GROWTH OF DENSITY INHOMOGENEITIES IN NEWTONIAN COSMOLOGICAL MODELS WITH VARIABLE-LAMBDA

Authors
ARCURI RC WAGA I
Citation
Rc. Arcuri et I. Waga, GROWTH OF DENSITY INHOMOGENEITIES IN NEWTONIAN COSMOLOGICAL MODELS WITH VARIABLE-LAMBDA, Physical review. D. Particles and fields, 50(4), 1994, pp. 2928-2931
Citations number
35
Categorie Soggetti
Physics, Particles & Fields
Journal title
Physical review. D. Particles and fields → ACNP
ISSN journal
05562821
Volume
50
Issue
4
Year of publication
1994
Pages
2928 - 2931
Database
ISI
SICI code
0556-2821(1994)50:4<2928:GODIIN>2.0.ZU;2-8
Abstract
We analyze the growth of density perturbations in Newtonian cosmologic al models with continuous matter creation and obtain the time evolutio n equation for the mass density contrast. The special case where matte r is created by the decay of a cosmological term (LAMBDA) varying as L AMBDA = 3betaH-2 is examined. Constraints on the value of beta from th e observed high isotropy of the cosmic microwave background radiation are also obtained.