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New Constraints on Spatial Variations of the Fine Structure Constant from Clusters of Galaxies
- Source :
- Universe, Vol 2, Iss 4, p 34 (2016)
- Publication Year :
- 2016
- Publisher :
- MDPI AG, 2016.
-
Abstract
- We have constrained the spatial variation of the fine structure constant using multi-frequency measurements of the thermal Sunyaev-Zeldovich effect of 618 X-ray selected clusters. Although our results are not competitive with the ones from quasar absorption lines, we improved by a factor 10 and ∼2.5 previous results from Cosmic Microwave Background power spectrum and from galaxy clusters, respectively.
Details
- Language :
- English
- ISSN :
- 22181997
- Volume :
- 2
- Issue :
- 4
- Database :
- Directory of Open Access Journals
- Journal :
- Universe
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.32eca0063a54460797138814db9dda7a
- Document Type :
- article
- Full Text :
- https://doi.org/10.3390/universe2040034