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Related papers: Mirage: a new iterative Map-Making code for CMB ex…

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We report an improved technique for diffuse foreground minimization from Cosmic Microwave Background (CMB) maps using a new multi-phase iterative internal-linear-combination (ILC) approach in harmonic space. The new procedure consists of…

Cosmology and Nongalactic Astrophysics · Physics 2017-09-18 Vipin Sudevan , Pavan K. Aluri , Sarvesh Kumar Yadav , Rajib Saha , Tarun Souradeep

HEALPix -- the Hierarchical Equal Area iso-Latitude Pixelization -- is a versatile data structure with an associated library of computational algorithms and visualization software that supports fast scientific applications executable…

Astrophysics · Physics 2011-05-05 K. M. Gorski , E. Hivon , A. J. Banday , B. D. Wandelt , F. K. Hansen , M. Reinecke , M. Bartelman

Szapudi et al (2001) introduced the method of estimating angular power spectrum of the CMB sky via heuristically weighted correlation functions. Part of the new technique is that all (co)variances are evaluated by massive Monte Carlo…

Astrophysics · Physics 2007-05-23 I. Szapudi , S. Prunet , S. Colombi

This paper is one of a series describing the performance and accuracy of map-making codes as assessed by the Planck CTP working group. We compare the performance of multiple codes written by different groups for making polarized maps from…

Large angular scale surveys in the absence of atmosphere are essential for measuring the primordial $B$-mode power spectrum of the Cosmic Microwave Background (CMB). Since this proposed measurement is about three to four orders of magnitude…

Instrumentation and Methods for Astrophysics · Physics 2025-03-05 Y. Takase , L. Vacher , H. Ishino , G. Patanchon , L. Montier , S. L. Stever , K. Ishizaka , Y. Nagano , W. Wang , J. Aumont , K. Aizawa , A. Anand , C. Baccigalupi , M. Ballardini , A. J. Banday , R. B. Barreiro , N. Bartolo , S. Basak , M. Bersanelli , M. Bortolami , T. Brinckmann , E. Calabrese , P. Campeti , E. Carinos , A. Carones , F. J. Casas , K. Cheung , L. Clermont , F. Columbro , A. Coppolecchia , F. Cuttaia , P. de Bernardis , T. de Haan , E. de la Hoz , S. Della Torre , P. Diego-Palazuelos , G. D'Alessandro , H. K. Eriksen , J. Errard , F. Finelli , U. Fuskeland , G. Galloni , M. Galloway , M. Gervasi , T. Ghigna , S. Giardiello , C. Gimeno-Amo , E. Gjerløw , R. González González , A. Gruppuso , M. Hazumi , S. Henrot-Versillé , L. T. Hergt , K. Ikuma , K. Kohri , L. Lamagna , M. Lattanzi , C. Leloup , M. Lembo , F. Levrier , A. I. Lonappan , M. López-Caniego , G. Luzzi , B. Maffei , E. Martínez-González , S. Masi , S. Matarrese , F. T. Matsuda , T. Matsumura , S. Micheli , M. Migliaccio , M. Monelli , G. Morgante , B. Mot , R. Nagata , T. Namikawa , A. Novelli , K. Odagiri , S. Oguri , R. Omae , L. Pagano , D. Paoletti , F. Piacentini , M. Pinchera , G. Polenta , L. Porcelli , N. Raffuzzi , M. Remazeilles , A. Ritacco , M. Ruiz-Granda , Y. Sakurai , D. Scott , Y. Sekimoto , M. Shiraishi , G. Signorelli , R. M. Sullivan , H. Takakura , L. Terenzi , M. Tomasi , M. Tristram , B. van Tent , P. Vielva , I. K. Wehus , B. Westbrook , G. Weymann-Despres , E. J. Wollack , M. Zannoni , Y. Zhou

We present a new approach to component separation in multifrequency CMB experiments by formulating the problem as that of partitioning the sky into pixel clusters such that within each pixel cluster the foregrounds have similar spectrum,…

