Results 111 to 120 of about 132,304 (298)
Testing Isotropy of Cosmic Microwave Background Radiation
We introduce new symmetry-based methods to test for isotropy in cosmic microwave background radiation. Each angular multipole is factored into unique products of power eigenvectors, related multipoles and singular values that provide 2 new rotationally ...
Jain, Pankaj +3 more
core +2 more sources
THE COSMIC MICROWAVE BACKGROUND RADIATION* [PDF]
Because angular anisotropies and spectral distortions of the cosmic microwave background radiation are judged to be inevitable at some level, in a realistic cosmological model, the evidence for spectral distortions and its theoretical implications are described.
openaire +1 more source
Cosmic Microwave Background and Inflation Parameters
24 pages, 10 figures, 2 tables, Int. J. Theor. Phys. 2004, ed. E. Verdaguer, "Peyresq Physics 8", "The Early Universe: Confronting theory with observations" (June 21-27, 2003)
Bond, J. Richard +3 more
openaire +3 more sources
Cosmic microwave background constraints on primordial black hole dark matter [PDF]
We revisit cosmic microwave background (CMB) constraints on primordial black hole dark matter. Spectral distortion limits from COBE/FIRAS do not impose a relevant constraint. Planck CMB anisotropy power spectra imply that primordial black holes with mBH≳
Daniel Aloni, Kfir Blum, R. Flauger
semanticscholar +1 more source
Abstract The Galilean satellite Europa is a primary candidate for the study of ocean worlds. In anticipation of NASA's Europa Clipper and ESA's JUICE missions, we revisit the magnetic field measurements of the Galileo spacecraft. The ocean's induction response is governed by its induction amplitude and phase shift, which are a function of the ocean ...
Jason Winkenstern +2 more
wiley +1 more source
Perspectives for Cosmological Reionization From Future CMB and Radio Projects
In spite of the great recent results from the Planck satellite supporting cosmological reionization scenarios almost compatible with astrophysical models for the evolution of structure, galaxy and star formation, the full understanding of the ...
Tiziana Trombetti +4 more
doaj +1 more source
Tropical Tropopause Layer Evolution During QBO Disruptions
Abstract The tropical tropopause layer (TTL) is studied during 2015/16 and 2019/20 quasi‐biennial oscillation (QBO) disruption events using GNSS‐RO and SWOOSH satellite observations and the ERA5 reanalysis. By compositing temperature, water vapor, and tropical upwelling during different phases of QBO and QBO disruptions (XQBO), we show that XQBO events
Lan Luan +3 more
wiley +1 more source
On parton distributions in a photon gas
In some cases it may be useful to know parton distributions in a photon gas. This may be relevant, e.g., for the analysis of interactions of high energy cosmic ray particles with the cosmic microwave background radiation.
A. Ringwald +27 more
core +1 more source
Abstract High‐resolution geospatial soil moisture measurements are needed to inform hydrological modeling and to guide water management in agriculture, especially in highly heterogeneous systems such as micro‐irrigated orchards. In this research, we used a Portable L‐band Radiometer (PoLRa) to map very high‐resolution (<2 m) soil surface moisture in ...
Elia Scudiero +7 more
wiley +1 more source
Information Gains from Cosmic Microwave Background Experiments
To shed light on the fundamental problems posed by Dark Energy and Dark Matter, a large number of experiments have been performed and combined to constrain cosmological models.
Akeret, Joël +4 more
core +1 more source

