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Effect of chameleons on the mass of a galaxy cluster
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Theoretical Astrophysics.
2019 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Chameleons are scalar fields coming from modied gravity theories and can be possible explanations for Dark Energy. They cause a fifth force and have a screening mechanism which allows this force to avoid solar system constraints. In this thesis, astrophysical consequences of the potential presence of the chameleon field will be studied. More precisely, the difference between the hydrostatical and the weak lensing mass of galaxy clusters due to the effect of the chameleon fifth force is discussed.

Place, publisher, year, edition, pages
2019. , p. 63
Series
FYSAST ; FYSMAS1088
Keywords [en]
Chameleons, modified gravity, galaxy cluster
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:uu:diva-378153OAI: oai:DiVA.org:uu-378153DiVA, id: diva2:1293065
Educational program
Master Programme in Physics
Supervisors
Examiners
Available from: 2019-03-13 Created: 2019-03-02 Last updated: 2019-04-11Bibliographically approved

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fulltext(484 kB)49 downloads
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CiteExportLink to record
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