Classic Solar System Tests of General Relativity

The gravitational redshift is one of Einstein’s three original tests of General Relativity and derives from time’s slowing near a massive body. For velocities well below c, this is represented with sufficient accuracy by:As detailed by Will (1981), Schiff’s conjecture argues that the gravitational redshift actually tests the principle of equivalence rather than the gravitational field equations. For low redshifts, solar system tests give highest accuracy. LoPresto & Pierce (1986) have shown that the redshift at the Sun’s limb is good to about ±3%. Rocket experiments produce an accuracy of ±0.02% (Vessot et al. 1980), while for 40 Eri B the best white dwarf, the observed and predicted VRS agree to only about ±_5% (Wegner 1980).

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Solar system tests in Rastall gravity

Modern Physics Letters A ◽

10.1142/s0217732320500340 ◽

2019 ◽

Vol 35 (07) ◽

pp. 2050034 ◽

Cited By ~ 4

Author(s):

Tuhina Manna ◽

Farook Rahaman ◽

Monimala Mondal

Keyword(s):

General Relativity ◽

Black Hole ◽

Time Delay ◽

Solar System ◽

Astrophysical Object ◽

Tests Of General Relativity ◽

Deflection Of Light

In this paper, we have investigated the classical tests of General Relativity like precession of perihelion, deflection of light and time delay by considering a phenomenological astrophysical object like Sun, as a neutral regular Hayward black hole in Rastall gravity. We have tabulated all our results for some appropriate values of the parameter [Formula: see text]. We have compared our values with [Formula: see text], which corresponds to the Schwarzschild case. Also the value of [Formula: see text] is of particular interest as it gives some promising results.

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Astrometry VLBI in space (AVS)

Symposium - International Astronomical Union ◽

10.1017/s0074180900127974 ◽

1996 ◽

Vol 172 ◽

pp. 497-500

Author(s):

V.I. Altunin ◽

V.A. Alekseev ◽

E.L. Akim ◽

T.M. Eubanks ◽

K.A. Kingham ◽

...

Keyword(s):

General Relativity ◽

Solar System ◽

Radio Astronomy ◽

Reference Frames ◽

Very Long Baseline Interferometry ◽

Tests Of General Relativity ◽

Long Baseline ◽

New Space

This paper describes a proposal for a new space radio astronomy mission for astrometry which uses very-long-baseline interferometry (VLBI) called Astrometry VLBI in Space (AVS). The ultimate goals of AVS are to improve the accuracy of radio astrometry measurements to the microarcsecond level in one epoch of measurements and to improve the accuracy of the transformation between the inertial radio and optical coordinate reference frames. The scientific objectives of the mission cover a few categories of astrometry tasks such as astrometry of the solar system, reference frames ties, tests of general relativity and cosmology (for references see Lowe and Treuhaft, 1994, Russell et al., 1992, Eubanks et al., 1994).

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