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Type:
Abstract
Title:
Galaxy formation, clustering and the 'hidden mass'
Authors:
Rees, M. J.; Kashlinsky, A.
Affiliation:
AA(Cambridge University, Cambridge, England), AB(Cambridge University, Cambridge, England)
Journal:
In: Progress in cosmology; Proceedings of the Oxford International Symposium, Oxford, England, September 14-18, 1981. (A82-47830 24-90) Dordrecht, D. Reidel Publishing Co., 1982, p. 259-273.
Publication Date:
01/1982
Origin:
STI
Aabstract Copyright:
Bibliographic Code:
1982pric.conf..259R
Doc-summary/Abstract:
Progress toward quantifying the processes of galactic evolution is assessed. Attention is given to two types of perturbations which may have been present in the early universe to trigger the formation of galaxies. Isothermal perturbations would have been fixed into every succeeding evolutionary step, and have been generated by viscous damping of the oscillatory component. Recombination, followed by the appearance of gravitational instabilities, would coincide with a current remnant amplitude of at least 0.001. Adiabatic perturbations require maintenance of the photon/baryon ratio. Redshift surveys of fluctuations on the scale of 10-100 Mpc indicate that superclustering of galaxies may be occurring. The different candidates for the hidden mass of the universe - massonium - are reviewed, noting that if the mass is in discrete, compact objects then gravitational lensing may be observable. Finally, the properties of Population III pregalactic objects which are projected by models of cosmic evolution involving primordial entropy fluctuations are discussed.
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