Small scale structures in coupled scalar field dark matter
We investigate structure formation for ultra-light scalar field dark matter coupled to quintessence, in particular the cosmon-bolon system. The linear power spectrum is computed by a numerical solution of the coupled field equations. We infer the substructure abundance within a Milky Way-like halo. Es...
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| Hauptverfasser: | , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
13October2014
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| In: |
Physics letters
Year: 2014, Jahrgang: 738, Pages: 418-423 |
| ISSN: | 1873-2445 |
| DOI: | 10.1016/j.physletb.2014.10.012 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.physletb.2014.10.012 Verlag, lizenzpflichtig, Volltext: https://linkinghub.elsevier.com/retrieve/pii/S0370269314007357 
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| Verfasserangaben: | J. Beyer, C. Wetterich |
| Zusammenfassung: | We investigate structure formation for ultra-light scalar field dark matter coupled to quintessence, in particular the cosmon-bolon system. The linear power spectrum is computed by a numerical solution of the coupled field equations. We infer the substructure abundance within a Milky Way-like halo. Estimates of dark halo abundances from recent galaxy surveys imply a lower bound on the bolon mass of about 9 × 10−22 eV. This seems to exclude a possible detection of scalar field dark matter through time variation in pulsar timing signals in the near future. |
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| Beschreibung: | Gesehen am 11.08.2020 |
| Beschreibung: | Online Resource |
| ISSN: | 1873-2445 |
| DOI: | 10.1016/j.physletb.2014.10.012 |