Linked Life Data

21956329

Source:http://linkedlifedata.com/resource/pubmed/id/21956329

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7366
pubmed:dateCreated
2011-9-29
pubmed:abstractText
The theoretical framework of cosmology is mainly defined by gravity, of which general relativity is the current model. Recent tests of general relativity within the Lambda Cold Dark Matter (?CDM) model have found a concordance between predictions and the observations of the growth rate and clustering of the cosmic web. General relativity has not hitherto been tested on cosmological scales independently of the assumptions of the ?CDM model. Here we report an observation of the gravitational redshift of light coming from galaxies in clusters at the 99 per cent confidence level, based on archival data. Our measurement agrees with the predictions of general relativity and its modification created to explain cosmic acceleration without the need for dark energy (the f(R) theory), but is inconsistent with alternative models designed to avoid the presence of dark matter.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Sep
pubmed:issn
1476-4687
pubmed:author
pubmed:copyrightInfo
© 2011 Macmillan Publishers Limited. All rights reserved
pubmed:issnType
Electronic
pubmed:day
29
pubmed:volume
477
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
567-9
pubmed:year
2011
pubmed:articleTitle
Gravitational redshift of galaxies in clusters as predicted by general relativity.
pubmed:affiliation
Dark Cosmology Centre, Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, DK-2100 Copenhagen Ø, Denmark. wojtak@dark-cosmology.dk
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't