The magnetic field in the coma of Comet Halley

Details The magnetic field in the coma of Comet Halley The magnetic field in the coma of Comet Halley

Aug 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986pazh...12..647r&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 12, Aug. 1986, p. 647-652) Soviet Astronomy Letters (ISSN 0360-0327), vol. 12, July-Aug

Astronomy and Astrophysics

Astronomy

4

Halley'S Comet, Magnetic Fields, Magnetic Measurement, Coma, Flyby Missions, Ionospheres, Magnetometers, Vega Project

Scientific paper

According to the results of the preliminary analysis of the magnetic field data of Vega 1 a weakly detectable bow wave was observed at the distance of ≡1x106km (inbound) and ≡450x103km (outbound). Both Vega SC penetrated the diffuse contact surface or cometopause at the distance (50 - 20)x103km from the nucleus. The enhanced magnetic field of 75 - 80 nT observed inside the cometopause indicates the solar wind magnetic field penetration into the outer cometary ionosphere and the field rotation inside the ionosphere may be a result of the observation of the preceding interplanetary magnetic field having penetrated into the cometary ionosphere.

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