Cosmological implications of 5-dimensional Brans–Dicke theory
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| Title: | Cosmological implications of 5-dimensional Brans–Dicke theory |
|---|---|
| Authors: | Qiang, Li-e1, Gong, Yan1,2, Ma, Yongge3, Chen, Xuelei1,4 xuelei@cosmology.bao.ac.cn |
| Source: | Physics Letters B. Nov2009, Vol. 681 Issue 3, p210-213. 4p. |
| Subjects: | Gravitational fields, Metaphysical cosmology, Dimensional analysis, Celestial mechanics, Scalar field theory, Acceleration (Mechanics), Cataclysmic variable stars, Coupling constants |
| Abstract: | Abstract: The five-dimensional Brans–Dicke theory naturally provides two scalar fields by the Killing reduction mechanism. These two scalar fields could account for the accelerated expansion of the universe. We test this model and constrain its parameter by using the type Ia supernova (SN Ia) data. We find that the best fit value of the 5-dimensional Brans–Dicke coupling constant is . This result is also consistent with other observations such as the baryon acoustic oscillation (BAO). [Copyright &y& Elsevier] |
| Copyright of Physics Letters B is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 44827591 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Cosmological implications of 5-dimensional Brans–Dicke theory – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Qiang%2C+Li-e%22">Qiang, Li-e</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Gong%2C+Yan%22">Gong, Yan</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Ma%2C+Yongge%22">Ma, Yongge</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Chen%2C+Xuelei%22">Chen, Xuelei</searchLink><relatesTo>1,4</relatesTo><i> xuelei@cosmology.bao.ac.cn</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Physics+Letters+B%22">Physics Letters B</searchLink>. Nov2009, Vol. 681 Issue 3, p210-213. 4p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Gravitational+fields%22">Gravitational fields</searchLink><br /><searchLink fieldCode="DE" term="%22Metaphysical+cosmology%22">Metaphysical cosmology</searchLink><br /><searchLink fieldCode="DE" term="%22Dimensional+analysis%22">Dimensional analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Celestial+mechanics%22">Celestial mechanics</searchLink><br /><searchLink fieldCode="DE" term="%22Scalar+field+theory%22">Scalar field theory</searchLink><br /><searchLink fieldCode="DE" term="%22Acceleration+%28Mechanics%29%22">Acceleration (Mechanics)</searchLink><br /><searchLink fieldCode="DE" term="%22Cataclysmic+variable+stars%22">Cataclysmic variable stars</searchLink><br /><searchLink fieldCode="DE" term="%22Coupling+constants%22">Coupling constants</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Abstract: The five-dimensional Brans–Dicke theory naturally provides two scalar fields by the Killing reduction mechanism. These two scalar fields could account for the accelerated expansion of the universe. We test this model and constrain its parameter by using the type Ia supernova (SN Ia) data. We find that the best fit value of the 5-dimensional Brans–Dicke coupling constant is . This result is also consistent with other observations such as the baryon acoustic oscillation (BAO). [Copyright &y& Elsevier] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Physics Letters B is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.physletb.2009.10.028 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 4 StartPage: 210 Subjects: – SubjectFull: Gravitational fields Type: general – SubjectFull: Metaphysical cosmology Type: general – SubjectFull: Dimensional analysis Type: general – SubjectFull: Celestial mechanics Type: general – SubjectFull: Scalar field theory Type: general – SubjectFull: Acceleration (Mechanics) Type: general – SubjectFull: Cataclysmic variable stars Type: general – SubjectFull: Coupling constants Type: general Titles: – TitleFull: Cosmological implications of 5-dimensional Brans–Dicke theory Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Qiang, Li-e – PersonEntity: Name: NameFull: Gong, Yan – PersonEntity: Name: NameFull: Ma, Yongge – PersonEntity: Name: NameFull: Chen, Xuelei IsPartOfRelationships: – BibEntity: Dates: – D: 02 M: 11 Text: Nov2009 Type: published Y: 2009 Identifiers: – Type: issn-print Value: 03702693 Numbering: – Type: volume Value: 681 – Type: issue Value: 3 Titles: – TitleFull: Physics Letters B Type: main |
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