Results 251 to 260 of about 277,653 (299)
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Scars on the Cosmic Background Radiation?
The Astrophysical Journal, 1998We ask whether the universe can be a patchwork consisting of distinct regions of matter and antimatter. In previous work, we demonstrated that postrecombination matter-antimatter contact near regional boundaries leads to an observable (but unobserved) gamma-ray flux for domain sizes of less than a few thousand megaparsecs, thereby excluding such ...
A. De Rújula +2 more
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Spectrum of the Cosmic Background Radiation
Annals of the New York Academy of Sciences, 1984Distortions of the spectrum of the cosmic background radiation from a Planckian shape may be expected for a variety of physical reasons. Presently available experimental data are compared.
SIRONI G +7 more
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1998
Space is not dark and empty but filled with radiation. Most of its energy lies in the microwave region of the spectrum, near wavelengths of about 1 or 2 millimeters, coming evenly from all directions. This light, called the “cosmic microwave background radiation,” is left over from the Big Bang.
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Space is not dark and empty but filled with radiation. Most of its energy lies in the microwave region of the spectrum, near wavelengths of about 1 or 2 millimeters, coming evenly from all directions. This light, called the “cosmic microwave background radiation,” is left over from the Big Bang.
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Calculation of Cosmic microwave background radiation parameters using COBE/FIRAS dataset
Experimental astronomy (Print), 2023Somita Dhal +3 more
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Angular Momentum of the Cosmic Background Radiation
Physical Review Letters, 1979The effect of a nontrivial conserved isotropic total angular momentum M/sup 2/ = m/sub x/ /sup 2/ + m/sub y/ /sup 2/ + m/sub z/ /sup 2/ on the equilibrium distribution of energy in a photon gas is examined. It is shown that the correspondingly modified Planck law takes the form F (..nu..) = const..nu gamma../sup -1/ln((1-e/sup ..beta..upsilon..gamma ...
Jakobsen, Hans Plesner +2 more
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1989
The photon is the best probe we have of the distant regions of the universe. There are two regions in the electromagnetic spectrum where one can expect to see far back into the universe. In both of these windows there are backgrounds which are now being explored and studied.
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The photon is the best probe we have of the distant regions of the universe. There are two regions in the electromagnetic spectrum where one can expect to see far back into the universe. In both of these windows there are backgrounds which are now being explored and studied.
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A brief note on cosmic background radiation
Chaos, Solitons & Fractals, 2000zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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The Thermal Cosmic Background Radiation
Principles of Physical Cosmology, 2020semanticscholar +1 more source
Fluctuations in the Cosmic Background Radiation
1993The search for fluctuations in the CMB is one of the major challenges of contemporary Astrophysics. Not surprisingly, the sought-after signal is affected by foreground effects generated in our own Galaxy. The present work concerns the likely magnitude of these effects and their influence on the conclusions to be drawn from the recent observations of ...
M. Giller, A. W. Wolfendale
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Cosmic background radiation physics
AIP Conference Proceedings, 1990At the time of the 25th anniversary of the discovery of the Cosmic Background Radiation, speculations are presented as to where the field will be in another 25 years. Future trends are forecast. (AIP)
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