Results 121 to 130 of about 49,997 (277)

Separation of Correlated Astrophysical Sources Using Multiple-Lag Data Covariance Matrices

open access: yesEURASIP Journal on Advances in Signal Processing, 2005
This paper proposes a new strategy to separate astrophysical sources that are mutually correlated. This strategy is based on second-order statistics and exploits prior information about the possible structure of the mixing matrix.
Baccigalupi C   +5 more
doaj   +1 more source

Testing the ΛCDM Cosmological Model with Forthcoming Measurements of the Cosmic Microwave Background with SPT-3G

open access: yesThe Astrophysical Journal
We forecast constraints on cosmological parameters enabled by three surveys conducted with SPT-3G, the third-generation camera on the South Pole Telescope.
K. Prabhu   +102 more
doaj   +1 more source

Reionization and the cosmic microwave background

open access: yes, 2008
6 pages, plain Tex, figures can be requested from frost@bkyast.berkeley.edu, CfPA-94-th ...
openaire   +4 more sources

Forecast of Foreground Cleaning Strategies for AliCPT-1

open access: yesThe Astrophysical Journal Supplement Series
We report the test results of several independent foreground cleaning pipelines used in the Ali CMB Polarization Telescope experiment (AliCPT-1), a high-altitude cosmic microwave background (CMB) imager in the Northern Hemisphere with thousands of ...
Junzhou Zhang   +19 more
doaj   +1 more source

Betti Functionals as Probes for Cosmic Topology

open access: yesUniverse
The question of the global topology of the Universe (cosmic topology) is still open. In the ΛCDM concordance model, it is assumed that the space of the Universe possesses the trivial topology of R3, and thus that the Universe has an infinite volume.
Ralf Aurich, Frank Steiner
doaj   +1 more source

On Observing the Cosmic Microwave Background

open access: yes, 1997
30 pages with 12 figures included. Uses epsf. Proceedings from the 3rd Int. School of Particle Astrophysics: "Generation of Large Scale Cosmological Structures," Erice, Sicily, Nov 3-13 ...
openaire   +3 more sources

Planck Dust Polarization Power Spectra Are Consistent with Strongly Supersonic Turbulence

open access: yesThe Astrophysical Journal
The polarization of the cosmic microwave background is rich in information but obscured by foreground emission from the Milky Way’s interstellar medium (ISM). To uncover relationships between the underlying turbulent ISM and the foreground power spectra,
Kye A. Stalpes   +2 more
doaj   +1 more source

ƒ(R) Gravity, Relic Coherent Gravitons and Optical Chaos

open access: yesGalaxies, 2014
We discuss the production of massive relic coherent gravitons in a particular class of ƒ(R) gravity, which arises from string theory, and their possible imprint in the Cosmic Microwave Background.
Lawrence B. Crowell, Christian Corda
doaj   +1 more source

Abstracts

open access: yesMolecular Oncology, Volume 19, Issue S1, Page 1-940, June 2025.
Abstracts submitted to the ‘EACR 2025 Congress: Innovative Cancer Science’, from 16–19 June 2025 and accepted by the Congress Organising Committee are published in this Supplement of Molecular Oncology, an affiliated journal of the European Association for Cancer Research (EACR).
wiley   +1 more source

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