相关论文: Possible signature of distant foreground in the Pl…

The CIB-lensing bispectrum: impact on primordial non-Gaussianity and detectability for the Planck mission

We characterize the Cosmic Infrared Background (CIB)-lensing bispectrum which is one of the contributions to the three-point functions of Cosmic Microwave Background (CMB) maps in harmonic space. We show that the CIB-lensing bispectrum has…

宇宙学与河外天体物理 · 物理学 2015-05-27 A. Curto , M. Tucci , M. Kunz , E. Martinez-Gonzalez

Tension between the power spectrum of density perturbations measured on large and small scales

There is a tension between measurements of the amplitude of the power spectrum of density perturbations inferred using the Cosmic Microwave Background (CMB) and directly measured by Large-Scale Structure (LSS) on smaller scales. We show…

宇宙学与河外天体物理 · 物理学 2015-05-20 Richard A. Battye , Tom Charnock , Adam Moss

Planck 2018 results. IV. Diffuse component separation

We present full-sky maps of the cosmic microwave background (CMB) and polarized synchrotron and thermal dust emission, derived from the third set of Planck frequency maps. These products have significantly lower contamination from…

宇宙学与河外天体物理 · 物理学 2020-09-30 Planck Collaboration , Y. Akrami , M. Ashdown , J. Aumont , C. Baccigalupi , M. Ballardini , A. J. Banday , R. B. Barreiro , N. Bartolo , S. Basak , K. Benabed , M. Bersanelli , P. Bielewicz , J. R. Bond , J. Borrill , F. R. Bouchet , F. Boulanger , M. Bucher , C. Burigana , E. Calabrese , J. -F. Cardoso , J. Carron , B. Casaponsa , A. Challinor , L. P. L. Colombo , C. Combet , B. P. Crill , F. Cuttaia , P. de Bernardis , A. de Rosa , G. de Zotti , J. Delabrouille , J. -M. Delouis , E. Di Valentino , C. Dickinson , J. M. Diego , S. Donzelli , O. Doré , A. Ducout , X. Dupac , G. Efstathiou , F. Elsner , T. A. Enßlin , H. K. Eriksen , E. Falgarone , R. Fernandez-Cobos , F. Finelli , F. Forastieri , M. Frailis , A. A. Fraisse , E. Franceschi , A. Frolov , S. Galeotta , S. Galli , K. Ganga , R. T. Génova-Santos , M. Gerbino , T. Ghosh , J. González-Nuevo , K. M. Górski , S. Gratton , A. Gruppuso , J. E. Gudmundsson , W. Handley , F. K. Hansen , G. Helou , D. Herranz , Z. Huang , A. H. Jaffe , A. Karakci , E. Keihänen , R. Keskitalo , K. Kiiveri , J. Kim , T. S. Kisner , N. Krachmalnicoff , M. Kunz , H. Kurki-Suonio , G. Lagache , J. -M. Lamarre , A. Lasenby , M. Lattanzi , C. R. Lawrence , M. Le Jeune , F. Levrier , M. Liguori , P. B. Lilje , V. Lindholm , M. López-Caniego , P. M. Lubin , Y. -Z. Ma , J. F. Macías-Pérez , G. Maggio , D. Maino , N. Mandolesi , A. Mangilli , A. Marcos-Caballero , P. G. Martin , E. Martínez-González , S. Matarrese , N. Mauri , J. D. McEwen , P. R. Meinhold , A. Melchiorri , A. Mennella , M. Migliaccio , M. -A. Miville-Deschênes , D. Molinari , A. Moneti , L. Montier , G. Morgante , P. Natoli , F. Oppizzi , L. Pagano , D. Paoletti , B. Partridge , M. Peel , V. Pettorino , F. Piacentini , G. Polenta , J. -L. Puget , J. P. Rachen , M. Reinecke , M. Remazeilles , A. Renzi , G. Rocha , G. Roudier , J. A. Rubiño-Martín , B. Ruiz-Granados , L. Salvati , M. Sandri , M. Savelainen , D. Scott , D. S. Seljebotn , C. Sirignano , L. D. Spencer , A. -S. Suur-Uski , J. A. Tauber , D. Tavagnacco , M. Tenti , H. Thommesen , L. Toffolatti , M. Tomasi , T. Trombetti , J. Valiviita , B. Van Tent , P. Vielva , F. Villa , N. Vittorio , B. D. Wandelt , I. K. Wehus , A. Zacchei , A. Zonca

Component Separation method for CMB using Convolutional Neural Networks

The aim of this project is to recover the CMB anisotropies maps in temperature and polarized intensity by means of a deep convolutional neural network (CNN) which, after appropiate training, can remove the foregrounds from Planck and…

