Searching for decaying axionlike dark matter from clusters of galaxies.
| Title: | Searching for decaying axionlike dark matter from clusters of galaxies. |
|---|---|
| Authors: | Riemer-Sørensen S; Dark Cosmology Centre, Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, DK-2100 Copenhagen, Denmark. signe@dark-cosmology.dk; Zioutas K; Hansen SH; Pedersen K; Dahle H; Liolios A |
| Source: | Physical review letters [Phys Rev Lett] 2007 Sep 28; Vol. 99 (13), pp. 131301. Date of Electronic Publication: 2007 Sep 28. |
| Publication Type: | Journal Article |
| Language: | English |
| Journal Info: | Publisher: American Physical Society Country of Publication: United States NLM ID: 0401141 Publication Model: Print-Electronic Cited Medium: Print ISSN: 0031-9007 (Print) Linking ISSN: 00319007 NLM ISO Abbreviation: Phys Rev Lett Subsets: PubMed not MEDLINE |
| Imprint Name(s): | Original Publication: New York : American Physical Society |
| Abstract: | We constrain the lifetime of radiatively decaying dark matter in clusters of galaxies inspired by generic Kaluza-Klein axions, which have been invoked as a possible explanation for the solar coronal x-ray emission. These particles can be produced inside stars and remain confined by the gravitational potential of clusters. By analyzing x-ray observations of merging clusters, where gravitational lensing observations have identified massive, baryon poor structures, we derive the first cosmological lifetime constraint on this kind of particles of tau > or = 10(23) sec. |
| Entry Date(s): | Date Created: 20071013 Date Completed: 20080129 Latest Revision: 20071012 |
| Update Code: | 20260130 |
| DOI: | 10.1103/PhysRevLett.99.131301 |
| PMID: | 17930573 |
| Database: | MEDLINE |
Journal Article