English
Related papers

Related papers: Summary of Results from COBE

200 papers

We describe an efficient and exact method that enables global Bayesian analysis of cosmic microwave background (CMB) data. The method reveals the joint posterior density (or likelihood for flat priors) of the power spectrum $C_\ell$ and the…

Astrophysics · Physics 2009-11-10 Benjamin D. Wandelt , David L. Larson , Arun Lakshminarayanan

The Cosmic Microwave Background (CMB), which permeates the entire Universe, is the radiation left over from just 380,000 years after the Big Bang. On very large scales, the CMB radiation field is smooth and isotropic, but the existence of…

The detection of the Cosmic Microwave Background Radiation (CMB) was one of the most important cosmological discoveries of the last century. With the development of interferometric gravitational wave detectors, we may be in a position to…

General Relativity and Quantum Cosmology · Physics 2015-06-25 Vincent Corbin , Neil J. Cornish

High resolution cosmic microwave background (CMB) experiments have allowed us to precisely measure the CMB temperature power spectrum down to very small scales (multipole $\ell \sim 3000$). Such measurements at multiple frequencies enable…

Cosmology and Nongalactic Astrophysics · Physics 2023-06-21 Abhishek S. Maniyar , Athanasia Gkogkou , William R. Coulton , Zack Li , Guilaine Lagache , Anthony R. Pullen

Observations of the Cosmic Microwave Background (CMB) temperature fluctuations are a powerful tool for testing theories of the early Universe and for measuring cosmological parameters. We present basics of CMB physics, review some of the…

Astrophysics · Physics 2007-05-23 Jean-Christophe Hamilton

The anisotropies of the cosmic microwave background (CMB) are computed for the half-turn space E_2 which represents a compact flat model of the Universe, i.e. one with finite volume. This model is inhomogeneous in the sense that the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 R. Aurich , S. Lustig

The PLANCK satellite mission has been launched the 14th of May 2009 and is dedicated to the measurement of the Cosmic Microwave Background (CMB) in temperature and polarization. The presence of diffuse galactic polarized emission…

Cosmology and Nongalactic Astrophysics · Physics 2010-07-20 L. Fauvet , J. F. Macias-Perez , F. X. Desert

We discuss new techniques and ideas in mm-wave instrumentation that can be used in CMB (Cosmic Microwave background) polarization experiments. Novel techniques in antenna receiver, beam combining and detector systems have resulted in…

Instrumentation and Methods for Astrophysics · Physics 2024-03-07 Siddharth Savyasachi Malu

The cosmic infrared background (CIB) radiation was a long-sought fossil of energetic processes associated with structure formation and chemical evolution since the Big Bang. The COBE Diffuse Infrared Background Experiment (DIRBE) and Far…

Astrophysics · Physics 2007-05-23 M. G. Hauser

The cosmic microwave background (CMB) is a significant source of knowledge about the origin and evolution of our universe. However, observations of the CMB are contaminated by foreground emissions, obscuring the CMB signal and reducing its…

Machine Learning · Computer Science 2023-02-27 Jadie Adams , Steven Lu , Krzysztof M. Gorski , Graca Rocha , Kiri L. Wagstaff

We give a brief review of the physics of acoustic oscillations in Cosmic Microwave Background (CMB) anisotropies. As an example of the impact of their detection in cosmology, we show how the present data on CMB angular power spectrum on…

Astrophysics · Physics 2015-06-24 C. Baccigalupi , A. Balbi , S. Matarrese , F. Perrotta , N. Vittorio

We use a high-accuracy computational code to investigate the precision with which cosmological parameters could be reconstructed by future cosmic microwave background (CMB) experiments, in particular the two satellite missions MAP and…

Astrophysics · Physics 2009-10-30 M. Zaldarriaga , D. Spergel , U. Seljak

We briefly review our work about the polarized foreground contamination of the Cosmic Microwave Background maps. We start by summarizing the main properties of the polarized cosmological signal, resulting in "electric" (E) and "magnetic"…

Astrophysics · Physics 2014-10-13 Carlo Baccigalupi , Gianfranco De Zotti , Carlo Burigana , Francesca Perrotta