Cosmology and Nongalactic Astrophysics · Physics 2019-03-18 Rishi Khatri

Upcoming ground-based cosmic microwave background experiments will provide CMB maps with high sensitivity and resolution that can be used for high fidelity lensing reconstruction. However, the sky coverage will be incomplete and the noise…

Cosmology and Nongalactic Astrophysics · Physics 2019-12-11 Mark Mirmelstein , Julien Carron , Antony Lewis

We perform an independent foreground analysis of the WMAP maps to produce a cleaned CMB map (available online) useful for cross-correlation with, e.g., galaxy and X-ray maps. We use a variant of the Tegmark & Efstathiou (1996) technique…

Astrophysics · Physics 2009-10-07 Max Tegmark , Angelica de Oliveira-Costa , Andrew Hamilton

This work describes Cosmic Microwave Background (CMB) data analysis algorithms and their implementations, developed to produce a pixelized map of the sky and a corresponding pixel-pixel noise correlation matrix from time ordered data for a…

Precise measurement of the angular power spectrum of the Cosmic Microwave Background (CMB) temperature and polarization anisotropy can tightly constrain many cosmological models and parameters. However, accurate measurements can only be…

Cosmology and Nongalactic Astrophysics · Physics 2015-03-17 S. Mitra , G. Rocha , K. M. Górski , K. M. Huffenberger , H. K. Eriksen , M. A. J. Ashdown , C. R. Lawrence

We describe a new map-making code for cosmic microwave background (CMB) observations. It implements fast algorithms for convolution and transpose convolution of two functions on the sphere (Wandelt & G\'{o}rski 2001). Our code can account…

Astrophysics · Physics 2009-11-10 Charmaine Armitage , Benjamin D. Wandelt

Future cosmic microwave background (CMB) polarisation experiments aim to measure an unprecedentedly small signal - the primordial gravity wave component of the polarisation field B-mode. To achieve this, they will analyse huge datasets,…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 D. Sutton , J. A. Zuntz , P. G. Ferreira , M. L. Brown , H. K. Eriksen , B. R. Johnson , A. Kusaka , S. K. Naess , I. K. Wehus

We present an augmented version of our dual messenger algorithm for spin field reconstruction on the sphere, while accounting for highly non-trivial and realistic noise models such as modulated correlated noise. We also describe an…

Cosmology and Nongalactic Astrophysics · Physics 2019-10-01 Doogesh Kodi Ramanah , Guilhem Lavaux , Benjamin D. Wandelt

Planck has produced detailed all-sky observations over nine frequency bands between 30 and 857 GHz. These observations allow robust reconstruction of the primordial cosmic microwave background (CMB) temperature fluctuations over nearly the…

