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Article: Physics of dark energy particles

TitlePhysics of dark energy particles
Authors
KeywordsDark Energy
Dark Energy Particles
Gravitation
Minimum Mass
Issue Date2008
PublisherSpringer New York LLC. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=0015-9018
Citation
Foundations of Physics, 2008, v. 38 n. 3, p. 216-227 How to Cite?
AbstractWe consider the astrophysical and cosmological implications of the existence of a minimum density and mass due to the presence of the cosmological constant. If there is a minimum length in nature, then there is an absolute minimum mass corresponding to a hypothetical particle with radius of the order of the Planck length. On the other hand, quantum mechanical considerations suggest a different minimum mass. These particles associated with the dark energy can be interpreted as the "quanta" of the cosmological constant. We study the possibility that these particles can form stable stellar-type configurations through gravitational condensation, and their Jeans and Chandrasekhar masses are estimated. From the requirement of the energetic stability of the minimum density configuration on a macroscopic scale one obtains a mass of the order of 1055 g, of the same order of magnitude as the mass of the universe. This mass can also be interpreted as the Jeans mass of the dark energy fluid. Furthermore we present a representation of the cosmological constant and of the total mass of the universe in terms of 'classical' fundamental constants. © 2007 Springer Science+Business Media, LLC.
Persistent Identifierhttp://hdl.handle.net/10722/91816
ISSN
2015 Impact Factor: 1.018
2015 SCImago Journal Rankings: 0.602
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorBöhmer, CGen_HK
dc.contributor.authorHarko, Ten_HK
dc.date.accessioned2010-09-17T10:27:27Z-
dc.date.available2010-09-17T10:27:27Z-
dc.date.issued2008en_HK
dc.identifier.citationFoundations of Physics, 2008, v. 38 n. 3, p. 216-227en_HK
dc.identifier.issn0015-9018en_HK
dc.identifier.urihttp://hdl.handle.net/10722/91816-
dc.description.abstractWe consider the astrophysical and cosmological implications of the existence of a minimum density and mass due to the presence of the cosmological constant. If there is a minimum length in nature, then there is an absolute minimum mass corresponding to a hypothetical particle with radius of the order of the Planck length. On the other hand, quantum mechanical considerations suggest a different minimum mass. These particles associated with the dark energy can be interpreted as the "quanta" of the cosmological constant. We study the possibility that these particles can form stable stellar-type configurations through gravitational condensation, and their Jeans and Chandrasekhar masses are estimated. From the requirement of the energetic stability of the minimum density configuration on a macroscopic scale one obtains a mass of the order of 1055 g, of the same order of magnitude as the mass of the universe. This mass can also be interpreted as the Jeans mass of the dark energy fluid. Furthermore we present a representation of the cosmological constant and of the total mass of the universe in terms of 'classical' fundamental constants. © 2007 Springer Science+Business Media, LLC.en_HK
dc.languageengen_HK
dc.publisherSpringer New York LLC. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=0015-9018en_HK
dc.relation.ispartofFoundations of Physicsen_HK
dc.subjectDark Energyen_HK
dc.subjectDark Energy Particlesen_HK
dc.subjectGravitationen_HK
dc.subjectMinimum Massen_HK
dc.titlePhysics of dark energy particlesen_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.doi10.1007/s10701-007-9199-4en_HK
dc.identifier.scopuseid_2-s2.0-40349089688en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-40349089688&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume38en_HK
dc.identifier.issue3en_HK
dc.identifier.spage216en_HK
dc.identifier.epage227en_HK
dc.identifier.isiWOS:000253754100002-

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