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While the cosmic microwave background (CMB) dipole is largely assumed entirely kinematic, there appears evidence that a part of it is primordial. Such possibility arises in models implying a tilt, interpreted as a dark flow, across the…

宇宙学与河外天体物理 · 物理学 2022-06-29 A. Kashlinsky , F. Atrio-Barandela

Conventional interpretation of the observed cosmic microwave background (CMB) dipole is that all of it is produced by local peculiar motions. Alternative explanations requiring part of the dipole to be primordial have received support from…

宇宙学与河外天体物理 · 物理学 2011-06-03 D. J. Fixsen , A. Kashlinsky

This paper discusses the Cosmic Background (CB) dipoles observations in the framework of the Planck mission. Dipoles observations can be used in three ways: (i) It gives a measurement of the peculiar velocity of our Galaxy which is an…

天体物理学 · 物理学 2009-11-07 M. Piat , G. Lagache , J. P. Bernard , M. Giard , J. L. Puget

The cosmic infrared background (CIB) sourced by infrared emission from dusty star-forming galaxies is a valuable source of information on the star formation history of the Universe. In measurements of the millimeter sky at frequencies…

宇宙学与河外天体物理 · 物理学 2021-05-19 Fiona McCarthy , Mathew S. Madhavacheril

The Cosmic Microwave Background (CMB) is a relict of the early universe. Its perfect 2.725K blackbody spectrum demonstrates that the universe underwent a hot, ionized early phase; its anisotropy (about 80 \mu K rms) provides strong evidence…

天体物理仪器与方法 · 物理学 2015-06-11 Paolo de Bernardis , Silvia Masi

We review aspects of Cosmic Microwave Background (CMB) spectral distortions which do not appear to have been fully explored in the literature. In particular, implications of recent evidences of heating of the intergalactic medium (IGM) by…

宇宙学与河外天体物理 · 物理学 2016-04-13 G. De Zotti , M. Negrello , G. Castex , A. Lapi , M. Bonato

The Cosmic Infrared Background (CIB) reflects the sum total of galactic luminosities integrated over the entire age of the universe. From its measurements one can deduce information about objects at epochs currently inaccessible to…

天体物理学 · 物理学 2009-11-10 A. Kashlinsky

The cosmic infrared background (CIB) is a sensitive measure of the star formation history. But this background is overwhelmed by foregrounds, which bias the CIB mean flux and auto correlation measurement severely. Since dominant foregrounds…

天体物理学 · 物理学 2007-05-23 Pengjie Zhang

In this work, we formalize a new technique to investigate joint posterior density of Cosmic Microwave Background (CMB) signal and its theoretical angular power spectrum given the observed data, using the global internal-linear-combination…

宇宙学与河外天体物理 · 物理学 2018-10-23 Vipin Sudevan , Rajib Saha

Recent CMB observations have resulted in very precise observational data. A robust and reliable CMB reconstruction technique can lead to efficient estimation of the cosmological parameters. We demonstrate the performance of our methodology…

宇宙学与河外天体物理 · 物理学 2023-01-31 Albin Joseph , Ujjal Purkayastha , Rajib Saha

The Cosmic Microwave Background (CMB) radiation B mode polarization signal contains the unique signature of primordial metric perturbations produced during the inflation. The separation of the weak CMB B-mode signal from strong foreground…

宇宙学与河外天体物理 · 物理学 2021-06-24 Sarvesh Kumar Yadav , Rajib Saha

The Cosmic Infrared Background (CIB) is hidden behind veils of foreground emission from our own solar system and Galaxy. This paper describes procedures for removing the Galactic IR emission from the 1.25 - 240 micron COBE DIRBE maps as…

Accurate measurements of the Cosmic Microwave Background (CMB) anisotropy call for high precision and reliability of the in-flight calibration. For extended surveys the CMB dipole provides an excellent calibration source at frequencies…

天体物理学 · 物理学 2009-11-10 B. Cappellini , D. Maino , G. Albetti , P. Platania , R. Paladini , A. Mennella , M. Bersanelli

The Cosmic Microwave Background anisotropies are difficult to measure at large angular scales. In this paper, we present a new analysis of the \Planck\ High Frequency Instrument data that brings the cosmological part and its major…

宇宙学与河外天体物理 · 物理学 2021-06-09 J. -M. Delouis , J. -L. Puget , L. Vibert

The Cosmic Microwave Background (CMB) is a fundamental observational tool in modern cosmology. The linear polarization of the CMB provides a crucial observational tool for exploring new physics, including the inflationary paradigm and…

宇宙学与河外天体物理 · 物理学 2025-03-12 Vyoma Muralidhara

Studying the polarization and spectral distortion of the Cosmic Microwave Background (CMB) in tandem with intensity fluctuations of the Cosmic Infrared Background (CIB) allows us to verify our assumptions on cosmic inflation and investigate…

The Internal Linear Combination (ILC) method is commonly employed to extract the cosmic microwave background (CMB) signal from multi-frequency observation maps. However, the performance of the ILC method tends to degrade when the…

