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Non,thermal Cosmic Gravitational Radiation and Redshift Fluctuations
Author(s) -
Dautcourt G.
Publication year - 1974
Publication title -
astronomische nachrichten
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 63
eISSN - 1521-3994
pISSN - 0004-6337
DOI - 10.1002/asna.19742950602
Subject(s) - physics , intergalactic travel , astrophysics , redshift , gravitational wave , gravitational field , perturbation (astronomy) , cosmic cancer database , gravitational redshift , observable , astronomy , galaxy , quantum mechanics
Intergalactic gravitational radiation fields with wavelengths in the range of 1 to 10 3 Megaparsecs have remarkable observational effects if the energy density of the fields becomes comparable to the equivalent “critical” cosmological matter density χo = 3 H 0 2 . In this case the perturbation in the space‐time metric caused by the radiation field is high enough to change the frequency and to shift the path of light rays of extragalactic objects in a random manner by observable amounts. The present paper discusses the wave spectrum as a function of cosmic time and gives a statistical treatment of the redshift fluctuations.