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Article: Is dark matter an extra-dimensional effect?

TitleIs dark matter an extra-dimensional effect?
Authors
KeywordsDark matter
Extra dimensions
Geodesic motion
Issue Date2009
PublisherWorld Scientific Publishing Co Pte Ltd. The Journal's web site is located at http://www.worldscinet.com/mpla/mpla.shtml
Citation
Modern Physics Letters A, 2009, v. 24 n. 9, p. 667-682 How to Cite?
AbstractWe investigate the possibility that the observed behavior of test particles outside galaxies, which is usually explained by assuming the presence of dark matter, is the result of the dynamical evolution of particles in higher dimensional spacetimes. Hence, dark matter may be a direct consequence of the presence of an extra force, generated by the presence of extra dimensions, which modifies the dynamic law of motion, but does not change the intrinsic properties of the particles, like, for example, the mass (inertia). We discuss in some detail several possible particular forms for the extra force, and the acceleration law of the particles is derived. Therefore, the constancy of the galactic rotation curves may be considered as an empirical evidence for the existence of the extra dimensions. © 2009 World Scientific Publishing Company.
Persistent Identifierhttp://hdl.handle.net/10722/125268
ISSN
2015 Impact Factor: 1.116
2015 SCImago Journal Rankings: 0.583

 

DC FieldValueLanguage
dc.contributor.authorKahil, MEen_HK
dc.contributor.authorHarko, TCen_HK
dc.date.accessioned2010-10-31T11:21:06Z-
dc.date.available2010-10-31T11:21:06Z-
dc.date.issued2009en_HK
dc.identifier.citationModern Physics Letters A, 2009, v. 24 n. 9, p. 667-682en_HK
dc.identifier.issn0217-7323en_HK
dc.identifier.urihttp://hdl.handle.net/10722/125268-
dc.description.abstractWe investigate the possibility that the observed behavior of test particles outside galaxies, which is usually explained by assuming the presence of dark matter, is the result of the dynamical evolution of particles in higher dimensional spacetimes. Hence, dark matter may be a direct consequence of the presence of an extra force, generated by the presence of extra dimensions, which modifies the dynamic law of motion, but does not change the intrinsic properties of the particles, like, for example, the mass (inertia). We discuss in some detail several possible particular forms for the extra force, and the acceleration law of the particles is derived. Therefore, the constancy of the galactic rotation curves may be considered as an empirical evidence for the existence of the extra dimensions. © 2009 World Scientific Publishing Company.-
dc.languageengen_HK
dc.publisherWorld Scientific Publishing Co Pte Ltd. The Journal's web site is located at http://www.worldscinet.com/mpla/mpla.shtmlen_HK
dc.relation.ispartofModern Physics Letters Aen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectDark matter-
dc.subjectExtra dimensions-
dc.subjectGeodesic motion-
dc.titleIs dark matter an extra-dimensional effect?en_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0217-7323&volume=24&issue=9&spage=667&epage=682&date=2009&atitle=Is+dark+matter+an+extra-dimensional+effect?en_HK
dc.identifier.emailKahil, ME: kahil@aucegypt.eduen_HK
dc.identifier.emailHarko, TC: harko@HKUCC.hku.hk-
dc.identifier.authorityHarko, TC=rp01333en_HK
dc.description.naturepostprint-
dc.identifier.doi10.1142/S0217732309028667-
dc.identifier.scopuseid_2-s2.0-65249169254-
dc.identifier.hkuros169440en_HK
dc.identifier.volume24en_HK
dc.identifier.issue9-
dc.identifier.spage667en_HK
dc.identifier.epage682en_HK

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