New Constraints on Spatial Variations of the Fine Structure Constant from Clusters of Galaxies
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...
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MDPI AG
2016-12-01
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| Series: | Universe |
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| Online Access: | http://www.mdpi.com/2218-1997/2/4/34 |
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doaj-32eca0063a54460797138814db9dda7a2020-11-24T23:24:12ZengMDPI AGUniverse2218-19972016-12-01243410.3390/universe2040034universe2040034New Constraints on Spatial Variations of the Fine Structure Constant from Clusters of GalaxiesIvan De Martino0Carlos J. A. P. Martins1Harald Ebeling2Dale Kocevski3Faculty of Science and Technology, Department of Theoretical Physics and History of Science, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940 Leioa, SpainCentro de Astrofisica da Universidade do Porto, Rua das Estrelas s/n, 4150-762 Porto, PortugalInstitute for Astronomy, University of Hawaii, Honolulu, HI 96822, USADepartment of Physics and Astronomy, Colby College, Waterville, ME 04901, USAWe 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.http://www.mdpi.com/2218-1997/2/4/34cluster of galaxiesCosmic Microwave Backgroundvarying fine structure constantSunyaev-Zeldovich effect |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Ivan De Martino Carlos J. A. P. Martins Harald Ebeling Dale Kocevski |
| spellingShingle |
Ivan De Martino Carlos J. A. P. Martins Harald Ebeling Dale Kocevski New Constraints on Spatial Variations of the Fine Structure Constant from Clusters of Galaxies Universe cluster of galaxies Cosmic Microwave Background varying fine structure constant Sunyaev-Zeldovich effect |
| author_facet |
Ivan De Martino Carlos J. A. P. Martins Harald Ebeling Dale Kocevski |
| author_sort |
Ivan De Martino |
| title |
New Constraints on Spatial Variations of the Fine Structure Constant from Clusters of Galaxies |
| title_short |
New Constraints on Spatial Variations of the Fine Structure Constant from Clusters of Galaxies |
| title_full |
New Constraints on Spatial Variations of the Fine Structure Constant from Clusters of Galaxies |
| title_fullStr |
New Constraints on Spatial Variations of the Fine Structure Constant from Clusters of Galaxies |
| title_full_unstemmed |
New Constraints on Spatial Variations of the Fine Structure Constant from Clusters of Galaxies |
| title_sort |
new constraints on spatial variations of the fine structure constant from clusters of galaxies |
| publisher |
MDPI AG |
| series |
Universe |
| issn |
2218-1997 |
| publishDate |
2016-12-01 |
| description |
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. |
| topic |
cluster of galaxies Cosmic Microwave Background varying fine structure constant Sunyaev-Zeldovich effect |
| url |
http://www.mdpi.com/2218-1997/2/4/34 |
| work_keys_str_mv |
AT ivandemartino newconstraintsonspatialvariationsofthefinestructureconstantfromclustersofgalaxies AT carlosjapmartins newconstraintsonspatialvariationsofthefinestructureconstantfromclustersofgalaxies AT haraldebeling newconstraintsonspatialvariationsofthefinestructureconstantfromclustersofgalaxies AT dalekocevski newconstraintsonspatialvariationsofthefinestructureconstantfromclustersofgalaxies |
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