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The Simons Observatory is a ground-based telescope array located at an elevation of 5200 meters, in the Atacama Desert in Chile, designed to measure the temperature and polarization of the cosmic microwave background. It comprises four…

We present the first results of a sub-millimeter survey of distant clusters using the new Sub-mm Common-User Bolometer Array (SCUBA) on the James Clerk Maxwell Telescope. We have mapped fields in two massive, concentrated clusters, A370 at…

Astrophysics · Physics 2009-10-30 Ian Smail , R. J. Ivison , A. W. Blain

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 first generation of submillimeter(submm)-wave surveys are being carried out using the 450/850-micron SCUBA camera at the JCMT on Mauna Kea. These surveys are potentially sensitive to galaxies at very high redshift, and the galaxies that…

Astrophysics · Physics 2007-05-23 Andrew W. Blain , Ian Smail , Rob Ivison , Jean-Paul Kneib

The Cherenkov Telescope Array (CTA) is an atmospheric Cherenkov observatory that will image the cosmos in very-high-energy gamma rays. CTA will study the highest-energy particle accelerators in the Universe and potentially confirm the…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 J. Vandenbroucke

We present the results of our investigations into options for the computing platform for the imaging pipeline in the CHILES project, an ultra-deep HI pathfinder for the era of the Square Kilometre Array. CHILES pushes the current computing…

Instrumentation and Methods for Astrophysics · Physics 2015-11-03 Richard Dodson , Kevin Vinsen , Chen Wu , Attila Popping , Martin Meyer , Andreas Wicenec , Peter Quinn , Jacqueline van Gorkom , Emmanuel Momjian

I briefly review some of the most common map-making strategies for experiments targeting the polarization of the Cosmic Microwave Background (CMB), in light of the anticipated volumes of data collected by next generation observatories such…

Cosmology and Nongalactic Astrophysics · Physics 2024-06-25 Simon Biquard

The CALMA (Computer Assisted Library for MAmmography) project is a five years plan developed in a physics research frame in collaboration between INFN (Istituto Nazionale di Fisica Nucleare) and many Italian hospitals. At present a large…

Medical Physics · Physics 2009-11-10 A. Lauria , R. Palmiero , G. Forni , P. Cerello , B. Golosio , F. Fauci , R. Magro , G. Raso , S. Tangaro , P. L. Indovina

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…

The Vera C. Rubin Observatory is preparing to execute the most ambitious astronomical survey ever attempted, the Legacy Survey of Space and Time (LSST). Currently the final phase of construction is under way in the Chilean Andes, with the…

The Southern Photometric Local Universe Survey (S-PLUS) is imaging ~9300 deg^2 of the celestial sphere in twelve optical bands using a dedicated 0.8 m robotic telescope, the T80-South, at the Cerro Tololo Inter-American Observatory, Chile.…

