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Can redshift discrepancies in galaxy systems be explained by low‐frequency gravitational radiation? I. distant clusters
Author(s) -
Dautcourt G.
Publication year - 1977
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.19772980204
Subject(s) - physics , astrophysics , redshift , gravitational wave , gravitational redshift , galaxy , gravitational energy , galaxy cluster , gravitation , virial theorem , astronomy , wavelength , optics
Some proposals have been made in recent years that extremely low‐frequency cosmic gravitational radiation with wavelengths of the order megaparsecs and larger and with the cosmological energy density may be able to explain the virial mass discrepancy in at least some systems of galaxies. The question is rediscussed here with the result that — for all conceivable spectral densities — the gravitational wave influence on the propagation of light from a galaxy cluster does not solve redshift problem for rich and distant clusters — at least if waves with an energy density not exceeding the critical cosmological density are considered.