宇宙学与河外天体物理 · 物理学 2024-05-29 A. Quintana-Estellés , B. Ruiz-Granados , P. Ruiz-Lapuente

Forecasts of CMB lensing reconstruction of AliCPT-1 from the foreground cleaned polarization data

Cosmic microwave background radiation (CMB) observations are unavoidably contaminated by emission from various extra-galactic foregrounds, which must be removed to obtain reliable measurements of the cosmological signal. In this paper, we…

宇宙学与河外天体物理 · 物理学 2023-05-24 Jiakang Han , Bin Hu , Shamik Ghosh , Siyu Li , Jiazheng Dou , Jacques Delabrouille , Jing Jin , Hong Li , Yang Liu , Mathieu Remazeilles , Wen Zhao , Pengjie Zhang , Zheng-Wei Li , Cong-Zhan Liu , Yong-jie Zhang , Chao-Lin Kuo , Xinmin Zhang

The effect of point sources on satellite observations of the cosmic microwave background

We study the effect of extragalactic point sources on satellite observations of the cosmic microwave background (CMB). In order to separate the contributions due to different foreground components, a maximum-entropy method is applied to…

天体物理学 · 物理学 2009-10-31 M. P. Hobson , R. B. Barreiro , L. Toffolatti , A. N. Lasenby , J. L. Sanz , A. W. Jones , F. R. Bouchet

Planck 2015 results. IX. Diffuse component separation: CMB maps

We present foreground-reduced CMB maps derived from the full Planck data set in both temperature and polarization. Compared to the corresponding Planck 2013 temperature sky maps, the total data volume is larger by a factor of 3.2 for…

宇宙学与河外天体物理 · 物理学 2016-09-28 Planck Collaboration , R. Adam , P. A. R. Ade , N. Aghanim , M. Arnaud , M. Ashdown , J. Aumont , C. Baccigalupi , A. J. Banday , R. B. Barreiro , J. G. Bartlett , N. Bartolo , S. Basak , E. Battaner , K. Benabed , A. Benoît , A. Benoit-Lévy , J. -P. Bernard , M. Bersanelli , P. Bielewicz , 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 , G. Castex , A. Catalano , A. Challinor , A. Chamballu , R. -R. Chary , H. C. Chiang , P. R. Christensen , D. L. Clements , S. Colombi , L. P. L. Colombo , C. Combet , F. Couchot , A. Coulais , B. P. Crill , 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 , C. Dickinson , 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 , E. Falgarone , Y. Fantaye , J. Fergusson , F. Finelli , O. Forni , M. Frailis , A. A. Fraisse , E. Franceschi , A. Frejsel , S. Galeotta , S. Galli , K. Ganga , 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 , G. Helou , S. Henrot-Versillé , C. Hernández-Monteagudo , D. Herranz , S. R. Hildebrandt , E. Hivon , M. Hobson , W. A. Holmes , A. Hornstrup , W. Hovest , K. M. Huffenberger , G. Hurier , A. H. Jaffe , T. R. Jaffe , W. C. Jones , M. Juvela , E. Keihänen , R. Keskitalo , T. S. Kisner , R. Kneissl , J. Knoche , N. Krachmalnicoff , M. Kunz , H. Kurki-Suonio , G. Lagache , J. -M. Lamarre , A. Lasenby , M. Lattanzi , C. R. Lawrence , M. Le Jeune , R. Leonardi , J. Lesgourgues , F. Levrier , M. Liguori , P. B. Lilje , M. Linden-Vørnle , M. López-Caniego , P. M. Lubin , J. F. Macías-Pérez , G. Maggio , D. Maino , N. Mandolesi , A. Mangilli , D. J. Marshall , P. G. Martin , E. Martínez-González , S. Masi , S. Matarrese , P. Mazzotta , P. McGehee , P. R. Meinhold , A. Melchiorri , L. Mendes , A. Mennella , M. Migliaccio , 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 , R. Paladini , 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 , G. W. Pratt , G. Prézeau , S. Prunet , J. -L. Puget , J. P. Rachen , B. Racine , W. T. Reach , R. Rebolo , M. Reinecke , M. Remazeilles , C. Renault , A. Renzi , I. Ristorcelli , G. Rocha , C. Rosset , M. Rossetti , 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 , 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 , A. Zonca

Extended Anomalous Foreground Emission in the WMAP 3-Year Data

We study the spectral and morphological characteristics of the diffuse Galactic emission in the WMAP temperature data using a template-based multi-linear regression, and obtain the following results. 1. We confirm previous observations of a…

