Flux monitoring at 327 MHz during SL9-Jupiter collision |
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| Authors: | Rakesh K Malik Pradeep Gothoskar P K Manohran G Swarup K Subramanian V Balasubramanian |
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| Institution: | (1) National Centre for Radio Astrophysics, TIFR, Post Box 3, 411 007 Pune;(2) Radio Astronomy Centre, TIFR, 643001 Ooty |
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| Abstract: | Jupiter flux at 327 MHz was monitored using the Ooty radio telescope from July 12th to July 29th during the collision of comet
Shoemaker-Levi 9 with Jupiter. Flux was found to increase steadily from July 17th to July 26th by ∼ 2–5 Jy, after which it
declined to its pre-event value. The comparison of 327 MHz observations with those at 840 MHz and 2240 MHz indicates that
the enhancement was mainly due to the increased synchrotron emission and the contribution of thermal emission was very small
at metric-decimetric frequencies. The enhancement in radio emission was found to be more at 840 MHz than at 327 or 2240 MHz.
The steepening of the spectrum between 327 and 840 MHz as well as between 2240 and 840 MHz was also noted. |
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| Keywords: | SL9-Jupiter collision radio flux monitoring Jupiter radio emission |
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