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A new look at the nature of comet Halley's LF electromagnetic waves: Giotto observations

Neubauer, Fritz M.; Tsurutani, Bruce T.; Glassmeier, Karl-Heinz +1 more

All of the comet Halley high-time resolution magnetic field data have been examined to determine the nature of the “turbulence” and its difference from that of comets Giacobini-Zinner and Grigg-Skjellerup. Although much of the wave appears unpolarized, occasionally there are intervals of clear order. We find several interesting new wave polarizati…

Pick-up ions and associated wave energy transport at comet P/Halley: A case study

Neubauer, Fritz M.; Glassmeier, Karl-Heinz; Söding, Anne +1 more

During the flyby of the spacecraft Giotto at comet p/Halley Poynting vectors and Elsässer variables have been determined to study wave propagation directions. The observed wave properties are compared with the theoretically predicted RH^-, LH⁺ and LH^- wave modes. Between 10:36 and 19:11 SCET on March 13, 1986 the pr…