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In this paper we present the first on-sky results with the fibered aperture masking instrument FIRST. Its principle relies on the combination of spatial filtering and aperture masking using single-mode fibers, a novel technique that is…

Instrumentation and Methods for Astrophysics · Physics 2015-06-04 E. Huby , G. Perrin , F. Marchis , S. Lacour , T. Kotani , G. Duchêne , E. Choquet , E. L. Gates , J. M. Woillez , O. Lai , P. Fédou , C. Collin , F. Chapron , V. Arslanyan , K. J. Burns

This paper reports a 9-night asteroseismic observation program conducted in January 2007 with the new spectrometer Sophie at the OHP 193-cm telescope, on the F5 IV-V target Procyon A. This first asteroseismic program with Sophie was…

Astrophysics · Physics 2009-11-13 B. Mosser , F. Bouchy , M. Martic

We present the first detection of the baryon acoustic oscillations (BAO) signal obtained using unblinded data collected during the initial two months of operations of the Stage-IV ground-based Dark Energy Spectroscopic Instrument (DESI).…

Many scientific goals for the Dark Energy Survey (DES) require calibration of optical/NIR broadband $b = grizY$ photometry that is stable in time and uniform over the celestial sky to one percent or better. It is also necessary to limit to…

We present baryon acoustic oscillation (BAO) measurements from more than 14 million galaxies and quasars drawn from the Dark Energy Spectroscopic Instrument (DESI) Data Release 2 (DR2), based on three years of operation. For cosmology…

Cosmology and Nongalactic Astrophysics · Physics 2025-10-10 DESI Collaboration , M. Abdul-Karim , J. Aguilar , S. Ahlen , S. Alam , L. Allen , C. Allende Prieto , O. Alves , A. Anand , U. Andrade , E. Armengaud , A. Aviles , S. Bailey , C. Baltay , P. Bansal , A. Bault , J. Behera , S. BenZvi , D. Bianchi , C. Blake , S. Brieden , A. Brodzeller , D. Brooks , E. Buckley-Geer , E. Burtin , R. Calderon , R. Canning , A. Carnero Rosell , P. Carrilho , L. Casas , F. J. Castander , R. Cereskaite , M. Charles , E. Chaussidon , J. Chaves-Montero , D. Chebat , X. Chen , T. Claybaugh , S. Cole , A. P. Cooper , A. Cuceu , K. S. Dawson , A. de la Macorra , A. de Mattia , N. Deiosso , J. Della Costa , R. Demina , A. Dey , B. Dey , Z. Ding , P. Doel , J. Edelstein , D. J. Eisenstein , W. Elbers , P. Fagrelius , K. Fanning , E. Fernández-García , S. Ferraro , A. Font-Ribera , J. E. Forero-Romero , C. S. Frenk , C. Garcia-Quintero , L. H. Garrison , E. Gaztañaga , H. Gil-Marín , S. Gontcho A Gontcho , D. Gonzalez , A. X. Gonzalez-Morales , C. Gordon , D. Green , G. Gutierrez , J. Guy , B. Hadzhiyska , C. Hahn , S. He , M. Herbold , H. K. Herrera-Alcantar , M. Ho , K. Honscheid , C. Howlett , D. Huterer , M. Ishak , S. Juneau , N. V. Kamble , N. G. Karaçaylı , R. Kehoe , S. Kent , A. G. Kim , D. Kirkby , T. Kisner , S. E. Koposov , A. Kremin , A. Krolewski , O. Lahav , C. Lamman , M. Landriau , D. Lang , J. Lasker , J. M. Le Goff , L. Le Guillou , A. Leauthaud , M. E. Levi , Q. Li , T. S. Li , K. Lodha , M. Lokken , F. Lozano-Rodríguez , C. Magneville , M. Manera , P. Martini , W. L. Matthewson , A. Meisner , J. Mena-Fernández , A. Menegas , T. Mergulhão , R. Miquel , J. Moustakas , A. Muñoz-Gutiérrez , D. Muñoz-Santos , A. D. Myers , S. Nadathur , K. Naidoo , L. Napolitano , J. A. Newman , G. Niz , H. E. Noriega , E. Paillas , N. Palanque-Delabrouille , J. Pan , J. Peacock , Marcos Pellejero Ibanez , W. J. Percival , A. Pérez-Fernández , I. Pérez-Ràfols , M. M. Pieri , C. Poppett , F. Prada , D. Rabinowitz , A. Raichoor , C. Ramírez-Pérez , M. Rashkovetskyi , C. Ravoux , J. Rich , A. Rocher , C. Rockosi , J. Rohlf , J. O. Román-Herrera , A. J. Ross , G. Rossi , R. Ruggeri , V. Ruhlmann-Kleider , L. Samushia , E. Sanchez , N. Sanders , D. Schlegel , M. Schubnell , H. Seo , A. Shafieloo , R. Sharples , J. Silber , F. Sinigaglia , D. Sprayberry , T. Tan , G. Tarlé , P. Taylor , W. Turner , L. A. Ureña-López , R. Vaisakh , F. Valdes , G. Valogiannis , M. Vargas-Magaña , L. Verde , M. Walther , B. A. Weaver , D. H. Weinberg , M. White , M. Wolfson , C. Yèche , J. Yu , E. A. Zaborowski , P. Zarrouk , Z. Zhai , H. Zhang , C. Zhao , G. B. Zhao , R. Zhou , H. Zou

