Sergei Kopeikin (born April 10, 1956) is a USSR-born theoretical physicist and astronomer presently living and working in the United States, where he holds the position of Professor of Physics at the University of Missouri in Columbia, Missouri. He specializes in the theoretical and experimental study of gravity and general relativity. He is also an expert in the field of the astronomical reference frames and time metrology. His general relativistic theory of the Post-Newtonian reference frames which he had worked out along with Victor A. Brumberg, was adopted in 2000 by the resolutions of the International Astronomical Union as a standard for reduction of ground-based astronomical observation.
A computer program Tempo2 used to analyze radio observations of pulsars,[1][2] includes several effects predicted by S. Kopeikin that are important for measuring parameters of the binary pulsars,[3][4][5][6]
for testing general relativity,[7][8] and for detection of gravitational waves of ultra-low frequency.[9] Sergei Kopeikin has worked out a complete post-Newtonian theory of equations of motion of N extended bodies in scalar-tensor theory of gravity with all mass and spinmultipole moments of arbitrary order [10][11] and derived the Lagrangian of the relativistic N-body problem.[12]
Associate Editor: Frontiers in Astrophysics and Space Sciences
Editorial Board Member: Geodesy and Geodynamics
In September 2002, S. Kopeikin led a team which conducted a high-precision VLBI experiment to measure the fundamental speed of gravity,[13][14] thus, confirming the Einstein's prediction on the relativistic nature of gravitational field and its finite speed of propagation.[15]
He has been married to Zoia Kopeikina (daughter of Solomon Borisovich Pikelner) since 1980, they have four daughters, four granddaughters and three grandsons. As of December 2019 the family lives in Columbia, Missouri and Texas.
Bibliometric informationedit
Prof. Kopeikin has published 198 scientific papers and 2 books. He was an editor of two other books on advances in relativistic celestial mechanics. According to Google Scholar Citations program, the h-index of S.M. Kopeikin is 40, his i10-index is 93, while the total number of citations is 5434.
As of December 2023, NASA ADS returns for him an h-index of 32, while his tori[23] and riq[23] indices are 52.0 and 180, respectively.
Referencesedit
^G. B. Hobbs; R. T. Edwards; R. N. Manchester (2006). "TEMPO2, a new pulsar timing package. I: Overview". Monthly Notices of the Royal Astronomical Society. 369 (2): 655–672. arXiv:astro-ph/0603381. Bibcode:2006MNRAS.369..655H. doi:10.1111/j.1365-2966.2006.10302.x. S2CID 9100723.
^R. T. Edwards; G. B. Hobbs; R. N. Manchester (2006). "TEMPO2, a new pulsar timing package. II: The timing model and precision estimates". Monthly Notices of the Royal Astronomical Society. 372 (4): 1549–1574. arXiv:astro-ph/0607664. Bibcode:2006MNRAS.372.1549E. doi:10.1111/j.1365-2966.2006.10870.x. S2CID 15470313.
^S. M. Kopeikin (1995). "On possible implications of orbital parallaxes of wide orbit binary pulsars and their measurability". Astrophysical Journal Letters. 439 (1): L5–L8. Bibcode:1995ApJ...439L...5K. doi:10.1086/187731.
^S. M. Kopeikin (1996). "Proper Motion of Binary Pulsars as a Source of Secular Variations of Orbital Parameters". Astrophysical Journal Letters. 467 (8): L93–L95. Bibcode:1996ApJ...467L..93K. doi:10.1086/310201. S2CID 121403585.
^O.V. Doroshenko; S. M. Kopeikin (1995). "Relativistic effect of gravitational deflection of light in binary pulsars". Monthly Notices of the Royal Astronomical Society. 274 (4): 1029–1038. arXiv:astro-ph/9505065. Bibcode:1995MNRAS.274.1029D. doi:10.1093/mnras/274.4.1029.
^S.M. Kopeikin (2003). "Retardation of Gravity in Binary Pulsars" (PDF). In M. Bailes; D.J. Nice; S.E. Thorsett (eds.). Radio Pulsars. APS Conference Series. Vol. 302. The Astronomical Society of the Pacific. pp. 111–114. Bibcode:2003ASPC..302..111K.
^S. M. Kopeikin (1985). "General Relativistic Equations of Binary Motion for Extended Bodies with Conservative Corrections and Radiation Damping". Soviet Astronomy. 29 (8): 516–524. Bibcode:1985SvA....29..516K.
^M. Kramer; et al. (2021). "Strong-Field Gravity Tests with the Double Pulsar". Phys. Rev. X. 11 (4): 041050. arXiv:2112.06795. Bibcode:2021PhRvX..11d1050K. doi:10.1103/PhysRevX.11.041050. S2CID 245124502.
^S. M. Kopeikin (1997). "Binary pulsars as detectors of ultralow-frequency gravitational waves". Physical Review D. 56 (8): 4455–4469. Bibcode:1997PhRvD..56.4455K. doi:10.1103/PhysRevD.56.4455.
