Abstract
The keynote report at GR10 on new results from space experiments was the invited paper “Testing relativity with solar system dynamics”, which was presented by R.W. Hellings earlier in the Conference. In that paper, the major improvements in solar system tests of general relativity made possible by adding the Viking Lander and Viking Orbiter tracking data to other existing information were discussed (see also Hellings et al., 1983, and Reasenberg, 1984). It is striking that the accuracy of some of the very interesting results is limited more by uncertainties in modeling the effects of many different asteroids on the orbit of Mars (Williams, 1984) than by any other factor. Further studies of the effects of the asteroids appear to be very important.
Staff Member, Quantum Physics Division, National Bureau of Standars.
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References
Papers presented to the GR10 conference and published in:
Bertotti, B., de Felice, F., and Pascolini, A. (eds): 1983, 10th International Conference on General Relativity and Gravitation. Contributed Papers. Vol. 2, CNR, Roma.
Anderson, A.J.: 1983, “Precise spacecraft tracking using VLBI digital tone extraction for the detection of a cosmic background of gravitational wave radiation”, p. 945.
Anderson, J.D. and Lau, E.K.: 1983, “Doppler detection of gravitational radiation with Pioneer 10”, p. 946.
Ashby, N., and Bertotti, B.: 1983, “Relativistic perturbations of an earth satellite”, p. 948.
Ashby, N., Bender, P.L., and Wahr, J.M.: 1983, “Accuracy of gravitational physics tests and of the solar quadrupole moment from ranging to a Mercury orbiter”, p. 947.
Bertotti, B., and Estabrook, F.B.: 1983, “The prospects for low frequency gravitational wave detection”, p. 951.
Bertotti, B., and Iess, L.: 1983, “Correlation between two spacecraft in the Doppler detection of a cosmic gravitational background”, p. 952.
Cerdonio, M., and Vitale, S.: 1983, “Noisy pulsars, superfluid vorticity and gravitational waves”, p. 953.
Cowling, S.A.: 1983, “Relativistic effects in observations by the HIPPARCOS satellite”, p. 956.
Fairbank, W.M., Breakwell, J.V., Cabrera, B., Chen, J. H., Cheung, W.S., DeBra, D.B., Duhamel, T., Everitt, C.W.F., Farnsworth, R.A., Gill, J., Keiser, G.M., Levine, P., Lipa, J.A., Lockhart, J.M., Pollock, S., Turneaure, J.P., and Van Patten, R.A.: 1983, “The Stanford gyro relativity experiment”.
Faller, J.E., Bender, P.L., Chan, Y.M., Hall, J.L., Hils, D., and Hough, J.: 1983, “Laser gravitational wave experiment in space”, p. 960.
Hellings, R.W., and Downs, G.S.: 1983, “Upper limits on the isotropic gravitational radiation background from pulsar timing analysis”, p. 963.
Paik, H.J.: 1983, “Null test of the inverse square law in the earth’s orbit”, p. 966.
Wahlquist, H.D.: 1983, “Correlation analysis for dual spacecraft Doppler gravity wave experiments”, p. 967.
Other references
Armstrong, J.W., and Sramek, R.A.: 1982, “Observation of tropospheric phase scintillations at 5GHz on vertical paths”, Radio Sci., 17, 1579.
Armstrong, J.W., Woo, R., and Estabrook, F.B.: 1979, “Interplanetary Phase Gravitational Radiation”, Astrophys. J. 230, 570.
Ashby, N., and Allan, D.W.: 1979, “Practical implications of relativity for a global coordinate time scale”, Radio Sci., 14, 649.
Ashby, N., and Bertotti, B.: 1984, “Relativistic perturbations of an Earth satellite”, Rhys. Rev. Lett., 52, in press.
Chan, H.A., Moody, M.V., and Paik, H.J.: 1982, “Null test of the gravitational inverse square law”, Rhys. Rev. Lett., 49, 1745.
Hellings, R.W., Adams, P.J., Anderson, J.D., Keesey, M.S., Lau, E.L., Standish, E.M., Canuto, V.M., and Goldman, I.: 1983, “Experimental test of the variability of G using Viking lander ranging data”, Rhys. Rev. Lett., 51, 1609.
Hellings, R.W., Callahan, P.S., Anderson, J.D., and Moffet, A.T.: 1981, “Spacecraft-Doppler gravity-wave detection. II. Results.”, Rhys. Rev., D 23, 844.
Reasenberg, R.D.: 1984, “The constancy of G and other gravitational experiments”, Rhyl. Trans. Roy. Boo. Lond. A, in press.
Thorne, K.S.: 1984, “Gravitomagnetism, test in Quasar and the Stanford gyroscope experiment”, in C.W.F. Everitt, B.S. Deaver, and P. Michelson (eds), Near Zero: New Frontiers in Physics, Essays in Honour of William M. Fairbank, W.H. Freeman, San Francisco, in press.
Williams, J.G.: 1984, “Determining asteroid masses from perturbations on Mars”, Icarus, in press.
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Bender, P.L. (1984). Space Experiments Report of Workshop C2. In: Bertotti, B., de Felice, F., Pascolini, A. (eds) General Relativity and Gravitation. Fundamental Theories of Physics, vol 9. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-6469-3_22
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