Dust emission from Comet Kohoutek (1973f) at large distances from the sun
During a period of 60 days around the time when the HEOS 2 satellite penetrated the orbital plane of Comet Kohoutek (1973f) the micrometeoroid experiment on board registered an excessive particle flux. These particles are identified with those originated in Comet Kohoutek. Orbit calculations show that their emission occurred outside 3.8 AU from the sun. The ratio of the force of radiation pressure to that of gravity of these particles was determined to β = 1 ± 0.1, their mass has been measured from the satellite data (10−13 g to 10−11 g). The velocity and the rate of dust particles emitted from the comet is studied on the basis of the theory of dust comets fgmulated by Finson and Probstein. An emission rate of appr. 1.2 x 1018 particles per second in the size range corresponding to 0.9. ≤ β < 1.1 and an emission velocity of appr. 0.5 km/sec match best the observed data.
KeywordsDust Particle Radiation Pressure Orbital Plane Dust Emission Heliocentric Distance
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