Subaru/IPMU: Deepest Galaxy Map Finds Einstein's Theory Stands True
Posted: Wed May 11, 2016 4:48 pm
New Test by Deepest Galaxy Map Finds Einstein's Theory Stands True
Subaru Telescope | National Astronomical Observatory of Japan |
Kavli Institute for the Physics and Mathematics of the Universe | 2016 May 11
The Subaru FMOS galaxy redshift survey (FastSound).
IV. New constraint on gravity theory from redshift space distortions at z∼1.4 - Teppei Okumura et al
Subaru Telescope | National Astronomical Observatory of Japan |
Kavli Institute for the Physics and Mathematics of the Universe | 2016 May 11
[c][attachment=0]fig1e[1].jpg[/attachment][/c][hr][/hr]By using Fiber Multi-Object Spectrograph (FMOS) on the Subaru Telescope, an international team led by Japanese researchers has made a 3D map of 3000 galaxies 13 billion light years from Earth. Based on this comprehensive survey, the first of such a study at this great distance, the team was able to confirm that Einstein's general theory of relativity is still valid.
Since it was discovered in the late 1990s that the universe is expanding at an accelerated rate, scientists have been trying to explain why. The mysterious dark energy could be driving acceleration, or Einstein’s theory of general relativity, which says gravity warps space and time, could be breaking down.
To test Einstein’s theory, a team of researchers led by Kavli IPMU ... used FastSound Survey data on more than 3000 distant galaxies to analyze their velocities and clustering.
Their results indicated that even far into the universe, general relativity is valid, giving further support that the expansion of the universe could be explained by a cosmological constant, as proposed by Einstein in his theory of general relativity. ...
The Subaru FMOS galaxy redshift survey (FastSound).
IV. New constraint on gravity theory from redshift space distortions at z∼1.4 - Teppei Okumura et al
- Publications of the ASJ (online 26 Apr 2016) DOI: 10.1093/pasj/psw029
arXiv.org > astro-ph > arXiv:1511.08083 > 25 Nov 2015 (v1), 25 Mar 2016 (v2)