^S. M. Kopeikin; I.Yu. Vlasov (2004). "Parametrized post-Newtonian theory of reference frames, multipolar expansions and equations of motion in the N-body problem". Physics Reports. 400 (4–6): 209–318. arXiv:gr-qc/0403068. Bibcode:2004PhR...400..209K. doi:10.1016/j.physrep.2004.08.004. S2CID 119704064.
^S. M. Kopeikin (2019). "Covariant equations of motion of extended bodies with arbitrary mass and spin multipoles". Physical Review D. 99 (9): 084008. arXiv:1810.11713. Bibcode:2019PhRvD..99h4008K. doi:10.1103/PhysRevD.99.084008. S2CID 102351550.
^S. M. Kopeikin (2020). "Post-Newtonian Lagrangian of an N -body system with arbitrary mass and spin multipoles". Physical Review D. 102 (2): 024053. arXiv:2006.08029. Bibcode:2020PhRvD.102b4053K. doi:10.1103/PhysRevD.102.024053. S2CID 219687947.
^S. M. Kopeikin (2001). "Testing the Relativistic Effect of the Propagation of Gravity by Very Long Baseline Interferometry". Astrophysical Journal Letters. 556 (1): L1–L5. arXiv:gr-qc/0105060. Bibcode:2001ApJ...556L...1K. doi:10.1086/322872. S2CID 2121856.
^S. M. Kopeikin (2003). "The Measurement of the Light Deflection from Jupiter: Experimental Results". Astrophysical Journal. 598 (1): 704–711. arXiv:astro-ph/0302294. Bibcode:2003ApJ...598..704F. doi:10.1086/378785. S2CID 14002701.
^"Einstein proved right on gravity". BBC News. January 8, 2003. Retrieved April 17, 2010.
^"Physicist Says Testing Technique For Gravitomagnetic Field Is Ineffective". Science Daily. June 2, 2007. Retrieved April 17, 2010.
^J. Müller; D. Dirkx; S. M. Kopeikin; G. Lion; I.Panet; P.N.A.M. Visser (2018). "High Performance Clocks and Gravity Field Determination". Space Science Reviews. 214 (1): 5. arXiv:1702.06761. Bibcode:2018SSRv..214....5M. doi:10.1007/s11214-017-0431-z. S2CID 119335425.
^S. M. Kopeikin; E. M. Mazurova; A. P. Karpik (2015). "Towards an exact relativistic theory of Earth's geoid undulation". Physics Letters A. 379 (26–27): 1555–1562. arXiv:1411.4205. Bibcode:2015PhLA..379.1555K. doi:10.1016/j.physleta.2015.02.046.
^S. M. Kopeikin; W.-B. Han; E. M. Mazurova (2016). "Post-Newtonian reference ellipsoid for relativistic geodesy". Physical Review D. 93 (4): 044069. arXiv:1510.03131. Bibcode:2016PhRvD..93d4069K. doi:10.1103/PhysRevD.93.044069. S2CID 119140663.
^S. M. Kopeikin; I. Y. Vlasov; W.-B. Han (2018). "Normal gravity field in relativistic geodesy". Physical Review D. 97 (4): 045020. arXiv:1708.09456. Bibcode:2018PhRvD..97d5020K. doi:10.1103/PhysRevD.97.045020. S2CID 119366302.
^ ab
Pepe, Alberto; Kurtz, Michael J. (November 2012). "A Measure of Total Research Impact Independent of Time and Discipline". PLoS ONE. 7 (11): e46428. arXiv:1209.2124. Bibcode:2012PLoSO...746428P. doi:10.1371/journal.pone.0046428. PMC3492370. PMID 23144782. e46428.
External linksedit
"The real reason why the Pioneer spacecrafts appear to be slowing down" - theoretical study of the Pioneer anomaly effect
"Test for Einstein's gravity speed theory" - a BBC News article about the preparations to the "speed-of-gravity" experiment
"Speed of Gravity Measured for First Time" - a NRAO press-release on VLBI experiment measured the ultimate speed of gravity
"Einstein Was Right on Gravity's Velocity" - The New York Times, January 8, 2003
"Physicist Disputes Speed of Gravity Claim" - American Physical Society News article, dated June 2003, describing criticism of the results
"Aberration and the Fundamental Speed of Gravity in the Jovian Deflection Experiment" - a rebuttal of the criticism
"Gravimagnetism, Causality, and Aberration of Gravity in the Gravitational Light-Ray Deflection Experiments" - Kopeikin's new proposals for further improvements of the experimental results on the fundamental speed of gravity
"Frontiers in Relativistic Celestial Mechanics. Vol. 1. Theory" - edited by S. Kopeikin
"Frontiers in Relativistic Celestial Mechanics. Vol. 2. Applications and Experiments" - edited by S. Kopeikin
"Relativistic Celestial Mechanics of the Solar System" - monograph by S. Kopeikin, M. Efroimsky and G. Kaplan
"Metric Theories of Gravity: perturbations and conservation laws" - monograph by A. Petrov, S. Kopeikin, B. Tekin and R. Lompay