8 Result(s)
within
R. D. DAVIES
Classical and Quantum Gravitation, Relativity Theory
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Chapter
Observational Limits on Neutral Hydrogen in Primordial Protoclusters
After recombination in the early Universe, gas will pass through a neutral phase on its way to condensation into galaxies and stars. Radio emission in the reshifted 21 cm line of neutral hydrogen can be used t...
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Chapter
The Motion of the Local Group of Galaxies with Respect to the Background of Galaxies
A measurement of the motion of the Local Group of galaxies through the Universe provides an indication of their peculiar motion relative to the Hubble flow consequent upon the gravitational influence of the lo...
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Chapter
10 to 60 Arcmin Fluctuations in the Cosmic Microwave Background
Considerable astronomical interest attaches to sensitive measurements of temperature fluctuations of the microwave background on scales of a few arcmins to a few degrees. We describe here the first in a series...
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Chapter and Conference Paper
High Sensitivity Observations of the Microwave Background Radiation
Angular fluctuations in the cosmic microwave background radiation are indicators of the seed structure at recombination (z ≃ 1000) which subsequently evolves into the present-day Universe (z = 0). Such measure...
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Chapter
Peculiar Velocities of Nearby Spiral Galaxies
We report measurements of peculiar velocities from a sample of over 300 intermediate-type spiral galaxies. The galaxies have been observed at λ21cm at Jodrell Bank and Parkes (Staveley-Smith & Davies 1987,1988...
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Chapter
Large Scale Structure: Its possible imprint on the CMB?
We present the new results of the Jodrell-IAC Cosmic Microwave Background (CMB) anisotropy experiment for declination +40°. A similar level of sensitivity has been achieved with respect to the reported previou...
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Chapter
Observations of Microwave Background Anisotropy at Tenerife and Cambridge
A brief summary of the status of microwave background anisotropy observations at Tenerife and Cambridge is given. New 15 GHz Tenerife results give a preliminary limit of ΔT/T ≲ 2.5 x 10-5 on an angu...
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Chapter
New Results on CMB Structure From the Tenerife Experiments
Temperature fluctuations in the CMB (Cosmic Microwave Background) are a key prediction of cosmological models of structure formation in the early Universe. Observations at the Teide Observatory, Tenerife using...
