The age problem and growing of structures for open system cosmology

dc.creator	Campos M. de
dc.creator	Tomimura N.A.
dc.date	2001
dc.date.accessioned	2013-05-30T01:09:18Z
dc.date.available	2013-05-30T01:09:18Z
dc.date.issued	2013-05-30
dc.identifier	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332001000300019
dc.identifier	http://www.doaj.org/doaj?func=openurl&genre=article&issn=01039733&date=2001&volume=31&issue=3&spage=468
dc.identifier.uri	http://koha.mediu.edu.my:8181/jspui/handle/123456789/3260
dc.description	A new equation for the density contrast is derived in the framework of reexamined Newtonian cosmology if we take into account adiabatic matter creation in the universe. The age of the universe and the reach of non linear regime of the density contrast are usually treated separately in the literature and this may leadtocontroversial conclusions regarding the most adequate scenario to describe the universe. We relate the age of the universe and the growing mode of the density contrast by introducing a variable xi that relates both of them, so that both aspects are treated simultaneously. We apply this procedure to the Friedmann type model where the source of particle production is psi = 3nbetaH.
dc.publisher	Sociedade Brasileira de Física
dc.source	Brazilian Journal of Physics
dc.title	The age problem and growing of structures for open system cosmology

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