DECAYING VACUUM FLAT COSMOLOGICAL MODELS - EXPRESSIONS FOR SOME OBSERVABLE QUANTITIES AND THEIR PROPERTIES

Authors
WAGA I
Citation
I. Waga, DECAYING VACUUM FLAT COSMOLOGICAL MODELS - EXPRESSIONS FOR SOME OBSERVABLE QUANTITIES AND THEIR PROPERTIES, The Astrophysical journal, 414(2), 1993, pp. 436-448
Citations number
74
Categorie Soggetti
Astronomy & Astrophysics
Journal title
The Astrophysical journal → ACNP
ISSN journal
0004637X
Volume
414
Issue
2
Year of publication
1993
Part
1
Pages
436 - 448
Database
ISI
SICI code
0004-637X(1993)414:2<436:DVFCM->2.0.ZU;2-P
Abstract
Flat cosmological models with a cosmological term varying as LAMBDA = alphaR-2 + betaH-2 + gamma are investigated. Exact expressions for obs ervable quantities are obtained and some of their properties discussed . The lookback time-redshift, the luminosity distance redshift, the an gular diameter distance-redshift and the comoving volume derivative-re dshift diagrams for some selected world models are also presented.