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Information × Registration Number 0214U007967, 0113U005431 , R & D reports Title Model analysis dust tails of number long-periodic comets popup.stage_title Head Ivanova O.V., Кандидат фізико-математичних наук Registration Date 26-12-2014 Organization Main Astronomical Observatory popup.description2 The photometric observations of dynamically new comets C / 2012 K5 (LINEAR) and C / 2012 S1 (ISON) were made. The data processing, which then were used for the modeling and study of the morphology cometary coma were made. As a result of the simulation were obtained optimal model parameters that characterize of dust, that forming part of the atmosphere of comets. In the simulation results were obtained that the radii of dust particles, which was formed dust tail of comet C / 2012 K5 (LINEAR) are in the range of 0.2 and 100 microns, velocity dust particles were in the range of 200 and 6 m/sec. Model image was created with 10 million particles. The source of dust served cone directed at the sun with an angle aperture of 100 °. Maximum age of particles, which could form the tail, was 40 days. The extent of the size distribution of dust particles (n (a) = a?) constant over time and matter ? = -2.4. To construct the model dust tail of comet C / 2012 S1 (ISON) were traced trajectory 50 million dust particles. According to our research model, observed tail could be formed by dust particles ranging in size from 0.5 to 16.6 microns, departure rate which ranged from 17 to 130 m / s, the exponent of the distribution of the radius equal to -2.5, the maximum age of dust particles that formed the tail of a comet is 25 days. We also got a comet brightness rating at the time of observation and studied the morphology (structure jets) dusty places using digital filters that revealed the presence of jets in the coma of comet structure. Product Description popup.authors Іванова О.В. Харчук С.В. popup.nrat_date 2020-04-02 Close