Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a....98..133g&link_type=abstract
Astronomy and Astrophysics, vol. 98, no. 1, May 1981, p. 133-139.
Astronomy and Astrophysics
Astrophysics
13
Decametric Waves, Interplanetary Medium, Jupiter (Planet), Planetary Radiation, Scintillation, Astronomical Spectroscopy, Broadband, Interplanetary Magnetic Fields, Magnetic Effects, Jupiter, Emissions, Scintillations, Decameter Waves, Wavelengths, Data, Dynamics, Spectrum, Observations, Elongation, Analysis, Photography, Frequency, Interplanetary Magnetic Field, Bursts
Scientific paper
The influence of interplanetary scintillations (IPS) on Jovian decametric (DAM) emission (10-40 MHz) is studied on broad-band dynamic spectra, for the whole range of solar elongations. L-bursts are confirmed to be the result of IPS, and it is shown that they are broad-band bursts. This implies that IPS are correlated on the whole frequency range of observation. It is concluded from observations at conjunction that the intrinsic time scale of Jovian emission is either some milliseconds (S-bursts) or some minutes (arcs). On the other hand, when the elongation is about 130 deg east, a clear decrease in scintillation appears, which has already been observed by Erskine (1976). It is shown that this is a permanent feature of IPS. It could be interpreted as an effect of the interplanetary magnetic field in IPS.
Genova Francoise
Leblanc Yolanda
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