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Information × Registration Number 0207U008690, 0107U007051 , R & D reports Title Investigation of peculiar structure and photometry of plasma tails of a comet popup.stage_title Head Ivanova O.V., Кандидат фізико-математичних наук Registration Date 21-12-2007 Organization Main Astronomical Observatory popup.description2 In times of work on the topic of grant a few tasks were done. First the large row of representing bright comets was selected from the archive of glass photographic plates of the Kiev astnoromcaly observatory and Main astronomicaly observatory, and neat to them callibratei for the photometric processing of data. For research of pekuliar structures in plasma tails, was taken two comets: 1P/Halley and С/1987 XXIX Bredfild, as in them observed sufficiently big plasma tails with various structures. The next stage of work was conducting of scanning of images and callibrats (more than 50 images) with large settling ability and high enough degree of stabilizing, for to get high-quality photometric material. The got images were digital. In the turn digital information was placing in the base of data of virtual observatory of MAO. Pictures were callibrated by fotometr and photometry is conducted sight of comparison. A characteristic curve as dependence of density of durt of negative is collected from a star size. By a diffuse model by us the lower values of acceleration and time of life of fluorestsiruyuschikh particles were appraised, slit andcrossl coefitsient diffusions, possible granit of induction of the magnetic field in the plasma tail of comet of С/1987 XXIX Bredfild. It is planned to draw on results of NDR for conducting of subsequent researches and analysis of physical terms in the plasma tails of comets, on the base of photographic arkhiviv and new supervisions of comets, and also for perfection of existent theoretical models.5635 Product Description popup.authors popup.nrat_date 2020-04-02 Close