Mj. Reiner et al., ULYSSES-GALILEO OBSERVATIONS OF TYPE-III RADIO-BURSTS AND ASSOCIATED IN-SITU ELECTRONS AND LANGMUIR-WAVES, Space science reviews, 72(1-2), 1995, pp. 261-266
Both the Ulysses and Galileo spacecraft detected energetic electrons a
nd Langmuir waves that were associated with a type III radio burst on
10 December 1990. At the time of these observations, these spacecraft
were in the ecliptic plane and separated by 0.4 AU, with Galileo near
the Earth at 1 AU and Ulysses at 1.36 AU. From the measured electron a
rrival times, the propagation path lengths of the electrons to both Ul
ysses and Galileo were estimated to be significantly longer than the l
ength of the Parker spiral. These long path lengths are interpreted as
due to draping of the interplanetary magnetic field lines around a CM
E. The onset times of the Langmuir waves at Ulysses and Galileo coinci
ded with the estimated arrival time of the 9 keV and 14 keV electrons,
respectively.