Astrophysics of Galaxies · Physics 2021-02-18 C. Mendes de Oliveira , T. Ribeiro , W. Schoenell , A. Kanaan , R. A. Overzier , A. Molino , L. Sampedro , P. Coelho , C. E. Barbosa , A. Cortesi , M. V. Costa-Duarte , F. R. Herpich , J. A. Hernandez-Jimenez , V. M. Placco , H. S. Xavier , L. R. Abramo , R. K. Saito , A. L. Chies-Santos , A. Ederoclite , R. Lopes de Oliveira , D. R. Gonçalves , S. Akras , L. A. Almeida , F. Almeida-Fernandes , T. C. Beers , C. Bonatto , S. Bonoli , E. S. Cypriano , Erik V. R. de Lima , R. S. de Souza , G. Fabiano de Souza , F. Ferrari , T. S. Gonçalves , A. H. Gonzalez , L. A. Gutiérrez-Soto , E. A. Hartmann , Y. Jaffe , L. O. Kerber , C. Lima-Dias , P. A. A. Lopes , K. Menendez-Delmestre , L. M. I. Nakazono , P. M. Novais , R. A. Ortega-Minakata , E. S. Pereira , H. D. Perottoni , C. Queiroz , R. R. R. Reis , W. A. Santos , T. Santos-Silva , R. M. Santucci , C. L. Barbosa , B. B. Siffert , L. Sodré , S. Torres-Flores , P. Westera , D. D. Whitten , J. S. Alcaniz , Javier Alonso-García , S. Alencar , A. Alvarez-Candal , P. Amram , L. Azanha , R. H. Barbá , P. H. Bernardinelli , M. Borges Fernandes , V. Branco , D. Brito-Silva , M. L. Buzzo , J. Caffer , A. Campillay , Z. Cano , J. M. Carvano , M. Castejon , R. Cid Fernandes , M. L. L. Dantas , S. Daflon , G. Damke , R. de la Reza , L. J. de Melo de Azevedo , D. F. De Paula , K. G. Diem , R. Donnerstein , O. L. Dors , R. Dupke , S. Eikenberry , Carlos G. Escudero , Favio R. Faifer , H. Farías , B. Fernandes , C. Fernandes , S. Fontes , A. Galarza , N. S. T. Hirata , L. Katena , J. Gregorio-Hetem , J. D. Hernández-Fernández , L. Izzo , M. Jaque Arancibia , V. Jatenco-Pereira , Y. Jiménez-Teja , D. A. Kann , A. C. Krabbe , C. Labayru , D. Lazzaro , G. B. Lima Neto , Amanda R. Lopes , R. Magalhães , M. Makler , R. de Menezes , J. Miralda-Escudé , R. Monteiro-Oliveira , A. D. Montero-Dorta , N. Muñoz-Elgueta , R. S. Nemmen , J. L. Nilo Castellón , A. S. Oliveira , D. Ortíz , E. Pattaro , C. B. Pereira , B. Quint , L. Riguccini , H. J. Rocha Pinto , I. Rodrigues , F. Roig , S. Rossi , Kanak Saha , R. Santos , A. Schnorr Müller , Leandro A. Sesto , R. Silva , Analía V. Smith Castelli , Ramachrisna Teixeira , E. Telles , R. C. Thom de Souza , C. Thöne , M. Trevisan , A. de Ugarte Postigo , F. Urrutia-Viscarra , C. H. Veiga , M. Vika , A. Z. Vitorelli , A. Werle , S. V. Werner , D. Zaritsky

The cosmic microwave background (CMB) anisotropies are a powerful probe of the early universe, and have largely contributed to establishing the current standard cosmological model. To extract the information encoded in those tiny…

Cosmology and Nongalactic Astrophysics · Physics 2024-05-17 Simon Biquard

We describe the HEMT Advanced Cosmic Microwave Explorer (HACME), a balloon borne experiment designed to measure sub-degree scale Cosmic Microwave Background anisotropy over hundreds of square degrees, using a unique two dimensional scanning…

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…

Current large-aperture cosmic microwave background (CMB) telescopes have nearly maximized the number of detectors that can be illuminated while maintaining diffraction-limited image quality. The polarization-sensitive detector arrays being…

Instrumentation and Methods for Astrophysics · Physics 2016-04-20 Michael D. Niemack

The Cherenkov Telescope Array (CTA) is the next generation of ground-based gamma-ray astronomy observatory that will improve the sensitivity of current generation instruments by one order of magnitude. The LST-1 is the first telescope…

Instrumentation and Methods for Astrophysics · Physics 2022-12-02 Enrique Garcia , Thomas Vuillaume , Lukas Nickel

The Simons Observatory (SO) will be a cosmic microwave background (CMB) survey experiment with three small-aperture telescopes and one large-aperture telescope, which will observe from the Atacama Desert in Chile. In total, SO will field…

Using the 850 micron SCUBA camera on the JCMT and a scanning technique different from other sub-mm surveys, we have obtained a 125 square arcminute map centered on the Hubble Deep Field. The one-sigma sensitivity to point sources is roughly…

Astrophysics · Physics 2009-11-06 Colin Borys , Scott Chapman , Mark Halpern , Douglas Scott

We propose a new, efficient multi-scale method to decompose a map (or signal in general) into components maps that contain structures of different sizes. In the widely-used wave transform, artifacts containing negative values arise around…

Instrumentation and Methods for Astrophysics · Physics 2022-04-11 Guang-Xing Li