Cosmology and Nongalactic Astrophysics · Physics 2014-10-29 Planck Collaboration , P. A. R. Ade , N. Aghanim , C. Armitage-Caplan , M. Arnaud , M. Ashdown , F. Atrio-Barandela , J. Aumont , C. Baccigalupi , A. J. Banday , R. B. Barreiro , J. G. Bartlett , E. Battaner , K. Benabed , A. Benoît , A. Benoit-Lévy , J. -P. Bernard , M. Bersanelli , P. Bielewicz , J. Bobin , J. J. Bock , A. Bonaldi , L. Bonavera , J. R. Bond , J. Borrill , F. R. Bouchet , F. Boulanger , M. Bridges , M. Bucher , C. Burigana , R. C. Butler , J. -F. Cardoso , A. Catalano , A. Challinor , A. Chamballu , R. -R. Chary , X. Chen , L. -Y Chiang , H. C. Chiang , P. R. Christensen , S. Church , D. L. Clements , S. Colombi , L. P. L. Colombo , 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 , J. -M. Delouis , F. -X. Désert , C. Dickinson , J. M. Diego , H. Dole , S. Donzelli , O. Doré , M. Douspis , J. Dunkley , X. Dupac , G. Efstathiou , T. A. Enßlin , H. K. Eriksen , E. Falgarone , F. Finelli , O. Forni , M. Frailis , A. A. Fraisse , E. Franceschi , S. Galeotta , K. Ganga , M. Giard , G. Giardino , Y. Giraud-Héraud , J. González-Nuevo , K. M. Górski , S. Gratton , A. Gregorio , A. Gruppuso , F. K. Hansen , D. Hanson , D. Harrison , G. Helou , S. Henrot-Versillé , C. Hernández-Monteagudo , D. Herranz , S. R. Hildebrandt , E. Hivon , M. Hobson , W. A. Holmes , A. Hornstrup , W. Hovest , G. Huey , K. M. Huffenberger , T. R. Jaffe , A. H. Jaffe , J. Jewell , W. C. Jones , M. Juvela , E. Keihänen , R. Keskitalo , T. S. Kisner , R. Kneissl , J. Knoche , L. Knox , M. Kunz , H. Kurki-Suonio , G. Lagache , A. Lähteenmäki , J. -M. Lamarre , A. Lasenby , R. J. Laureijs , C. R. Lawrence , M. Le Jeune , S. Leach , J. P. Leahy , R. Leonardi , J. Lesgourgues , M. Liguori , P. B. Lilje , M. Linden-Vørnle , M. López-Caniego , P. M. Lubin , J. F. Macías-Pérez , B. Maffei , D. Maino , N. Mandolesi , A. Marcos-Caballero , M. Maris , D. J. Marshall , P. G. Martin , E. Martínez-González , S. Masi , S. Matarrese , F. Matthai , P. Mazzotta , P. R. Meinhold , A. Melchiorri , L. Mendes , A. Mennella , M. Migliaccio , K. Mikkelsen , S. Mitra , M. -A. Miville-Deschênes , A. Moneti , L. Montier , G. Morgante , D. Mortlock , A. Moss , D. Munshi , P. Naselsky , F. Nati , P. Natoli , C. B. Netterfield , H. U. Nørgaard-Nielsen , F. Noviello , D. Novikov , I. Novikov , I. J. O'Dwyer , S. Osborne , C. A. Oxborrow , F. Paci , L. Pagano , F. Pajot , R. Paladini , D. Paoletti , B. Partridge , 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 , P. Platania , E. Pointecouteau , G. Polenta , N. Ponthieu , L. Popa , T. Poutanen , G. W. Pratt , G. Prézeau , S. Prunet , J. -L. Puget , J. P. Rachen , W. T. Reach , R. Rebolo , M. Reinecke , M. Remazeilles , C. Renault , A. Renzi , S. Ricciardi , T. Riller , I. Ristorcelli , G. Rocha , C. Rosset , G. Roudier , M. Rowan-Robinson , J. A. Rubiño-Martín , B. Rusholme , E. Salerno , M. Sandri , D. Santos , G. Savini , F. Schiavon , D. Scott , M. D. Seiffert , E. P. S. Shellard , L. D. Spencer , J. -L. Starck , R. Stompor , R. Sudiwala , R. Sunyaev , F. Sureau , D. Sutton , A. -S. Suur-Uski , J. -F. Sygnet , J. A. Tauber , D. Tavagnacco , L. Terenzi , L. Toffolatti , M. Tomasi , M. Tristram , M. Tucci , J. Tuovinen , M. Türler , G. Umana , L. Valenziano , J. Valiviita , B. Van Tent , J. Varis , M. Viel , P. Vielva , F. Villa , N. Vittorio , L. A. Wade , B. D. Wandelt , I. K. Wehus , A. Wilkinson , J. -Q. Xia , D. Yvon , A. Zacchei , A. Zonca

The PLANCK mission is the most sensitive all-sky CMB experiment currently planned. The High Frequency Instrument (HFI) will be especially suited for observing clusters of galaxies by their thermal Sunyaev-Zel'dovich (SZ) effect. In order to…

