Astrophysics and Space Science

, Volume 282, Issue 1, pp 245–253

Gravity Anomaly During the Mohe Total Solar Eclipse and New Constraint on Gravitational Shielding Parameter

Authors

  • Xin-She Yang
    • Department of Applied MathematicsUniversity of Leeds
  • Qian-Shen Wang
    • Institute of GeophysicsChinese Academy of Sciences
Article

DOI: 10.1023/A:1021119023985

Cite this article as:
Yang, X. & Wang, Q. Astrophysics and Space Science (2002) 282: 245. doi:10.1023/A:1021119023985

Abstract

By using a high-precision LaCoste-Romberg gravimeter, continuous and precise measurements were carried out during the March 9, 1997 total solar eclipse in Mohe region in Northeast China. The gravity variations were digitally recorded during the total solar eclipse so as to investigate the possible anomaly of the Sun and the Moon's gravitational fields on the Earth. After the careful processing and analysis of the observed data, no significant anomaly during the very solar eclipse was found. However, there are two ‘gravity anomaly valleys’ with near symmetrical decrease of about 6 ∼ 7 μg at the first contact and the last contact. This is the anomaly phenomenon observed and reported for the first time in the literature. This paper is intended to explain the observed anomaly by conducting the tilt experiment due to the thermal stress and temperature change in the solar eclipse. A new constraint limit on gravitational shielding is thus obtained. Some analysis and discussions are presented although further studies and research are highly needed.

Solar eclipsegravitationMajorana shieldingtotality

Copyright information

© Kluwer Academic Publishers 2002