Registration Number
0222U001440,
0119U002539
, R & D reports
Title
Telescopic investigations of the main belt asteroids, Jupiter's trojans and centaurs.
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Head
Shevchenko Vasyl H.,
Registration Date
27-01-2022
Organization
V.N. Karazin Kharkiv National University
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The objects of study are the mainbelt asteroids, Jupiter trojans and centaurs.
The aim of the work is to determine the absolute magnitudes, colors, sizes, shapes, parameters of axial rotation, optical properties of the surfaces of asteroids, Jupiter trojans and centaurs, the discovery of binary systems and their basic parameters.
Research methods − photometric and spectrophotometric observations, computer data analysis.
During 205 nights, new observations were made of 70 main-belt asteroids, five Trojans and four objects with a high orbital inclination. Observations have identified fourteen new binary systems, determined for the first time the physical properties of four objects with high orbital inclinations, and obtained phase dependences of six asteroids in a wide range of phase angles, including the maximum possible.
For the first time, 93 genetically related pairs of asteroids were analyzed. It was found that the primary bodies in 13 pairs are double or triple systems, and in 86 of 93 pairs there is a dependence of the period of rotation of the primary body on the ratio of masses associated with cascading disruption in the process of increasing speed.
A new calibration database of geometric albedos was created, using the diameters determined by the results of asteroid star occultations. It included 150 asteroids of various sizes and compositional types.
Analysis of the phase dependences of the brightness of 12 selected asteroids in the outer part of the main belt showed that most moderate albedo asteroids have surface properties different from those of S-type asteroids, and three of the measured asteroids may belong to rare M-type objects.
Analysis of absolute magnitude values of asteroids of the Kharkiv base with PanSTARRS, ATLAS and MPC reviews showed that the most accurate data are PanSTARRS, MPC data have significant deviations for asteroids with H> 14 mag. The ATLAS review has, in addition to systematic deviations, also a linear trend with increasing
Product Description
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Belskaya Iryna М.
Golubaev Oleksandr V
Hromakina Tetiana A
Dovhopol Anatolii M.
Krugly Yurij M.
Lupishko Dmytro F
Mikhalchenko Olga I
Slyusarev Ivan H
Stankevych Dmytro G
Chiorny Vasyl H
Shevchenko Vasyl
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2022-03-09
