Abstract
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.
Original language | English |
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Pages (from-to) | 2192-2198 |
Journal | Physics Letters. Section A: General, Atomic and Solid State Physics |
Volume | 382 |
Issue number | 33 |
DOIs | |
Publication status | Published - 2018 |
Keywords
- Atomic clocks
- Equivalence Principle
- Gravitational redshift
- RadioAstron