arxiv: 1710.10074 · v1 · pith:VA3XPNOBnew · submitted 2017-10-27 · 🌀 gr-qc · astro-ph.IM

Probing the gravitational redshift with an Earth-orbiting satellite

D.A. Litvinov , V.N. Rudenko , A.V. Alakoz , U. Bach , N. Bartel , A.V. Belonenko , K.G. Belousov , M. Bietenholz

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A.V. Biriukov R. Carman G. Cim\'o C. Courde D. Dirkx D.A. Duev A.I. Filetkin G. Granato L.I. Gurvits A.V. Gusev R. Haas G. Herold A. Kahlon B.Z. Kanevsky V.L. Kauts G.D. Kopelyansky A.V. Kovalenko G. Kronschnabl V.V. Kulagin A.M. Kutkin M.L indqvist J.E.J. Lovell H. Mariey J. McCallum G. Molera-Calv\'es C. Moore K. Moore A. Neidhardt C. Pl\"otz S.V. Pogrebenko A. Pollard N.K. Porayko J. Quick A.I. Smirnov K.V. Sokolovsky V.A. Stepanyants J.-M. Torre P. de Vicente J. Yang M.V. Zakhvatkin

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classification 🌀 gr-qc astro-ph.IM

keywords gravitationalredshiftsatellitegravityproberadioastronaccuracyagree

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We present an approach to testing the gravitational redshift effect using the RadioAstron satellite. The experiment is based on a modification of the Gravity Probe A scheme of nonrelativistic Doppler compensation and benefits from the highly eccentric orbit and ultra-stable atomic hydrogen maser frequency standard of the RadioAstron satellite. Using the presented techniques we expect to reach an accuracy of the gravitational redshift test of order $10^{-5}$, a magnitude better than that of Gravity Probe A. Data processing is ongoing, our preliminary results agree with the validity of the Einstein Equivalence Principle.

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Probing the gravitational redshift with an Earth-orbiting satellite

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