摘要
本文简单介绍利用十米天线秒级通道观测1987年9月23日21cm射电日食的情况及处理结果。射电掩食半径为1.280r⊙,等效半径为1.083r⊙。食甚时刻01~h50~m30~s(比光学食甚推迟05~m49~s),复圆时刻03~h12~m20~s。剩余流量为63％。总流量59.3s.f.u,宁静成分49.6s.f.u.,活动源9.7s.f.u.及与所掩各光学源相应的射电源参数。
This paper briely describes the partial solar eclipse observations in September 23, 1987 on second level channed at 1.42GHz by 10m antenna, and the processing results in presented. The radio eclipse radias is 1.280 R⊙ and its effective radias is 1.083 R⊙. Was at 01 : 50 : 30 (05m49s later than optical maximum eclipse), and at 03 : 12 : 20 the partial eclipse ended. The residual flux deslty is in 63 per cent. The total flux density in 59.3 s. f. u. in which the flux densities for quiet sun and active sunrces are 49.6 s. f. u. and 9.7 s. f. u. respectively. The parameters of the radio sources corresponding to the optical eclipsed soures aer also given in the paper,
出处
《天文研究与技术》
CSCD
1989年第3期25-28,共4页
Astronomical Research & Technology
