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Related papers: The Microwave Anisotropy Probe (MAP) Mission

200 papers

We study the angular distribution of temperature fluctuations in the cosmic microwave background (CMB) to probe the statistical isotropy of the universe by using precise full-sky CMB data with a model-independent approach. We investigated…

Cosmology and Nongalactic Astrophysics · Physics 2024-02-01 C. E. Kester , A. Bernui , W. S. Hipólito-Ricaldi

In cosmic microwave background (CMB) experiments, foreground-cleaned temperature maps are still contaminated by the residual dipole due to uncertainties of the Doppler dipole direction and microwave radiometer sidelobe. To obtain reliable…

Cosmology and Nongalactic Astrophysics · Physics 2013-01-16 Hao Liu , Ti-Pei Li

We present cosmological parameter constraints based on the final nine-year WMAP data, in conjunction with additional cosmological data sets. The WMAP data alone, and in combination, continue to be remarkably well fit by a six-parameter LCDM…

The anisotropy of the cosmic microwave background radiation contains information about the contents and history of the universe. We report new limits on cosmological parameters derived from the angular power spectrum measured in the first…

We introduce and study the distribution of an estimator for the normalized bispectrum of the Cosmic Microwave Background (CMB) anisotropy. We use it to construct a goodness of fit statistic to test the coadded 53 and 90 GHz COBE-DMR 4 year…

Astrophysics · Physics 2009-10-30 Pedro G. Ferreira , Joao Magueijo , Krzysztof M. Górski

We forecast the scientific capabilities to improve our understanding of cosmic inflation of CORE, a proposed CMB space satellite submitted in response to the ESA fifth call for a medium-size mission opportunity. The CORE satellite will map…

Cosmology and Nongalactic Astrophysics · Physics 2018-04-25 CORE Collaboration , Fabio Finelli , Martin Bucher , Ana Achúcarro , Mario Ballardini , Nicola Bartolo , Daniel Baumann , Sébastien Clesse , Josquin Errard , Will Handley , Mark Hindmarsh , Kimmo Kiiveri , Martin Kunz , Anthony Lasenby , Michele Liguori , Daniela Paoletti , Christophe Ringeval , Jussi Väliviita , Bartjan van Tent , Vincent Vennin , Rupert Allison , Frederico Arroja , Marc Ashdown , A. J. Banday , Ranajoy Banerji , James G. Bartlett , Soumen Basak , Jochem Baselmans , Paolo de Bernardis , Marco Bersanelli , Anna Bonaldi , Julian Borril , François R. Bouchet , François Boulanger , Thejs Brinckmann , Carlo Burigana , Alessandro Buzzelli , Zhen-Yi Cai , Martino Calvo , Carla Sofia Carvalho , Gabriella Castellano , Anthony Challinor , Jens Chluba , Ivan Colantoni , Martin Crook , Giuseppe D'Alessandro , Guido D'Amico , Jacques Delabrouille , Vincent Desjacques , Gianfranco De Zotti , Jose Maria Diego , Eleonora Di Valentino , Stephen Feeney , James R. Fergusson , Raul Fernandez-Cobos , Simone Ferraro , Francesco Forastieri , Silvia Galli , Juan García-Bellido , Giancarlo de Gasperis , Ricardo T. Génova-Santos , Martina Gerbino , Joaquin González-Nuevo , Sebastian Grandis , Josh Greenslade , Steffen Hagstotz , Shaul Hanany , Dhiraj K. Hazra , Carlos Hernández-Monteagudo , Carlos Hervias-Caimapo , Matthew Hills , Eric Hivon , Bin Hu , Ted Kisner , Thomas Kitching , Ely D. Kovetz , Hannu Kurki-Suonio , Luca Lamagna , Massimiliano Lattanzi , Julien Lesgourgues , Antony Lewis , Valtteri Lindholm , Joanes Lizarraga , Marcos López-Caniego , Gemma Luzzi , Bruno Maffei , Nazzareno Mandolesi , Enrique Martínez-González , Carlos J. A. P. Martins , Silvia Masi , Darragh McCarthy , Sabino Matarrese , Alessandro Melchiorri , Jean-Baptiste Melin , Diego Molinari , Alessandro Monfardini , Paolo Natoli , Mattia Negrello , Alessio Notari , Filippo Oppizzi , Alessandro Paiella , Enrico Pajer , Guillaume Patanchon , Subodh P. Patil , Michael Piat , Giampaolo Pisano , Linda Polastri , Gianluca Polenta , Agnieszka Pollo , Vivian Poulin , Miguel Quartin , Andrea Ravenni , Mathieu Remazeilles , Alessandro Renzi , Diederik Roest , Matthieu Roman , Jose Alberto Rubiño-Martin , Laura Salvati , Alexei A. Starobinsky , Andrea Tartari , Gianmassimo Tasinato , Maurizio Tomasi , Jesús Torrado , Neil Trappe , Tiziana Trombetti , Carole Tucker , Marco Tucci , Jon Urrestilla , Rien van de Weygaert , Patricio Vielva , Nicola Vittorio , Karl Young