We carry out an independent re-analysis of the Dark Energy Spectroscopic Instrument (DESI) public dataset, focusing on extensions to the standard cosmological model, $\Lambda$CDM. Utilizing the dataset and Effective Field Theory (EFT)-based…

Cosmology and Nongalactic Astrophysics · Physics 2026-04-15 Anton Chudaykin , Mikhail M. Ivanov , Oliver H. E. Philcox

We report on the upgraded One Degree Imager (ODI) at the WIYN 3.5 meter telescope at the Kitt Peak Observatory after the focal plane was expanded by an additional seventeen detectors in spring 2015. The now thirty Orthogonal Transfer Array…

The Planck High Frequency Instrument (HFI) is designed to measure the temperature and polarization anisotropies of the Cosmic Microwave Background and galactic foregrounds in six wide bands centered at 100, 143, 217, 353, 545 and 857 GHz at…

Instrumentation and Methods for Astrophysics · Physics 2015-05-27 Planck HFI Core Team , P. A. R. Ade , N. Aghanim , R. Ansari , M. Arnaud , M. Ashdown , J. Aumont , A. J. Banday , M. Bartelmann , J. G. Bartlett , E. Battaner , K. Benabed , A. Benot , J. -P. Bernard , M. Bersanelli , R. Bhatia , J. J. Bock , J. R. Bond , J. Borrill , F. R. Bouchet , F. Boulanger , T. Bradshaw , E. Brelle , M. Bucher , P. Camus , J. -F. Cardoso , A. Catalano , A. Challinor , A. Chamballu , J. Charra , M. Charra , R. -R. Chary , C. Chiang , S. Church , D. L. Clements , S. Colombi , F. Couchot , A. Coulais , C. Cressiot , B. P. Crill , M. Crook , P. de Bernardis , J. Delabrouille , J. -M. Delouis , F. -X. Désert , K. Dolag , H. Dole , O. Doré , M. Douspis , G. Efstathiou , P. Eng , C. Filliard , O. Forni , P. Fosalba , J. -J. Fourmond , K. Ganga , M. Giard , D. Girard , Y. Giraud-Héraud , R. Gispert , K. M. Gorski , S. Gratton , M. Griffin , G. Guyot , J. Haissinski , D. Harrison , G. Helou , S. Henrot-Versillé , C. Hernandez-Monteagudo , S. R. Hildebrandt , R. Hills , E. Hivon , M. Hobson , W. A. Holmes , K. M. Huenberger , A. H. Jae , W. C. Jones , J. Kaplan , R. Kneissl , L. Knox , G. Lagache , J. -M. Lamarre , P. Lami , A. E. Lange , A. Lasenby , A. Lavabre , C. R. Lawrence , B. Leriche , C. Leroy , Y. Longval , J. F. Macas-Perez , T. Maciaszek , C. J. MacTavish , B. Maei , N. Mandolesi , R. Mann , B. Mansoux , S. Masi , T. Matsumura , P. McGehee , J. -B. Melin , C. Mercier , M. -A. Miville-Deschnes , A. Moneti , L. Montier , D. Mortlock , A. Murphy , F. Nati , C. B. Nettereld , H. U. Norgaard-Nielsen , C. North , F. Noviello , D. Novikov , S. Osborne , C. Paine , F. Pajot , G. Patanchon , T. Peacocke , T. J. Pearson , O. Perdereau , L. Perotto , F. Piacentini , M. Piat , S. Plaszczynski , E. Pointecouteau , R. Pons , N. Ponthieu , G. Prezeau , S. Prunet , J. -L. Puget , W. T. Reach , C. Renault , I. Ristorcelli , G. Rocha , C. Rosset , G. Roudier , M. Rowan-Robinson , B. Rusholme , D. Santos , G. Savini , B. M. Schaefer , P. Shellard , L. Spencer , J. -L. Starck , P. Stassi , V. Stolyarov , R. Stompor , R. Sudiwala , R. Sunyaev , J. -F. Sygnet , J. A. Tauber , C. Thum , J. -P. Torre , F. Touze , M. Tristram , F. Van Leeuwen , L. Vibert , D. Vibert , L. A. Wade , B. D. Wandelt , S. D. M. White , H. Wiesemeyer , A. Woodcraft , V. Yurchenko , D. Yvon , A. Zacchei

