相关论文: Data Reduction and Analysis of the Python V Cosmic…

A measurement of secondary cosmic microwave background anisotropies with two years of South Pole Telescope observations

We present the first three-frequency South Pole Telescope (SPT) cosmic microwave background (CMB) power spectra. The band powers presented here cover angular scales 2000 < ell < 9400 in frequency bands centered at 95, 150, and 220 GHz. At…

宇宙学与河外天体物理 · 物理学 2012-07-30 C. L. Reichardt , L. Shaw , O. Zahn , K. A. Aird , B. A. Benson , L. E. Bleem , J. E. Carlstrom , C. L. Chang , H. M. Cho , T. M. Crawford , A. T. Crites , T. de Haan , M. A. Dobbs , J. Dudley , E. M. George , N. W. Halverson , G. P. Holder , W. L. Holzapfel , S. Hoover , Z. Hou , J. D. Hrubes , M. Joy , R. Keisler , L. Knox , A. T. Lee , E. M. Leitch , M. Lueker , D. Luong-Van , J. J. McMahon , J. Mehl , S. S. Meyer , M. Millea , J. J. Mohr , T. E. Montroy , T. Natoli , S. Padin , T. Plagge , C. Pryke , J. E. Ruhl , K. K. Schaffer , E. Shirokoff , H. G. Spieler , Z. Staniszewski , A. A. Stark , K. Story , A. van Engelen , K. Vanderlinde , J. D. Vieira , R. Williamson

Implications for cosmology from Ground-based Cosmic Microwave Background observations

Cosmic Microwave Background (CMB) anisotropy encodes a lot of information about our Universe. In this paper we take the ground-based CMB observations (GCMB), including the South Pole Telescope (SPT), SPTpol and the Atacama Cosmology…

宇宙学与河外天体物理 · 物理学 2020-07-01 Ke Wang , Qing-Guo Huang

Power Asymmetry in Cosmic Microwave Background Fluctuations from Full Sky to Sub-degree Scales: Is the Universe Isotropic?

We repeat and extend the analysis of Eriksen et al 2004 and Hansen et al 2004 testing the isotropy of the Cosmic Microwave Background (CMB) fluctuations. We find that the hemispherical power asymmetry previously reported for the largest…

天体物理学 · 物理学 2014-11-18 F. K. Hansen , A. J. Banday , K. M. Gorski , H. K. Eriksen , P. B. Lilje

Millimetric Ground Based Observation of CMBR Anisotropy at $\delta =+28^{\lowercase{o}}$

Results from the third campaign of a ground-based multi-band observation of the millimeter emission of the sky from Tenerife (Canary Islands) are presented. The instrument consists of a 0.45 meter diameter off-axis telescope equipped with a…

天体物理学 · 物理学 2007-05-23 G. Romeo , S. Ali , B. Femenia , M. Limon , L. Piccirillo , R. Rebolo , R. Schaefer

MAXIMA: Observations of CMB Anisotropy

This document describes the Millimeter Anisotropy eXperiment IMaging Array (MAXIMA), a balloon-borne experiment measuring the temperature anisotropy of the Cosmic Microwave Background (CMB) on angular scales of 10 arcminutes to 5 degrees.…

天体物理学 · 物理学 2011-11-09 Bahman Rabii

Anisotropies of the Cosmic Microwave Background

We review the present status of Cosmic Microwave Background (CMB) anisotropy observations and discuss the main related astrophysical issues, instrumental effects and data analysis techniques. We summarise the balloon-borne and ground-based…

天体物理学 · 物理学 2007-05-23 M. Bersanelli , D. Maino , A. Mennella

The Anisotropy of the Microwave Background to l = 3500: Mosaic Observations with the Cosmic Background Imager

Using the Cosmic Background Imager, a 13-element interferometer array operating in the 26-36 GHz frequency band, we have observed 40 sq deg of sky in three pairs of fields, each ~ 145 x 165 arcmin, using overlapping pointings (mosaicing).…

