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Article: Full causal bulk-viscous cosmological models

TitleFull causal bulk-viscous cosmological models
Authors
Issue Date1998
PublisherAmerican Institute of Physics. The Journal's web site is located at http://ojps.aip.org/jmp/
Citation
Journal of Mathematical Physics, 1998, v. 39 n. 10, p. 5458-5476 How to Cite?
AbstractNew exact solutions of the gravitational field equations for a homogeneous flat Friedmann-Robertson-Walker Universe filled with a causal bulk-viscous fluid with a bulk viscosity coefficient proportional to the Hubble function are obtained in the framework of the full causal Israel-Stewart-Hiscock (ISH) theory. The evolution equation of the Universe is reduced to a first kind Abel-type first-order differential equation and new classes of exact solutions of the field equations are generated from some particular solutions of this equation leading to two classes of general solutions of the Einstein field equations corresponding to particular values of the parameters entering in the physical model. The obtained solutions are represented mathematically in an exact parametric form and are interpreted physically as describing cosmological particle production. The evolution of the temperature, entropy, deceleration parameter, and bulk viscosity coefficient is also considered for each model. © 1998 American Institute of Physics.
Persistent Identifierhttp://hdl.handle.net/10722/91805
ISSN
2015 Impact Factor: 1.234
2015 SCImago Journal Rankings: 0.767
References

 

DC FieldValueLanguage
dc.contributor.authorMak, MKen_HK
dc.contributor.authorHarko, Ten_HK
dc.date.accessioned2010-09-17T10:27:08Z-
dc.date.available2010-09-17T10:27:08Z-
dc.date.issued1998en_HK
dc.identifier.citationJournal of Mathematical Physics, 1998, v. 39 n. 10, p. 5458-5476en_HK
dc.identifier.issn0022-2488en_HK
dc.identifier.urihttp://hdl.handle.net/10722/91805-
dc.description.abstractNew exact solutions of the gravitational field equations for a homogeneous flat Friedmann-Robertson-Walker Universe filled with a causal bulk-viscous fluid with a bulk viscosity coefficient proportional to the Hubble function are obtained in the framework of the full causal Israel-Stewart-Hiscock (ISH) theory. The evolution equation of the Universe is reduced to a first kind Abel-type first-order differential equation and new classes of exact solutions of the field equations are generated from some particular solutions of this equation leading to two classes of general solutions of the Einstein field equations corresponding to particular values of the parameters entering in the physical model. The obtained solutions are represented mathematically in an exact parametric form and are interpreted physically as describing cosmological particle production. The evolution of the temperature, entropy, deceleration parameter, and bulk viscosity coefficient is also considered for each model. © 1998 American Institute of Physics.en_HK
dc.languageengen_HK
dc.publisherAmerican Institute of Physics. The Journal's web site is located at http://ojps.aip.org/jmp/en_HK
dc.relation.ispartofJournal of Mathematical Physicsen_HK
dc.titleFull causal bulk-viscous cosmological modelsen_HK
dc.typeArticleen_HK
dc.identifier.emailHarko, TC:harko@hkucc.hku.hken_HK
dc.identifier.authorityHarko, TC=rp1333en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-0032354308en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0032354308&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume39en_HK
dc.identifier.issue10en_HK
dc.identifier.spage5458en_HK
dc.identifier.epage5476en_HK

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