Estimation of the sky signal from sequences of time ordered data is one of the key steps in Cosmic Microwave Background (CMB) data analysis, commonly referred to as the map-making problem. Some of the most popular and general methods…

Cosmology and Nongalactic Astrophysics · Physics 2014-12-16 Mikolaj Szydlarski , Laura Grigori , Radek Stompor

We present an analysis of the main systematic effects that could impact the measurement of CMB polarization with the proposed CORE space mission. We employ timeline-to-map simulations to verify that the CORE instrumental set-up and scanning…

Cosmology and Nongalactic Astrophysics · Physics 2019-08-13 P. Natoli , M. Ashdown , R. Banerji , J. Borrill , A. Buzzelli , G. de Gasperis , J. Delabrouille , E. Hivon , D. Molinari , G. Patanchon , L. Polastri , M. Tomasi , F. R. Bouchet , S. Henrot-Versillé , D. T. Hoang , R. Keskitalo , K. Kiiveri , T. Kisner , V. Lindholm , D. McCarthy , F. Piacentini , O. Perdereau , G. Polenta , M. Tristram , A. Achucarro , P. Ade , R. Allison , C. Baccigalupi , M. Ballardini , A. J. Banday , J. Bartlett , N. Bartolo , S. Basak , J. Baselmans , D. Baumann , M. Bersanelli , A. Bonaldi , M. Bonato , F. Boulanger , T. Brinckmann , M. Bucher , C. Burigana , Z. -Y. Cai , M. Calvo , C. -S. Carvalho , G. Castellano , A. Challinor , J. Chluba , S. Clesse , I. Colantoni , A. Coppolecchia , M. Crook , G. D'Alessandro , P. de Bernardis , G. De Zotti , E. Di Valentino , J. -M. Diego , J. Errard , S. Feeney , R. Fernandez-Cobos , F. Finelli , F. Forastieri , S. Galli , R. Genova-Santos , M. Gerbino , J. Gonzalez-Nuevo , S. Grandis , J. Greenslade , A. Gruppuso , S. Hagstotz , S. Hanany , W. Handley , C. Hernandez-Monteagudo , C. Hervias-Caimapo , M. Hills , E. Keihänen , T. Kitching , M. Kunz , H. Kurki-Suonio , L. Lamagna , A. Lasenby , M. Lattanzi , J. Lesgourgues , A. Lewis , M. Liguori , M. López-Caniego , G. Luzzi , B. Maffei , N. Mandolesi , E. Martinez-Gonzalez , C. J. A. P. Martins , S. Masi , A. Melchiorri , J. -B. Melin , M. Migliaccio , A. Monfardini , M. Negrello , A. Notari , L. Pagano , A. Paiella , D. Paoletti , M. Piat , G. Pisano , A. Pollo , V. Poulin , M. Quartin , M. Remazeilles , M. Roman , G. Rossi , J. -A. Rubino-Martin , L. Salvati , G. Signorelli , A. Tartari , D. Tramonte , N. Trappe , T. Trombetti , C. Tucker , J. Valiviita , R. Van de Weijgaert , B. van Tent , V. Vennin , P. Vielva , N. Vittorio , C. Wallis , K. Young , M. Zannoni

Inference in cosmology often starts with noisy observations of random fields on the celestial sphere, such as maps of the microwave background radiation, continuous maps of cosmic structure in different wavelengths, or maps of point tracers…

Cosmology and Nongalactic Astrophysics · Physics 2026-02-06 E. Sellentin , A. Loureiro , L. Whiteway , J. S. Lafaurie , S. T. Balan , M. Olamaie , A. H. Jaffe , A. F. Heavens

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

We describe here an iterative method for jointly estimating the noise power spectrum from a scanning experiment's time-ordered data, together with the maximum-likelihood map. We test the robustness of this method on simulated datasets with…

Astrophysics · Physics 2007-05-23 S. Prunet , C. B. Netterfield , E. Hivon , B. P. Crill