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Information × Registration Number 0219U003514, 0116U000832 , R & D reports Title Photometric and polarymetric investigations of the main belt asteroids, comets and transneptunien objects popup.stage_title Head Dmytro Lupishko, Registration Date 17-01-2019 Organization Kharkov National University named after V.N. Karazin popup.description2 During 321 nights photometric observations of 66 main-belt asteroids, seven comets, two Kuiper-belt bodies and two centaurs have been conducted. A large amount of new data on these bodies has been obtained. Within the Intern. program BinAstPhotSurvey, 15 double and four triple systems are discovered among small main-belt asteroids, of which 18 asynchronous systems and one are fully synchronous. The basic parameters of these multiple systems are calculated. Their analysis points to the main role of the YORP-effect in the origin of multiple systems among small asteroids. It is shown that at equal heliocentric distances, the gas- and dust-productivity of long-period comets is higher than that of the Jupiter-family comets. This is due to age-related exhaustion or differences in the origin of these different types of comets. At the same time, the dust-productivity of the comet before the perihelion is higher than after, which can be caused by the thermal delay. The most active are dynamically new comets. Lower activity of the "old" comets may be due to the consistent loss of volatiles and the creation of dust mantles on the surfaces. With great accuracy the rotation period of the dwarf planet Makemake is determined and the most probable model of its surface composition is proposed. Using the existing albedo asteroid databases and the most complete data on their polarimetric parameters, a generalized scale of polarimetric albedo of asteroids was created for the determination of albedos from polarimetric observations. The average parameters of the polarization-phase dependences of the asteroid of different composite types are determined and the classification of 283 main- belt asteroids is carried out according to polarimetric data. Asteroid Polarimetric Data-base is updated. Product Description popup.authors І. Г. Слюсарев І. М. Бельська В. Г. Чорний В. Г. Чорний В. Г. Шевченко Д. Ф. Лупішко О. І. Міхальченко С. Ф. Величко Т. А. Громакіна Ю. М. Круглий popup.nrat_date 2020-04-02 Close