A precise extragalactic test of General Relativity-Reference-Cited by-同舟云学术

A precise extragalactic test of General Relativity

Published:2018-06-22 Issue:6395 Volume:360 Page:1342-1346
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Collett Thomas E.¹^ORCID,Oldham Lindsay J.²^ORCID,Smith Russell J.³,Auger Matthew W.²,Westfall Kyle B.¹⁴^ORCID,Bacon David¹^ORCID,Nichol Robert C.¹,Masters Karen L.¹⁵^ORCID,Koyama Kazuya¹^ORCID,van den Bosch Remco⁶^ORCID

Affiliation:

1. Institute of Cosmology and Gravitation, University of Portsmouth, Burnaby Road, Portsmouth PO1 3FX, UK.

2. Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK.

3. Centre for Extragalactic Astronomy, University of Durham, Durham DH1 3LE, UK.

4. University of California Observatories–Lick Observatory, University of California–Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA.

5. Department of Physics and Astronomy, Haverford College, 370 Lancaster Avenue, Haverford, PA 19041, USA.

6. Max Planck Institute for Astronomy, Königstuhl 17, 69117 Heidelberg, Germany.

Abstract

Testing General Relativity on galaxy scales Einstein's theory of gravity, General Relativity (GR), has been tested precisely within the Solar System. However, it has been difficult to test GR on the scale of an individual galaxy. Collett et al. exploited a nearby gravitational lens system, in which light from a distant galaxy (the source) is bent by a foreground galaxy (the lens). Mass distribution in the lens was compared with the curvature of space-time around the lens, independently determined from the distorted image of the source. The result supports GR and eliminates some alternative theories of gravity. Science , this issue p. 1342

Funder

University of Portsmouth

Science and Technology Facilities Council

European Research Council

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference64 articles.

1. Planck2015 results

2. One gravitational potential or two? Forecasts and tests

3. Models off(R)cosmic acceleration that evade solar system tests