CAJ | 학술논문

在简述国际天文学会（IAU）定义的几种不同时间尺度的基础上，重点讨论脉冲星计时观测中时间坐标相对论转换问题。脉冲星计时观测资料分析应该参考地球时TT，并将TT转换为质心坐标时TCB或质心力学时TDB。基于IAU重新定义的TDB，讨论和比较了时间坐标转换的解析算法和利用太阳系天体历表的数值积分算法。分析了TCB和TDB对脉冲星自转参数测量的影响。最后，以毫秒脉冲星PSRB1855＋09的计时模型为例，初步分析了脉冲星脉冲到达时间的预报问题。
재간술국제천문학회（IAU）정의적궤충불동시간척도적기출상，중점토론맥충성계시관측중시간좌표상대론전환문제。맥충성계시관측자료분석응해삼고지구시TT，병장TT전환위질심좌표시TCB혹질심역학시TDB。기우IAU중신정의적TDB，토론화비교료시간좌표전환적해석산법화이용태양계천체력표적수치적분산법。분석료TCB화TDB대맥충성자전삼수측량적영향。최후，이호초맥충성PSRB1855＋09적계시모형위례，초보분석료맥충성맥충도체시간적예보문제。
Based on the time scales TCB and TDB defined by International Astronomical Union （IAU）, the time coordinate relativistic transformation for pulsar timing data analysis is discussed with emphasis. The terrestrial time （TT） should be used as reference time scale and the time coordinate transformation TCB--TT or time transformation TCB--TT should be made in pulsar timing data analysis. Based on the definition of TDB revised by IAU, the numerical integration method using JPL ephemeris and the traditional analytical method for calculating relativistic transformation of time coordinates are analyzed and compared. The effects of TCB or TDB on the measurements of pulsar rotational parameters are discussed. A preliminary analysis of the prediction of the time of arrival （TOA） of pulse is made by using PSR B 1855＋09 rotation models as an example.