W. L. Schaal , J. Sievers , P. S. Udomprasert , J. K. Yamasaki , W. L. Holzapfel , J. E. Carlstrom , M. Joy , S. T. Myers , A. Otarola

Calibration of detector time constant with a thermal source for the POLARBEAR-2A CMB polarization experiment

The Simons Array (SA) project is a ground-based Cosmic Microwave Background (CMB) polarization experiment. The SA observes the sky using three telescopes, and POLARBEAR-2A (PB-2A) is the receiver system on the first telescope. For the…

Instrumentation and Methods for Astrophysics · Physics 2024-12-31 S. Takatori , M. Hasegawa , M. Hazumi , D. Kaneko , N. Katayama , A. T. Lee , S. Takakura , T. Tomaru , T. Adkins , D. Barron , Y. Chinone , K. T. Crowley , T. de Haan , T. Elleflot , N. Farias , C. Feng , T. Fujino , J. C. Groh , H. Hirose , F. Matsuda , H. Nishino , Y. Segawa , P. Siritanasak , A. Suzuki , K. Yamada

The Simons Observatory: Magnetic Shielding Measurements for the Universal Multiplexing Module

The Simons Observatory (SO) includes four telescopes that will measure the temperature and polarization of the cosmic microwave background using over 60,000 highly sensitive transition-edge bolometers (TES). These multichroic TES bolometers…

Instrumentation and Methods for Astrophysics · Physics 2023-03-03 Zachary B. Huber , Yaqiong Li , Eve M. Vavagiakis , Steve K. Choi , Jake Connors , Nicholas F. Cothard , Cody J. Duell , Nicholas Galitzki , Erin Healy , Johannes Hubmayr , Bradley R. Johnson , Benjamin Keller , Heather McCarrick , Michael D. Niemack , Yuhan Wang , Zhilei Xu , Kaiwen Zheng

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

The Simons Observatory: A fully remote controlled calibration system with a sparse wire grid for cosmic microwave background telescopes

For cosmic microwave background (CMB) polarization observations, calibration of detector polarization angles is essential. We have developed a fully remote controlled calibration system with a sparse wire grid that reflects linearly…

Instrumentation and Methods for Astrophysics · Physics 2024-02-21 Masaaki Murata , Hironobu Nakata , Kengo Iijima , Shunsuke Adachi , Yudai Seino , Kenji Kiuchi , Frederick Matsuda , Michael J. Randall , Kam Arnold , Nicholas Galitzki , Bradley R. Johnson , Brian Keating , Akito Kusaka , John B. Lloyd , Joseph Seibert , Maximiliano Silva-Feaver , Osamu Tajima , Tomoki Terasaki , Kyohei Yamada

Magnetic Sensitivity of AlMn TESes and Shielding Considerations for Next-Generation CMB Surveys

In the next decade, new ground-based Cosmic Microwave Background (CMB) experiments such as Simons Observatory (SO), CCAT-prime, and CMB-S4 will increase the number of detectors observing the CMB by an order of magnitude or more,…

Instrumentation and Methods for Astrophysics · Physics 2018-05-17 E. M. Vavagiakis , S. W. Henderson , K. Zheng , H. -M. Cho , N. F. Cothard , B. Dober , S. M. Duff , P. A. Gallardo , G. Hilton , J. Hubmayr , K. D. Irwin , B. J. Koopman , D. Li , F. Nati , M. D. Niemack , C. D. Reintsema , S. Simon , J. R. Stevens , A. Suzuki , B. Westbrook

Characterization and Status of a Terahertz Telescope

The Receiver Lab Telescope (RLT) is a ground-based terahertz observatory, located at an altitude of 5525 m on Cerro Sairecabur, Chile. The RLT has been in operation since late 2002, producing the first well-calibrated astronomical data from…

Astrophysics · Physics 2007-05-23 D. P. Marrone , R. Blundell , H. Gibson , S. Paine , D. C. Papa , E. Tong

COSMOSOMAS: A Circular Scanning Instrument to Map the Sky at Centimetric Wavelengths

We describe the first instrument of a Cosmic Microwave Background experiment for mapping cosmological structures on medium angular scales (the COSMOSOMAS experiment) and diffuse Galactic emission. The instrument is located at Teide…

Astrophysics · Physics 2009-11-07 J. E. Gallegos , J. F. Macias-Perez , C. M. Gutierrez , R. Rebolo , R. A. Watson , R. J. Hoyland , S. Fernandez-Cerezo