Gravity Probe B;
general relativity;
gyroscope;
cryogenic;
space;
geodetic;
frame-dragging;
D O I:
10.1088/0264-9381/32/22/224001
中图分类号:
P1 [天文学];
学科分类号:
0704 ;
摘要:
The Gravity Probe B mission provided two new quantitative tests of Einstein's theory of gravity, general relativity (GR), by cryogenic gyroscopes in Earth's orbit. Data from four gyroscopes gave a geodetic drift-rate of -6601.8 +/- 18.3 marc-s yr(-1) and a frame-dragging of -37.2 +/- 7.2 marcs yr(-1), to be compared with GR predictions of -6606.1 and -39.2 marcs yr(-1) (1 marc-s = 4.848 x 10(-9) radians). The present paper introduces the science, engineering, data analysis, and heritage of Gravity Probe B, detailed in the accompanying 20 CQG papers.
机构:
Stanford Univ, Hansen Expt Phys Lab, Grav Probe B Mission, Stanford, CA 94309 USA
San Francisco State Univ, Dept Phys & Astron, San Francisco, CA 94132 USA
Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, Stanford, CA 94035 USAStanford Univ, Hansen Expt Phys Lab, Grav Probe B Mission, Stanford, CA 94309 USA
机构:
Stanford Univ, Hansen Expt Phys Lab, Grav Probe B Mission, Stanford, CA 94309 USA
San Francisco State Univ, Dept Phys & Astron, San Francisco, CA 94132 USA
Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, Stanford, CA 94035 USAStanford Univ, Hansen Expt Phys Lab, Grav Probe B Mission, Stanford, CA 94309 USA