天体物理学 · 物理学 2009-06-23 Gregory Dobler , Douglas P. Finkbeiner

Limits on Entanglement Effects in the String Landscape from Planck and BICEP/Keck Data

We consider observational limits on a proposed model of the string landscape in inflation. In this scenario, effects from the decoherence of entangled quantum states in long-wavelength modes in the universe result in modifications to the…

宇宙学与河外天体物理 · 物理学 2016-11-08 William H. Kinney

Cross correlations of the CMB Doppler mode and the 21 cm brightness temperature in the presence of a primordial magnetic field

The cross correlation between the CMB Doppler mode and the 21 cm line brightness temperature is calculated in the presence of a stochastic primordial magnetic field. Potential detectability is estimated for Planck 2018 bestfit parameters in…

宇宙学与河外天体物理 · 物理学 2023-08-16 Kerstin E. Kunze

Measurements of the Cross Spectra of the Cosmic Infrared and Microwave Backgrounds from 95 to 1200 GHz

We present measurements of the power spectra of cosmic infrared background (CIB) and cosmic microwave background (CMB) fluctuations in six frequency bands. Maps at the lower three frequency bands, 95, 150, and 220 GHz (3330, 2000, 1360…

宇宙学与河外天体物理 · 物理学 2019-09-04 M. P. Viero , C. L. Reichardt , B. A. Benson , L. E. Bleem , J. Bock , J. E. Carlstrom , C. L. Chang , H-M. Cho , T. M. Crawford , A. T. Crites , T. de Haan , M. A. Dobbs , W. B. Everett , E. M. George , N. W. Halverson , N. L. Harrington , G. Holder , W. L. Holzapfel , Z. Hou , J. D. Hrubes , L. Knox , A. T. Lee , D. Luong-Van , D. P. Marrone , J. J. McMahon , S. S. Meyer , M. Millea , L. M. Mocanu , J. J. Mohr , L. Moncelsi , S. Padin , C. Pryke , J. E. Ruhl , K. K. Schaffer , P. Serra , E. Shirokoff , Z. Staniszewski , A. A. Stark , K. T. Story , K. Vanderlinde , J. D. Vieira , R. Williamson , M. Zemcov

Dark Energy Survey Year 1 Results: tomographic cross-correlations between DES galaxies and CMB lensing from SPT+Planck

We measure the cross-correlation between redMaGiC galaxies selected from the Dark Energy Survey (DES) Year-1 data and gravitational lensing of the cosmic microwave background (CMB) reconstructed from South Pole Telescope (SPT) and Planck…

宇宙学与河外天体物理 · 物理学 2019-08-07 Y. Omori , T. Giannantonio , A. Porredon , E. Baxter , C. Chang , M. Crocce , P. Fosalba , A. Alarcon , N. Banik , J. Blazek , L. E. Bleem , S. L. Bridle , R. Cawthon , A. Choi , R. Chown , T. Crawford , S. Dodelson , A. Drlica-Wagner , T. F. Eifler , J. Elvin-Poole , O. Friedrich , D. Gruen , G. P. Holder , D. Huterer , B. Jain , M. Jarvis , D. Kirk , N. Kokron , E. Krause , N. MacCrann , J. Muir , J. Prat , C. L. Reichardt , A. J. Ross , E. Rozo , E. S. Rykoff , C. Sánchez , L. F. Secco , G. Simard , R. H. Wechsler , J. Zuntz , T. M. C. Abbott , F. B. Abdalla , S. Allam , S. Avila , K. Aylor , B. A. Benson , G. M. Bernstein , E. Bertin , F. Bianchini , D. Brooks , E. Buckley-Geer , D. L. Burke , J. E. Carlstrom , A. Carnero Rosell , M. Carrasco Kind , J. Carretero , F. J. Castander , C. L. Chang , H-M. Cho , A. T. Crites , C. E. Cunha , L. N. da Costa , T. de Haan , C. Davis , J. De Vicente , S. Desai , H. T. Diehl , J. P. Dietrich , M. A. Dobbs , W. B. Everett , P. Doel , J. Estrada , B. Flaugher , J. Frieman , J. García-Bellido , E. Gaztanaga , D. W. Gerdes , E. M. George , R. A. Gruendl , J. Gschwend , G. Gutierrez , N. W. Halverson , N. L. Harrington , W. G. Hartley , D. L. Hollowood , W. L. Holzapfel , K. Honscheid , Z. Hou , B. Hoyle , J. D. Hrubes , D. J. James , T. Jeltema , K. Kuehn , N. Kuropatkin , A. T. Lee , E. M. Leitch , M. Lima , D. Luong-Van , A. Manzotti , D. P. Marrone , J. L. Marshall , J. J. McMahon , P. Melchior , F. Menanteau , S. S. Meyer , C. J. Miller , R. Miquel , L. M. Mocanu , J. J. Mohr , T. Natoli , S. Padin , A. A. Plazas , C. Pryke , A. K. Romer , A. Roodman , J. E. Ruhl , E. Sanchez , V. Scarpine , K. K. Schaffer , M. Schubnell , S. Serrano , I. Sevilla-Noarbe , E. Shirokoff , M. Smith , M. Soares-Santos , F. Sobreira , Z. Staniszewski , A. A. Stark , K. T. Story , E. Suchyta , M. E. C. Swanson , G. Tarle , D. Thomas , M. A. Troxel , K. Vanderlinde , J. D. Vieira , A. R. Walker , W. L. K. Wu , O. Zahn

