ON VERIFICATION OF THE ASYMPTOTIC MODEL OF THE 1ST KIND

Authors
Citation
Ii. Shevchenko, ON VERIFICATION OF THE ASYMPTOTIC MODEL OF THE 1ST KIND, Astrophysics and space science, 202(1), 1993, pp. 45-56
Citations number
12
Categorie Soggetti
Astronomy & Astrophysics
ISSN journal
0004640X
Volume
202
Issue
1
Year of publication
1993
Pages
45 - 56
Database
ISI
SICI code
0004-640X(1993)202:1<45:OVOTAM>2.0.ZU;2-J
Abstract
For the case of closed Friedmann models with the cosmological constant , an 'N-lambda' dependence is Plotted, where N is the conformal time o f existence of the Universe, and lambda is the ratio of the cosmologic al constant to its Einstein's value. The observational properties of t he asymptotic model of the first kind (the so-called A1 model) corresp onding to the maximum of this dependence are analyzed. For the matter- dominated models, the maximum is achieved at the point lambda = 1. For mulae for the calculation of the age of the Universe and for that of t he photometric distance in the A1 model are deduced. The observational properties of the A1 model are compared to the corresponding properti es of the standard cosmological model (lambda = 0) which does not occu py any special distinguished position on the 'N-lambda' diagram. It is shown that from the standpoint of the modem observational cosmology t hese two models cannot be told one from another. However, the A1 model has better standing from the viewpoint of the 'strong' wordings of th e anthropic cosmological principle.