宇宙学与河外天体物理 · 物理学 2024-05-31 Zirui Zhang , Yang Liu , Si-Yu Li , Haifeng Li , Hong Li

The combination and cross-correlation of the upcoming $Euclid$ data with cosmic microwave background (CMB) measurements is a source of great expectation since it will provide the largest lever arm of epochs, ranging from recombination to…

宇宙学与河外天体物理 · 物理学 2022-01-19 Euclid Collaboration , S. Ilić , N. Aghanim , C. Baccigalupi , J. R. Bermejo-Climent , G. Fabbian , L. Legrand , D. Paoletti , M. Ballardini , M. Archidiacono , M. Douspis , F. Finelli , K. Ganga , C. Hernández-Monteagudo , M. Lattanzi , D. Marinucci , M. Migliaccio , C. Carbone , S. Casas , M. Martinelli , I. Tutusaus , P. Natoli , P. Ntelis , L. Pagano , L. Wenzl , A. Gruppuso , T. Kitching , M. Langer , N. Mauri , L. Patrizii , A. Renzi , G. Sirri , L. Stanco , M. Tenti , P. Vielzeuf , F. Lacasa , G. Polenta , V. Yankelevich , A. Blanchard , Z. Sakr , A. Pourtsidou , S. Camera , V. F. Cardone , M. Kilbinger , M. Kunz , K. Markovic , V. Pettorino , A. G. Sánchez , D. Sapone , A. Amara , N. Auricchio , R. Bender , C. Bodendorf , D. Bonino , E. Branchini , M. Brescia , J. Brinchmann , V. Capobianco , J. Carretero , F. J. Castander , M. Castellano , S. Cavuoti , A. Cimatti , R. Cledassou , G. Congedo , C. J. Conselice , L. Conversi , Y. Copin , L. Corcione , A. Costille , M. Cropper , A. Da Silva , H. Degaudenzi , F. Dubath , C. A. J. Duncan , X. Dupac , S. Dusini , A. Ealet , S. Farrens , P. Fosalba , M. Frailis , E. Franceschi , P. Franzetti , M. Fumana , B. Garilli , W. Gillard , B. Gillis , C. Giocoli , A. Grazian , F. Grupp , L. Guzzo , S. V. H. Haugan , H. Hoekstra , W. Holmes , F. Hormuth , P. Hudelot , K. Jahnke , S. Kermiche , A. Kiessling , R. Kohley , B. Kubik , M. Kümmel , H. Kurki-Suonio , R. Laureijs , S. Ligori , P. B. Lilje , I. Lloro , O. Mansutti , O. Marggraf , F. Marulli , R. Massey , S. Maurogordato , M. Meneghetti , E. Merlin , G. Meylan , M. Moresco , B. Morin , L. Moscardini , E. Munari , S. M. Niemi , C. Padilla , S. Paltani , F. Pasian , K. Pedersen , W. Percival , S. Pires , M. Poncet , L. Popa , L. Pozzetti , F. Raison , R. Rebolo , J. Rhodes , M. Roncarelli , E. Rossetti , R. Saglia , R. Scaramella , P. Schneider , A. Secroun , G. Seidel , S. Serrano , C. Sirignano , J. L. Starck , P. Tallada-Crespí , A. N. Taylor , I. Tereno , R. Toledo-Moreo , F. Torradeflot , E. A. Valentijn , L. Valenziano , G. A. Verdoes Kleijn , Y. Wang , N. Welikala , J. Weller , G. Zamorani , J. Zoubian , E. Medinaceli , S. Mei , C. Rosset , F. Sureau , T. Vassallo , A. Zacchei , S. Andreon , A. Balaguera-Antolínez , M. Baldi , S. Bardelli , A. Biviano , S. Borgani , E. Bozzo , C. Burigana , R. Cabanac , A. Cappi , C. S. Carvalho , G. Castignani , C. Colodro-Conde , J. Coupon , H. M. Courtois , J. Cuby , S. de la Torre , D. Di Ferdinando , H. Dole , M. Farina , P. G. Ferreira , P. Flose-Reimberg , S. Galeotta , G. Gozaliasl , J. Graciá-Carpio , E. Keihanen , C. C. Kirkpatrick , V. Lindholm , G. Mainetti , D. Maino , N. Martinet , M. Maturi , R. B. Metcalf , G. Morgante , C. Neissner , J. Nightingale , A. A. Nucita , D. Potter , G. Riccio , E. Romelli , M. Schirmer , M. Schultheis , V. Scottez , R. Teyssier , A. Tramacere , J. Valiviita , M. Viel , L. Whittaker , E. Zucca

Scattering of cosmic microwave background (CMB) radiation in galaxy clusters induces a polarization signal proportional to the CMB quadrupole anisotropy at the cluster's location and look-back time. A survey of such remote quadrupole…

天体物理学 · 物理学 2007-05-23 Emory F. Bunn

AIMS: The separation of foreground contamination from cosmic microwave background (CMB) observations is one of the most challenging and important problem of digital signal processing in Cosmology. In literature, various techniques have been…

天体物理学 · 物理学 2015-05-13 R. Vio , P. Andreani
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