天体物理学 · 物理学 2009-09-29 T. J. Pearson , B. S. Mason , A. C. S. Readhead , M. C. Shepherd , J. L. Sievers , P. S. Udomprasert , J. K. Cartwright , A. J. Farmer , S. Padin , S. T. Myers , J. R. Bond , C. R. Contaldi , U. -L. Pen , S. Prunet , D. Pogosyan , J. E. Carlstrom , J. Kovac , E. M. Leitch , C. Pryke , N. W. Halverson , W. L. Holzapfel , P. Altamirano , L. Bronfman , S. Casassus , J. May , M. Joy

Cosmic Microwave Background Anisotropy with Cosine-Type Quintessence

We study the Cosmic Microwave Background (CMB) anisotropies produced by cosine-type quintessence models. In our analysis, effects of the adiabatic and isocurvature fluctuations are both taken into account. For purely adiabatic fluctuations…

天体物理学 · 物理学 2009-11-06 Masahiro Kawasaki , Takeo Moroi , Tomo Takahashi

Detection of Polarization in the Cosmic Microwave Background using DASI

We report the detection of polarized anisotropy in the Cosmic Microwave Background radiation with the Degree Angular Scale Interferometer (DASI), located at the Amundsen-Scott South Pole research station. Observations in all four Stokes…

天体物理学 · 物理学 2011-05-05 J. Kovac , E. M. Leitch , C. Pryke , J. E. Carlstrom , N. W. Halverson , W. L. Holzapfel

Cosmic Microwave Background Anisotropy in models with Quintessence

We study the Cosmic Microwave Background (CMB) anisotropies produced by cosine-type quintessence models. In our analysis, effects of the adiabatic and isocurvature fluctuations are both taken into account. For purely adiabatic fluctuations…

天体物理学 · 物理学 2007-05-23 Tomo Takahashi

Planck 2015 results. XVI. Isotropy and statistics of the CMB

We test the statistical isotropy and Gaussianity of the cosmic microwave background (CMB) anisotropies using observations made by the Planck satellite. Our results are based mainly on the full Planck mission for temperature, but also…

