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Probing the gravitational redshift with an Earth-orbiting satellite

Litvinov, DA, Rudenko, VN, Alakoz, AV, Bach, U, Bartel, N, Belonenko, AV, Belousov, KG, Bietenholz, M, Biriukov, AV, Carman, R, Cimo, G, Courde, C, Dirkx, D, Duev, DA, Filetkin, AI, Granato, G, Gurvits, LI, Gusev, AV, Haas, R, Herold, G, Kahlon, A, Kanevsky, BZ, Kauts, VL, Kopelyansky, GD, Kovalenko, AV, Kronschnabl, G, Kulagin, VV, Kutkin, AM, Lindqvist, M, Lovell, JEJ ORCID: 0000-0001-5273-9817, Mariey, H, McCallum, J ORCID: 0000-0002-0233-6937, Molera Calves, G, Moore, C, Moore, K, Neidhardt, A, Plotz, C, Pogrebenko, SV, Pollard, A, Porayko, NK, Quick, J, Smirnov, AI, Sokolovsky, KV, Stepanyants, VA, Torre, JM, de Vicente, P, Yang, J and Zakhvatkin, MV 2017 , 'Probing the gravitational redshift with an Earth-orbiting satellite' , Physics Letters, Section A: General, Atomic and Solid State Physics, vol. 382, no. 33 , pp. 2192-2198 , doi: 10.1016/j.physleta.2017.09.014.

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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.

Item Type: Article
Authors/Creators:Litvinov, DA and Rudenko, VN and Alakoz, AV and Bach, U and Bartel, N and Belonenko, AV and Belousov, KG and Bietenholz, M and Biriukov, AV and Carman, R and Cimo, G and Courde, C and Dirkx, D and Duev, DA and Filetkin, AI and Granato, G and Gurvits, LI and Gusev, AV and Haas, R and Herold, G and Kahlon, A and Kanevsky, BZ and Kauts, VL and Kopelyansky, GD and Kovalenko, AV and Kronschnabl, G and Kulagin, VV and Kutkin, AM and Lindqvist, M and Lovell, JEJ and Mariey, H and McCallum, J and Molera Calves, G and Moore, C and Moore, K and Neidhardt, A and Plotz, C and Pogrebenko, SV and Pollard, A and Porayko, NK and Quick, J and Smirnov, AI and Sokolovsky, KV and Stepanyants, VA and Torre, JM and de Vicente, P and Yang, J and Zakhvatkin, MV
Keywords: RadioAstron, gravitational redshift, equivalence principle, atomic clocks
Journal or Publication Title: Physics Letters, Section A: General, Atomic and Solid State Physics
Publisher: Pergamon Press
ISSN: 0375-9601
DOI / ID Number: 10.1016/j.physleta.2017.09.014
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Copyright 2017 Elsevier B.V.

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