General relativity support from the double pulsar

Treschman, Keith John (2015) General relativity support from the double pulsar. International Journal of Physical Sciences, 10 (15). pp. 456-465. ISSN 1992-1950

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Abstract

After the final publication of the Theory of General Relativity by Albert Einstein in 1916, experimental
confirmation rested on three astronomical tests. These were the amount of bending of starlight at the edge of the Sun, the change in frequency of light emanating from the gravitational field of the Sun and an explanation in terms of the theory of a remnant quantity in the perihelion advance of Mercury which had been calculated previously. The field of activity then was sparse and Quantum Mechanics attracted many scientists to its realm. However, a proliferation of renewed interest emerged 50 years on from
1916 with new thinking, improved instrumentation, the advent of spacecraft and the discovery of a number of exotic objects. The previous tests had been within the solar system. Now, there could be a transition from a weak to strong gravitational field testing. Neutron stars and pulsars were proposed based on ideas inherent within Einstein’s conjecture as explanations for otherwise mysterious radio signals. In 2003, the advent of a two pulsars in mutual orbit allowed astrophysicists to delve into more precise tests of Einstein’s theory. One of the parameters measured with this double pulsar has agreed
with General Relativity to the 0.05% level. Three others are different from predictions by 1.4, 0.68 and 5.5%. Testing of these other parameters over a longer period of time promises to distinguish the accuracy between Einstein’s ideas and concepts from other scientists.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Access to Published version in accordance with the copyright policy of the publisher. Creative Commons Attribution License.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Agricultural, Computational and Environmental Sciences
Date Deposited: 19 Apr 2016 23:50
Last Modified: 15 Mar 2017 04:45
Uncontrolled Keywords: general relativity; neutron star; pulsar; double pulsar
Fields of Research : 01 Mathematical Sciences > 0105 Mathematical Physics > 010504 Mathematical Aspects of General Relativity
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970102 Expanding Knowledge in the Physical Sciences
Identification Number or DOI: 10.5897/IJPS2015.4382
URI: http://eprints.usq.edu.au/id/eprint/27596

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