We present weak lensing shear catalogues for 139 square degrees of data taken during the Science Verification (SV) time for the new Dark Energy Camera (DECam) being used for the Dark Energy Survey (DES). We describe our object selection,…

We present angular diameter measurements obtained by measuring the position of Baryon Acoustic Oscillations (BAO) in an optimised sample of galaxies from the first three years of Dark Energy Survey data (DES Y3). The sample consists of 7…

Cosmology and Nongalactic Astrophysics · Physics 2022-03-21 DES Collaboration , T. M. C. Abbott , M. Aguena , S. Allam , F. Andrade-Oliveira , J. Asorey , S. Avila , G. M. Bernstein , E. Bertin , A. Brandao-Souza , D. Brooks , D. L. Burke , J. Calcino , H. Camacho , A. Carnero Rosell , D. Carollo , M. Carrasco Kind , J. Carretero , F. J. Castander , R. Cawthon , K. C. Chan , A. Choi , C. Conselice , M. Costanzi , M. Crocce , L. N. da Costa , M. E. S. Pereira , T. M. Davis , J. De Vicente , S. Desai , H. T. Diehl , P. Doel , K. Eckert , J. Elvin-Poole , S. Everett , A. E. Evrard , X. Fang , I. Ferrero , A. Ferté , B. Flaugher , P. Fosalba , J. García-Bellido , E. Gaztanaga , D. W. Gerdes , T. Giannantonio , K. Glazebrook , D. Gomes , D. Gruen , R. A. Gruendl , J. Gschwend , G. Gutierrez , S. R. Hinton , D. L. Hollowood , K. Honscheid , D. Huterer , B. Jain , D. J. James , T. Jeltema , N. Kokron , E. Krause , K. Kuehn , O. Lahav , G. F. Lewis , C. Lidman , M. Lima , H. Lin , M. A. G. Maia , U. Malik , P. Martini , P. Melchior , J. Mena-Fernández , F. Menanteau , R. Miquel , J. J. Mohr , R. Morgan , J. Muir , J. Myles , A. Möller , A. Palmese , F. Paz-Chinchón , W. J. Percival , A. Pieres , A. A. Plazas Malagón , A. Porredon , J. Prat , M. Rodriguez-Monroy , A. K. Romer , A. Roodman , R. Rosenfeld , A. J. Ross , E. Sanchez , D. Sanchez Cid , V. Scarpine , S. Serrano , I. Sevilla-Noarbe , E. Sheldon , M. Smith , M. Soares-Santos , E. Suchyta , M. E. C. Swanson , G. Tarle , D. Thomas , C. To , M. A. Troxel , B. E. Tucker , D. L. Tucker , I. Tutusaus , S. A. Uddin , T. N. Varga , J. Weller , R. D. Wilkinson

The SXI telescope is one of the three instruments on board EXIST, a multiwavelength observatory in charge of performing a global survey of the sky in hard X-rays searching for Supermassive Black Holes. One of the primary objectives of EXIST…

Instrumentation and Methods for Astrophysics · Physics 2015-05-14 L. Natalucci , A. Bazzano , S. Campana , P. Caraveo , R. Della Ceca , J. E. Grindlay , F. Panessa , G. Pareschi , B. Ramsey , G. Tagliaferri , P. Ubertini , G. Villa

The VLTI Spectro Imager (VSI) was proposed as a second-generation instrument of the Very Large Telescope Interferometer providing the ESO community with spectrally-resolved, near-infrared images at angular resolutions down to 1.1…

The Strontium Iodide Radiation Instrument (SIRI) is a single detector, gamma-ray spectrometer designed to space-qualify the new scintillation detector material europium-doped strontium iodide (SrI2:Eu) and new silicon photomultiplier (SiPM)…

Instrumentation and Methods for Astrophysics · Physics 2019-07-29 Lee J. Mitchell , Bernard F. Phlips , J. Eric Grove , Theodore Finne , Mary Johnson-Rambert , W. Neil Johnson

We recommend a conceptual design study for a spectroscopic facility in the southern hemisphere comprising a large diameter telescope, fiber system, and spectrographs collectively optimized for massively-multiplexed spectroscopy. As a…

The latest Baryon Acoustic Oscillation (BAO) measurements from the Dark Energy Spectroscopic Instrument (DESI) collaboration, when combined with Planck satellite Cosmic Microwave Background (CMB) data and Type Ia Supernovae, suggest a…

Cosmology and Nongalactic Astrophysics · Physics 2025-07-09 William Giarè

The Subaru Prime Focus Spectrograph (PFS) is a massively-multiplexed fiber-fed optical and near-infrared 3-arm spectrograph (N_fiber=2400, 380<lambda<1260nm, 1.3 degree diameter FoV), offering unique opportunities in survey astronomy. Here…