Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
The Dark Side of the Universe
Stockholm University, Faculty of Science, Department of Physics.
2005 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The dark side of the Universe presents astroparticle physics with its most outstanding challenge to date. As observational cosmology in recent years has reached a level of unprecedented accuracy, we have learned that there is very little in the Universe that we know much about, and very much about which we know very little. Even though dark matter and dark energy combined is believed to account for more than 90 percent of all energy in the observable Universe, we have no solid understanding of the nature or origin of these constituents.

In this thesis we focus on the possible connection between dark matter and extra spatial dimensions. A five-dimensional model of universal extra dimensions is reviewed, with emphasis on the particle dark matter candidate it contains in the form of the lightest Kaluza-Klein particle (LKP). We derive the expected spectrum of high energy gamma rays in such a model and find that it matches recent observations of the galactic center very well, for energies below the LKP mass. However, the mass required to fit the full range of data seems to be ruled out by the relic density bound. We then discuss the cosmological evolution of homogeneous extra dimensions and highlight the difficulties of stabilization in a matter dominated Universe.

Also included is a short study of the prospects of using high redshift supernovae to probe the nature of dark energy in the context of quintessence.

Place, publisher, year, edition, pages
Stockholm: Fysikum , 2005. , 78 p.
Keyword [en]
Astroparticle physics
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:su:diva-492ISBN: 91-7155-073-9 (print)OAI: oai:DiVA.org:su-492DiVA: diva2:194603
Public defence
2005-05-19, sal FD5, AlbaNova universitetscentrum, Roslagstullsbacken 21, Stockholm, 09:15
Opponent
Supervisors
Available from: 2005-04-30 Created: 2005-04-30Bibliographically approved
List of papers
1. Fitting inverse power-law quintessence models using the SNAP satellite
Open this publication in new window or tab >>Fitting inverse power-law quintessence models using the SNAP satellite
2002 In: Physical Review D, ISSN 1550-7998, Vol. 66, 02350- p.Article in journal (Refereed) Published
Identifiers
urn:nbn:se:su:diva-23805 (URN)
Note
Part of urn:nbn:se:su:diva-492Available from: 2005-04-30 Created: 2005-04-30Bibliographically approved
2. Cosmological evolution of universal extra dimensions
Open this publication in new window or tab >>Cosmological evolution of universal extra dimensions
2003 In: Physical Review D, ISSN 1550-7998, Vol. 68, 063516- p.Article in journal (Refereed) Published
Identifiers
urn:nbn:se:su:diva-23806 (URN)
Note
Part of urn:nbn:se:su:diva-492Available from: 2005-04-30 Created: 2005-04-30Bibliographically approved
3. Can homogeneous extra dimensions be stabilized during matter domination?
Open this publication in new window or tab >>Can homogeneous extra dimensions be stabilized during matter domination?
2003 In: JCAP, ISSN 1475-7516, Vol. 10, 006- p.Article in journal (Refereed) Published
Identifiers
urn:nbn:se:su:diva-23807 (URN)
Note
Part of urn:nbn:se:su:diva-492Available from: 2005-04-30 Created: 2005-04-30Bibliographically approved
4. Gamma rays from Kaluza-Klein dark matter
Open this publication in new window or tab >>Gamma rays from Kaluza-Klein dark matter
2005 In: Physical Review Letters, ISSN 1031-9007, Vol. 94, 131301- p.Article in journal (Refereed) Published
Identifiers
urn:nbn:se:su:diva-23808 (URN)
Note
Part of urn:nbn:se:su:diva-492Available from: 2005-04-30 Created: 2005-04-30Bibliographically approved
5. Two-photon annihilation of Kaluza-Klein dark matter
Open this publication in new window or tab >>Two-photon annihilation of Kaluza-Klein dark matter
2005 In: JCAP, ISSN 1475-7516, Vol. 04, 004- p.Article in journal (Refereed) Published
Identifiers
urn:nbn:se:su:diva-23809 (URN)
Note
Part of urn:nbn:se:su:diva-492Available from: 2005-04-30 Created: 2005-04-30Bibliographically approved

Open Access in DiVA

No full text

By organisation
Department of Physics
Physical Sciences

Search outside of DiVA

GoogleGoogle Scholar

isbn
urn-nbn

Altmetric score

isbn
urn-nbn
Total: 251 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf