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Effects of cosmology on solar and stellar systems


Sereno, M; Jetzer, P (2008). Effects of cosmology on solar and stellar systems. In: Baryshev, Y; Taganov, I N; Teerikorpi, P. Practical Cosmology : Proceedings of the International Conference "Problems of Practical Cosmology", 23-27 June 2008, St.-Petersburg, Russia (Vol. 1). Sankt Petersburg, RU: Russkoe geograficheskoe obshchestvo = Russian Geographical Society, 211-214.

Abstract

The gravitational action of either dark energy or a smooth matter component filling in the universe can affect the orbits in a stellar system. Changes are related to the acceleration of the cosmological scale size. Actual bounds on the cosmological decelera-tion parameters from accurate astrometric data fall short of ten orders of magnitude with respect to estimates from observational cosmology but future radio-ranging measurements of outer planets in the Solar system could improve actual bounds by five orders of magnitude. Limits on either local dark matter or deviations from the gravitational Newton's law can be derived as well.

Abstract

The gravitational action of either dark energy or a smooth matter component filling in the universe can affect the orbits in a stellar system. Changes are related to the acceleration of the cosmological scale size. Actual bounds on the cosmological decelera-tion parameters from accurate astrometric data fall short of ten orders of magnitude with respect to estimates from observational cosmology but future radio-ranging measurements of outer planets in the Solar system could improve actual bounds by five orders of magnitude. Limits on either local dark matter or deviations from the gravitational Newton's law can be derived as well.

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Additional indexing

Item Type:Book Section, not refereed, original work
Communities & Collections:07 Faculty of Science > Institute for Computational Science
Dewey Decimal Classification:530 Physics
Language:English
Date:2008
Deposited On:10 Mar 2009 20:33
Last Modified:05 Apr 2016 13:08
Publisher:Russkoe geograficheskoe obshchestvo = Russian Geographical Society
ISBN:9785902632061
Additional Information:Copyright: Russian Geographical Society
Official URL:http://ppc08.astro.spbu.ru/materials/thesis_pdf/31-sereno.pdf
Related URLs:http://ppc08.astro.spbu.ru/ (Organisation)

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