Mathematics – Logic
Scientific paper
Sep 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009ap%26ss.323..197s&link_type=abstract
Astrophysics and Space Science, Volume 323, Issue 2, pp.197-203
Mathematics
Logic
1
Cosmology, Exact Solutions, Hubble Parameter, Cosmological Constant, Deceleration Parameter
Scientific paper
In this paper we consider a locally-rotationally-symmetric (LRS) Bianchi type-V perfect fluid model with variable cosmological ‘constant’ representing the energy density of vacuum. The field equations are solved with and without heat conduction by using a variation law for the mean Hubble parameter, which is related to the average scale factor of the metric and yields a constant value of the deceleration parameter. A constant value of deceleration parameter generates power-law form of average scale factor which is used to find the exact solutions with and without heat conduction with decaying vacuum density. The solutions presented here satisfy all the necessary conditions for the physically acceptability. The thermodynamical relations in decaying vacuum fluid model are also studied in detail.
No associations
LandOfFree
LRS Bianchi-V cosmology with decaying vacuum density and heat flow does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with LRS Bianchi-V cosmology with decaying vacuum density and heat flow, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and LRS Bianchi-V cosmology with decaying vacuum density and heat flow will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1272388