Breakdown of rotational invariance of the primordial power spectrum manifests in the statistical anisotropy of the observed Cosmic Microwave Background (CMB) radiation. Hemispherical power asymmetry in the CMB may be caused due to a dipolar…

Cosmology and Nongalactic Astrophysics · Physics 2023-05-23 Md Ishaque Khan , Rajib Saha

Since the discovery of the Cosmic Microwave Background (CMB) in 1965, characterization of the CMB anisotropy angular power spectrum has become somewhat of a holy grail for experimental cosmology. Because CMB anisotropy measurements are…

Astrophysics · Physics 2017-08-23 A. D. Miller

The measurements of CMB anisotropy have opened up a window for probing the global topology of the universe on length scales comparable to and beyond the Hubble radius. We have developed a new method for calculating the CMB anisotropy in…

Astrophysics · Physics 2007-05-23 Tarun Souradeep , Dmitry Pogosyan , J. Richard Bond

The primary results of most observations of cosmic microwave background (CMB) anisotropy are estimates of the angular power spectrum averaged through some broad band, called band-powers. These estimates are in turn what are used to produce…

Astrophysics · Physics 2016-08-25 Lloyd Knox

The statistical expectation values of the temperature fluctuations of cosmic microwave background (CMB) are assumed to be preserved under rotations of the sky. This assumption of {\em statistical isotropy} (SI) of the CMB anisotropy should…

Astrophysics · Physics 2009-11-10 Amir Hajian , Tarun Souradeep

We present a simple, yet accurate approximation for calculating the cosmic microwave background anisotropy power spectrum in adiabatic models. It consists of solving for the evolution of a two-fluid model until the epoch of recombination…

Astrophysics · Physics 2009-10-22 Uros Seljak

We have refined the analysis of the data from the FIRAS (Far InfraRed Absolute Spectrophotometer) on board the COBE (COsmic Background Explorer). The FIRAS measures the difference between the cosmic microwave background and a precise…

Astrophysics · Physics 2009-10-28 D. J. Fixsen , E. S. Cheng , J. M. Gales , J. C. Mather , R. A. Shafer , E. L. Wright

Polarization results from the Cosmic Anisotropy Polarization MAPper (CAPMAP) experiment are reported. These are based upon 433 hours, after cuts, observing a 2 square degree patch around the North Celestial Pole (NCP) with four 90 GHz…

The Standard Inflationary model predicts an isotropic distribution of the Cosmic Microwave Background temperature fluctuations. Detection of deviations from statistical isotropy would call for a revision of the physics of the early…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 Laura Cayon

In this thesis we investigate several aspects related to the theory of fluctuations in the Cosmic Microwave Background. We develop a new algorithm to calculate the angular power spectrum of the anisotropies which is two orders of magnitude…

Astrophysics · Physics 2007-05-23 Matias Zaldarriaga

This paper reports a summary of the contents contents of six hours of lectures on the CMB anisotropy experiments given at the Strasbourg NATO school on the CMB and cosmology. (Its companion paper, astro-ph/9705101 reports the lectures on…

Astrophysics · Physics 2007-05-23 George F. Smoot

The breakdown of statistical homogeneity and isotropy of cosmic perturbations is a generic feature of ultra large scale structure of the cosmos, in particular, of non trivial cosmic topology. The statistical isotropy (SI) of the Cosmic…

Astrophysics · Physics 2008-11-26 Tarun Souradeep , Amir Hajian

The theoretical basis for the prediction of anisotropies in the cosmic microwave background is very well developed. Very low amplitude density and temperature perturbations produce small gravitational effects, leading to an anisotropy that…

Astrophysics · Physics 2007-05-23 E. L. Wright

We extend the analysis of the MAXIMA-1 cosmic microwave background (CMB) data to smaller angular scales. MAXIMA, a bolometric balloon experiment, mapped a 124 deg$^2$ region of the sky with 10\arcmin resolution at frequencies of 150, 240…