宇宙学与河外天体物理 · 物理学 2016-09-21 Planck Collaboration , P. A. R. Ade , N. Aghanim , Y. Akrami , P. K. Aluri , M. Arnaud , M. Ashdown , J. Aumont , C. Baccigalupi , A. J. Banday , R. B. Barreiro , N. Bartolo , S. Basak , E. Battaner , K. Benabed , A. Benoît , A. Benoit-Lévy , J. -P. Bernard , M. Bersanelli , P. Bielewicz , J. J. Bock , A. Bonaldi , L. Bonavera , J. R. Bond , J. Borrill , F. R. Bouchet , F. Boulanger , M. Bucher , C. Burigana , R. C. Butler , E. Calabrese , J. -F. Cardoso , B. Casaponsa , A. Catalano , A. Challinor , A. Chamballu , H. C. Chiang , P. R. Christensen , S. Church , D. L. Clements , S. Colombi , L. P. L. Colombo , C. Combet , D. Contreras , F. Couchot , A. Coulais , B. P. Crill , M. Cruz , A. Curto , F. Cuttaia , L. Danese , R. D. Davies , R. J. Davis , P. de Bernardis , A. de Rosa , G. de Zotti , J. Delabrouille , F. -X. Désert , J. M. Diego , H. Dole , S. Donzelli , O. Doré , M. Douspis , A. Ducout , X. Dupac , G. Efstathiou , F. Elsner , T. A. Enßlin , H. K. Eriksen , Y. Fantaye , J. Fergusson , R. Fernandez-Cobos , F. Finelli , O. Forni , M. Frailis , A. A. Fraisse , E. Franceschi , A. Frejsel , A. Frolov , S. Galeotta , S. Galli , K. Ganga , C. Gauthier , T. Ghosh , M. Giard , Y. Giraud-Héraud , E. Gjerløw , J. González-Nuevo , K. M. Górski , S. Gratton , A. Gregorio , A. Gruppuso , J. E. Gudmundsson , F. K. Hansen , D. Hanson , D. L. Harrison , S. Henrot-Versillé , C. Hernández-Monteagudo , D. Herranz , S. R. Hildebrandt , E. Hivon , M. Hobson , W. A. Holmes , A. Hornstrup , W. Hovest , Z. Huang , K. M. Huffenberger , G. Hurier , A. H. Jaffe , T. R. Jaffe , W. C. Jones , M. Juvela , E. Keihänen , R. Keskitalo , J. Kim , T. S. Kisner , J. Knoche , M. Kunz , H. Kurki-Suonio , G. Lagache , A. Lähteenmäki , J. -M. Lamarre , A. Lasenby , M. Lattanzi , C. R. Lawrence , R. Leonardi , J. Lesgourgues , F. Levrier , M. Liguori , P. B. Lilje , M. Linden-Vørnle , H. Liu , M. López-Caniego , P. M. Lubin , J. F. Macías-Pérez , G. Maggio , D. Maino , N. Mandolesi , A. Mangilli , D. Marinucci , M. Maris , P. G. Martin , E. Martínez-González , S. Masi , S. Matarrese , P. McGehee , P. R. Meinhold , A. Melchiorri , L. Mendes , A. Mennella , M. Migliaccio , K. Mikkelsen , S. Mitra , M. -A. Miville-Deschênes , D. Molinari , A. Moneti , L. Montier , G. Morgante , D. Mortlock , A. Moss , D. Munshi , J. A. Murphy , P. Naselsky , F. Nati , P. Natoli , C. B. Netterfield , H. U. Nørgaard-Nielsen , F. Noviello , D. Novikov , I. Novikov , C. A. Oxborrow , F. Paci , L. Pagano , F. Pajot , N. Pant , D. Paoletti , F. Pasian , G. Patanchon , T. J. Pearson , O. Perdereau , L. Perotto , F. Perrotta , V. Pettorino , F. Piacentini , M. Piat , E. Pierpaoli , D. Pietrobon , S. Plaszczynski , E. Pointecouteau , G. Polenta , L. Popa , G. W. Pratt , G. Prézeau , S. Prunet , J. -L. Puget , J. P. Rachen , R. Rebolo , M. Reinecke , M. Remazeilles , C. Renault , A. Renzi , I. Ristorcelli , G. Rocha , C. Rosset , M. Rossetti , A. Rotti , G. Roudier , J. A. Rubiño-Martín , B. Rusholme , M. Sandri , D. Santos , M. Savelainen , G. Savini , D. Scott , M. D. Seiffert , E. P. S. Shellard , T. Souradeep , L. D. Spencer , V. Stolyarov , R. Stompor , R. Sudiwala , R. Sunyaev , D. Sutton , A. -S. Suur-Uski , J. -F. Sygnet , J. A. Tauber , L. Terenzi , L. Toffolatti , M. Tomasi , M. Tristram , T. Trombetti , M. Tucci , J. Tuovinen , L. Valenziano , J. Valiviita , B. Van Tent , P. Vielva , F. Villa , L. A. Wade , B. D. Wandelt , I. K. Wehus , D. Yvon , A. Zacchei , J. P. Zibin , A. Zonca

Forecasts on Anisotropic Cosmic Birefringence Constraints for CMB Experiment in the Northern Hemisphere

The study of cosmic birefringence through Cosmic Microwave Background (CMB) experiments is a key research area in cosmology and particle physics, providing a critical test for Lorentz and CPT symmetries. This paper focuses on an upcoming…

宇宙学与河外天体物理 · 物理学 2025-04-18 Yiwei Zhong , Hongbo Cai , Si-Yu Li , Yang Liu , Mingzhe Li , Wenjuan Fang

MSAM1-94: Repeated Measurement of Medium-Scale Anisotropy in the Cosmic Microwave Background Radiation

The second flight of the Medium Scale Anisotropy Measurement (MSAM1-94) observed the same field as the first flight (MSAM1-92) to confirm our earlier measurement of cosmic microwave background radiation (CMBR) anisotropy. This instrument…

天体物理学 · 物理学 2009-10-28 E. S. Cheng , D. A. Cottingham , D. J. Fixsen , C. A. Inman , M. S. Kowitt , S. S. Meyer , L. A. Page , J. L. Puchalla , J. E. Ruhl , R. F. Silverberg

Mapping the CMB II: the second flight of the QMAP experiment

We report the results from the second flight of QMAP, an experiment to map the cosmic microwave background near the North Celestial Pole. We present maps of the sky at 31 and 42 GHz as well as a measurement of the angular power spectrum…

天体物理学 · 物理学 2009-10-30 Tom Herbig , Angelica de Oliveira-Costa , Mark Devlin , Amber Miller , Lyman Page , Max Tegmark

