Temperature distribution and dynamics of interplanetary dust particles in the vicinity of the Sun (solar probe HELIOS A and B: Experiment 10 Z)

Details Temperature distribution and dynamics of interplanetary dust particles in the vicinity of the Sun (solar probe HELIOS A and B: Experiment 10 Z) Temperature distribution and dynamics of interplanetary dust particles in the vicinity of the Sun (solar probe HELIOS A and B: Experiment 10 Z)

Jun 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980ruhr.reptq....s&link_type=abstract

Final Report Ruhr Univ., Bochum (Germany, F.R.). Bereich Extraterrestrische Physik.

Other

Helios 1, Helios 2, Meteoroid Dust Clouds, Solar Corona, Temperature Distribution, Infrared Spectrometers, Particle Interactions, Poynting-Robertson Effect, Radiation Counters, Radiation Pressure, Solar Orbits, Solar Radiation, Sublimation

Scientific paper

The sublimation of interplanetary dust grains in the vicinity of the Sun was considered, especially as a possible source of beta meteoroids. Data from the HELIOS 1 and 2 micrometeoroid detectors (E 10) were interpreted. To determine the sublimation rates, the energy balance of a grain was evaluated for interaction with the solar radiation field, with solar wind particles, and with solar energetic particles. Compared to the energy transfered through interaction with the solar radiation field, all other processes were negligible for the determination of the temperature distribution. The only exception was water ice particles. The equation of motion for the dust particles was numerically solved with regard to the forces of interaction with the solar electromagnetic radiation field. Depending on the material and sizes, the orbits of the particles stabilize at different heliocentric distances. The inward spiraling due to the Poynting-Robertson effect ends by the total evaporation of the particles in the stability region.

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