Occultation of the radio source 2019+ 098 (3C411) by comet 1983e (Sugano-Saigusa-Fujikawa)

Ananthakrishnan, S. ; G. Banhatti, Dilip (1983) Occultation of the radio source 2019+ 098 (3C411) by comet 1983e (Sugano-Saigusa-Fujikawa) ArXiv eprint . pp. 1-9.


Official URL: http://arxiv.org/abs/0902.2898


We planned and observed with Ooty Radio Telescope the occultation with Comet 1983e Sugano-Saigusa-Fujikawa of the extragalactic radio source 2019+098 = 3C411. The results are presented formally for the first time, along with a brief account of other cometary occultations and general background of planning, execution and interpretation of such observations which will be useful for other future observers. The occultation occurred at 07:52 IST on 12th June 1983. It amounted to 25% peak to peak fluctuation in the flux density of the radio source. The rough predicted occultation time was 07:24 IST. We interpret the results after refining the occultation time to allow for various effects.

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