The B-Mode of the Cosmic Microwave Background Polarization (CMBP) promises to detect the gravitational wave background left by Inflation and explore this very early period of the Universe. In spite of its importance, however, the cosmic…

Astrophysics · Physics 2007-05-23 E. Carretti

The COBE satellite has discovered anisotropies in the cosmic microwave background (CMB) consistent with a scale invariant spectrum of density perturbations. As reviewed in this lecture, topological defect models of structure formation…

High Energy Physics - Phenomenology · Physics 2007-05-23 Robert H. Brandenberger

The cosmic microwave background (CMB), the relic radiation from the early Universe, offers a unique window into both primordial conditions and the intervening large-scale structure (LSS) it traverses. Interactions between CMB photons and…

Cosmology and Nongalactic Astrophysics · Physics 2025-01-24 Federico Bianchini , Abhishek S. Maniyar

This Science White Paper, prepared in response to the ESA Voyage 2050 call for long-term mission planning, aims to describe the various science possibilities that can be realized with an L-class space observatory that is dedicated to the…

We derive updated Cosmic Microwave Background (CMB) constraints on annihilating dark matter, and present forecasts for upcoming CMB surveys. We show that the addition of recent temperature, polarization, and lensing data from ground-based…

Cosmology and Nongalactic Astrophysics · Physics 2025-12-12 Charlotte Myers , Dominic Agius , Daniele Gaggero , Angelo Ricciardone

[Abridged] The measurement of the polarization of the Cosmic Microwave Background radiation is one of the current frontiers in cosmology. In particular, the detection of the primordial B-modes, could reveal the presence of gravitational…

Instrumentation and Methods for Astrophysics · Physics 2021-08-10 The LSPE collaboration , G. Addamo , P. A. R. Ade , C. Baccigalupi , A. M. Baldini , P. M. Battaglia , E. S. Battistelli , A. Baù , P. de Bernardis , M. Bersanelli , M. Biasotti , A. Boscaleri , B. Caccianiga , S. Caprioli , F. Cavaliere , F. Cei , K. A. Cleary , F. Columbro , G. Coppi , A. Coppolecchia , F. Cuttaia , G. D'Alessandro , G. De Gasperis , M. De Petris , V. Fafone , F. Farsian , L. Ferrari Barusso , F. Fontanelli , C. Franceschet , T. C. Gaier , L. Galli , F. Gatti , R. Genova-Santos , M. Gerbino , M. Gervasi , T. Ghigna , D. Grosso , A. Gruppuso , R. Gualtieri , F. Incardona , M. E. Jones , P. Kangaslahti , N. Krachmalnicoff , L. Lamagna , M. Lattanzi , C. H. López-Caraballo , M. Lumia , R. Mainini , D. Maino , S. Mandelli , M. Maris , S. Masi , S. Matarrese , A. May , L. Mele , P. Mena , A. Mennella , R. Molina , D. Molinari , G. Morgante , U. Natale , F. Nati , P. Natoli , L. Pagano , A. Paiella , F. Panico , F. Paonessa , S. Paradiso , A. Passerini , M. Perez-de-Taoro , O. A. Peverini , F. Piacentini , L. Piccirillo , G. Pisano , D. Poletti , G. Presta , S. Realini , N. Reyes , J. A. Rubino-Martin , M. Sandri , S. Sartor , F. Pezzotta , G. Polenta , A. Rocchi , A. Schillaci , G. Signorelli , B. Siri , M. Soria , F. Spinella , V. Tapia , A. Tartari , A. C. Taylor , L. Terenzi , M. Tomasi , E. Tommasi , C. Tucker , D. Vaccaro , D. M. Vigano , F. Villa , G. Virone , N. Vittorio , A. Volpe , R. E. J. Watkins , A. Zacchei , M. Zannoni

The Cosmic Microwave Background (CMB) encodes information on the origin and evolution of the universe, buried in a fractional anisotropy of one part in 100,000 on angular scales from arcminutes to tens of degrees. We await the coming…

Astrophysics · Physics 2007-05-23 J. Richard Bond , Robert G. Crittenden , Andrew H. Jaffe , Lloyd Knox