天文学报
天文學報
천문학보
ACTA ASTRONOMICA SINICA
2010年
1期
1-7
,共7页
引力%太阳%地球%波%方法:解析
引力%太暘%地毬%波%方法:解析
인력%태양%지구%파%방법:해석
gravitation%Sun%Earth%waves%methods:analytical
从球对称引力场中光子在赤道面上的运动微分方程出发,采用后牛顿近似方法,讨论了 Reissner-Nordstr(o)m 度规场中雷达回波延迟实验的后后牛顿修正.通过计算给出了后牛顿以及后后牛顿的修正结果,当荷电量 Q 为零时,该结果适用于电中性天体,其后牛顿部分的修正与经典文献一致.文中采用的近似展开方法同样适用于讨论更高阶的修正.雷达回波的高阶修正对目前展开的高精度空间引力试验有着重要的参考价值.
從毬對稱引力場中光子在赤道麵上的運動微分方程齣髮,採用後牛頓近似方法,討論瞭 Reissner-Nordstr(o)m 度規場中雷達迴波延遲實驗的後後牛頓脩正.通過計算給齣瞭後牛頓以及後後牛頓的脩正結果,噹荷電量 Q 為零時,該結果適用于電中性天體,其後牛頓部分的脩正與經典文獻一緻.文中採用的近似展開方法同樣適用于討論更高階的脩正.雷達迴波的高階脩正對目前展開的高精度空間引力試驗有著重要的參攷價值.
종구대칭인력장중광자재적도면상적운동미분방정출발,채용후우돈근사방법,토론료 Reissner-Nordstr(o)m 도규장중뢰체회파연지실험적후후우돈수정.통과계산급출료후우돈이급후후우돈적수정결과,당하전량 Q 위령시,해결과괄용우전중성천체,기후우돈부분적수정여경전문헌일치.문중채용적근사전개방법동양괄용우토론경고계적수정.뢰체회파적고계수정대목전전개적고정도공간인력시험유착중요적삼고개치.
From the kinetic differential equations of the photon in the equatorial plane of the spherical symmetrical gravity field,the post-post-Newtonian amendments for radar echo delay test in the Reissner-Nordstr(o)m field are discussed using the post-Newtonian approximation method.The amendatory results of post-Newtonian order and post-post-Newtonian order are deduced in this paper.When the charge Q is equal to zero,the results are applicable to neutral celestial objects.The post-Newtonian amendatory parts are consistent with the classical literature.The approximation method used in this paper can also be used to discuss the amendments with higher orders.The high-order amendments for radar echo delay test have important significances to the ongoing high-precision spatial gravitation test.
