Astronomy and Astrophysics – Astronomy
Scientific paper
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.
Eroshenko E. G.
Riedler Willi
Russell Christopher T.
Schwingenschuh Konrad
Stiazhkin V. A.
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