Detectability of Gravitational Lensing Effect on the Two-point Correlation Function of Hotspots in the CMB maps

We present quantitative investigations of the weak lensing effect on the two-point correlation functions of local maxima (hotspots), $\xipk(\theta)$, in the cosmic microwave background (CMB) maps. The lensing effect depends on the projected…

天体物理学 · 物理学 2009-10-31 Masahiro Takada , Toshifumi Futamase

Evidence of a truncated spectrum in the angular correlation function of the cosmic microwave background

The lack of large-angle correlations in the fluctuations of the cosmic microwave background (CMB) conflicts with predictions of slow-roll inflation. But though probabilities (< 0.24%) for the missing correlations disfavor the conventional…

宇宙学与河外天体物理 · 物理学 2018-03-14 Fulvio Melia , Martin Lopez-Corredoira

Constraints on a Stochastic Background of Primordial Magnetic Fields with WMAP and South Pole Telescope data

We constrain a stochastic background of primordial magnetic fields (PMF) by its contribution to the cosmic microwave background (CMB) anisotropy angular power spectrum with the combination of WMAP 7 year and South Pole Telescope (SPT) data.…

宇宙学与河外天体物理 · 物理学 2013-10-23 Daniela Paoletti , Fabio Finelli

The growth of density perturbations in the last $\sim$10 billion years from tomographic large-scale structure data

In order to investigate the origin of the ongoing tension between the amplitude of matter fluctuations measured by weak lensing experiments at low redshifts and the value inferred from the cosmic microwave background anisotropies, we…

宇宙学与河外天体物理 · 物理学 2021-10-22 Carlos García-García , Jaime Ruiz Zapatero , David Alonso , Emilio Bellini , Pedro G. Ferreira , Eva-Maria Mueller , Andrina Nicola , Pilar Ruiz-Lapuente

Cross-Correlation of the Cosmic Microwave Background with the 2MASS Galaxy Survey: Signatures of Dark Energy, Hot Gas, and Point Sources

We cross-correlate the Cosmic Microwave Background (CMB) temperature anisotropies observed by the Wilkinson Microwave Anisotropy Probe (WMAP) with the projected distribution of extended sources in the Two Micron All Sky Survey (2MASS). By…

天体物理学 · 物理学 2009-08-29 Niayesh Afshordi , Yeong-Shang Loh , Michael A. Strauss

Internal delensing of Planck CMB temperature and polarization

We present a first internal delensing of CMB maps, both in temperature and polarization, using the public foreground-cleaned (SMICA) Planck 2015 maps. After forming quadratic estimates of the lensing potential, we use the corresponding…

宇宙学与河外天体物理 · 物理学 2017-05-24 Julien Carron , Antony Lewis , Anthony Challinor

Ironing out primordial temperature fluctuations with polarisation: optimal detection of cosmic structure imprints

Secondary anisotropies of the cosmic microwave background (CMB) can be detected by using the cross-correlation between the large-scale structure (LSS) and the CMB temperature fluctuations. In such studies, chance correlations of primordial…

天体物理学 · 物理学 2009-02-26 Mona Frommert , Torsten A. Ensslin

Cross-Correlation of Far-Infrared Background Anisotropies and CMB Lensing from Herschel and Planck satellites

The cosmic infrared background (CIB) anisotropies and cosmic microwave background (CMB) lensing are powerful measurements for exploring the cosmological and astrophysical problems. In this work, we measure the auto-correlation power…

宇宙学与河外天体物理 · 物理学 2020-09-30 Ye Cao , Yan Gong , Chang Feng , Asantha Cooray , Gong Cheng , Xuelei Chen