Publicación:
CROSSING THE PHANTOM DIVIDE WITH A CLASSICAL DIRAC FIELD

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dc.creatorYOSELIN MAURICIO CATALDO MONSALVES
dc.date2011
dc.date.accessioned2025-01-10T14:35:36Z
dc.date.available2025-01-10T14:35:36Z
dc.date.issued2011
dc.description.abstractIN THIS PAPER WE CONSIDER A SPATIALLY FLAT FRIEDMANN-ROBERTSON-WALKER (FRW) COSMOLOGICAL MODEL WITH COSMOLOGICAL CONSTANT, CONTAINING A STIFF FLUID AND A CLASSICAL DIRAC FIELD. THE PROPOSED COSMOLOGICAL SCENARIO DESCRIBES THE EVOLUTION OF EFFECTIVE DARK MATTER AND DARK ENERGY COMPONENTS REPRODUCING, WITH THE HELP OF THAT EFFECTIVE MULTIFLUID CONFIGURATION, THE QUINTESSENTIAL BEHAVIOR. WE FIND THE VALUE OF THE SCALE FACTOR WHERE THE EFFECTIVE DARK ENERGY COMPONENT CROSSES THE PHANTOM DIVIDE. THE MODEL WE INTRODUCE, WHICH CAN BE CONSIDERED AS A MODIFIED ?CDM ONE, IS CHARACTERIZED BY A SET OF PARAMETERS WHICH MAY BE CONSTRAINED BY THE ASTROPHYSICAL OBSERVATIONS AVAILABLE UP TO DATE.
dc.formatapplication/pdf
dc.identifier.doi10.1007/s10509-010-0592-7
dc.identifier.issn1572-946X
dc.identifier.issn0004-640X
dc.identifier.urihttps://repositorio.ubiobio.cl/handle/123456789/8105
dc.languagespa
dc.publisherASTROPHYSICS AND SPACE SCIENCE
dc.relation.uri10.1007/s10509-010-0592-7
dc.rightsPUBLICADA
dc.titleCROSSING THE PHANTOM DIVIDE WITH A CLASSICAL DIRAC FIELD
dc.typeARTÍCULO
dspace.entity.typePublication
ubb.EstadoPUBLICADA
ubb.Otra ReparticionFACULTAD DE CIENCIAS
ubb.SedeCONCEPCIÓN
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