Astronomy and Astrophysics – Astrophysics
Scientific paper
2007-09-10
2007, ApJ, 668, L67
Astronomy and Astrophysics
Astrophysics
4 pages, 3 tables, 4 figures. Accepted for publication in ApJ Letters. Corrected minor typos. The definitive version is availa
Scientific paper
10.1086/522780
We present the occultation observation of compact radio source B0019-000 through the plasma tail of comet Schwassmann-Wachmann 3-B. The observation was made with the Ooty Radio Telescope at 326.5 MHz on 2006 May 26, when the plasma tail of the comet was in front of this source. The scintillation was found to be increased significantly for the target source compared to that of a control source. The intensity fluctuation power spectra show both steepening at high spatial scales and excess power at low spatial scales. This observation can be attributed to the turbulence in the comet plasma tail. A two-regime plasma turbulence can explain the time-evolution of the power spectrum during the occultation observation.
Chakraborty Pavan
Manoharan Periasamy K.
Roy Nirupam
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