First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Angular Power Spectrum

We present the angular power spectrum derived from the first-year Wilkinson Microwave Anisotropy Probe (WMAP) sky maps. We study a variety of power spectrum estimation methods and data combinations and demonstrate that the results are…

天体物理学 · 物理学 2011-05-12 G. Hinshaw , D. N. Spergel , L. Verde , R. S. Hill , S. S. Meyer , C. Barnes , C. L. Bennett , M. Halpern , N. Jarosik , A. Kogut , E. Komatsu , M. Limon , L. Page , G. S. Tucker , J. Weiland , E. Wollack , E. L. Wright

Improved Measurement of the Angular Power Spectrum of Temperature Anisotropy in the CMB from Two New Analyses of BOOMERANG Observations

We report the most complete analysis to date of observations of the Cosmic Microwave Background (CMB) obtained during the 1998 flight of BOOMERANG. We use two quite different methods to determine the angular power spectrum of the CMB in 20…

天体物理学 · 物理学 2009-11-07 J. E. Ruhl , P. A. R. Ade , J. J. Bock , J. R. Bond , J. Borrill , A. Boscaleri , C. R. Contaldi , B. P. Crill , P. de Bernardis , G. De Troia , K. Ganga , M. Giacometti , E. Hivon , V. V. Hristov , A. Iacoangeli , A. H. Jaffe , W. C. Jones , A. E. Lange , S. Masi , P. Mason , P. D. Mauskopf , A. Melchiorri , T. Montroy , C. B. Netterfield , E. Pascale , F. Piacentini , D. Pogosyan , G. Polenta , S. Prunet , G. Romeo

A Measurement of the Medium-Scale Anisotropy in the Cosmic Microwave Background Radiation

Observations from the first flight of the Medium Scale Anisotropy Measurement (MSAM) are analyzed to place limits on Gaussian fluctuations in the Cosmic Microwave Background Radiation (CMBR). This instrument chops a 30\arcmin\ beam in a 3…

天体物理学 · 物理学 2009-10-22 E. S. Cheng , D. A. Cottingham , D. J. Fixsen , C. A. Inman , M. S. Kowitt , S. S. Meyer , L. A. Page , J. L. Puchalla , R. F. Silverberg

Measurement of Arcminute Scale Anisotropy with the BIMA Array

We report the results of our continued study of arcminute scale anisotropy in the Cosmic Microwave Background (CMB) with the Berkeley-Illinois-Maryland Array. The survey consists of ten independent fields selected for low infrared dust…

天体物理学 · 物理学 2009-11-07 K. S. Dawson , W. L. Holzapfel , J. E. Carlstrom , S. J. LaRoque , A. Miller , D. Nagai , M. Joy

Measurement of a Peak in the Cosmic Microwave Background Power Spectrum from the North American test flight of BOOMERANG

We describe a measurement of the angular power spectrum of anisotropies in the Cosmic Microwave Background (CMB) from 0.3 degrees to ~10 degrees from the North American test flight of the BOOMERANG experiment. BOOMERANG is a balloon-borne…

天体物理学 · 物理学 2009-10-31 P. D. Mauskopf , P. A. R. Ade , P. de Bernardis , J. J. Bock , J. Borrill , A. Boscaleri , B. P. Crill , G. DeGasperis , G. De Troia , P. Farese , P. G. Ferreira , K. Ganga , M. Giacometti , S. Hanany , V. V. Hristov , A. Iacoangeli , A. H. Jaffe , A. E. Lange , A. T. Lee , S. Masi , A. Melchiorri , F. Melchiorri , L. Miglio , T. Montroy , C. B. Netterfield , E. Pascale , F. Piacentini , P. L. Richards , G. Romeo , J. E. Ruhl , E. Scannapieco , F. Scaramuzzi , R. Stompor , N. Vittorio

An analytical approach to the CMB anisotropies in a Spatially Closed background

The scalar mode temperature fluctuations of the cosmic microwave background has been derived in a spatially closed universe from two different methods. First, by following the photon trajectory after the last scattering and then from the…

广义相对论与量子宇宙学 · 物理学 2017-09-27 Pedram Niazy , Amir H. Abbassi