VS
V.A. Stepanyants
info
Please Note
<p>This page displays the records of the person named above and is not linked to a unique person identifier. This record may need to be merged to a profile.</p>
1 records found
1
RadioAstron gravitational redshift experiment
Status update
Conference paper
(2016)
-
D.A. Litvinov, U. Bach, R Haas, V.L. Kauts, B.Z. Kanevsky, A.V. Kovalenko, G Kronschnabl, V.V. Kulagin, Maria Lindqvist, G Molera Calves, A. Neidhardt, C. Plotz, N. Bartel, S. V. Pogrebenko, N.K. Porayko, V.N. Rudenko, K. V. Sokolovsky, A.I. Smirnov, V.A. Stepanyants, J. Yang, M.V. Zakhvatkin, K.G. Belousov, M. Bietenholz, A.V. Biriukov, G Cimo, D. A. Duev, L. I. Gurvits, A.V. Gusev
A test of a cornerstone of general relativity, the gravitational redshift effect, is currently
being conducted with the RadioAstron spacecraft, which is on a highly eccentric orbit
around Earth. Using ground radio telescopes to record the spacecraft signal, synchronized
to its ultra-stable on-board H-maser, we can probe the varying flow of time on board with
unprecedented accuracy. The observations performed so far, currently being analyzed,
have already allowed us to measure the effect with a relative accuracy of 4 × 10−4
. We
expect to reach 2.5×10−5 with additional observations in 2016, an improvement of almost
a magnitude over the 40-year old result of the GP-A mission.
...
A test of a cornerstone of general relativity, the gravitational redshift effect, is currently
being conducted with the RadioAstron spacecraft, which is on a highly eccentric orbit
around Earth. Using ground radio telescopes to record the spacecraft signal, synchronized
to its ultra-stable on-board H-maser, we can probe the varying flow of time on board with
unprecedented accuracy. The observations performed so far, currently being analyzed,
have already allowed us to measure the effect with a relative accuracy of 4 × 10−4
. We
expect to reach 2.5×10−5 with additional observations in 2016, an improvement of almost
a magnitude over the 40-year old result of the GP-A mission.