Search academic texts

Information × Registration Number 0124U000969, ( 0225U002618  0226U002859  ) R & D request Title Dynamical evolution of asteroids near Kirkwood gaps with the account for roughness and thermophysical properties of their surfaces Head Golubov Oleksii А., Доктор фізико-математичних наук Registration Date 27-01-2024 Organization V.N. Karazin Kharkiv National University popup.description1 The project is dedicated to researching the mechanisms of asteroids from the main asteroid belt transitioning to orbits that approach Earth through Kirkwood gaps, from which resonant perturbations by planets efficiently eject asteroids. In the course of the project, numerical simulations of asteroid motion within the Kirkwood gaps will be conducted for the first time, fully accounting for non-gravitational effects such as the Yarkovsky and YORP effects, depending on surface roughness. This will allow for the most accurate assessment of the rates of replenishment of the near-Earth asteroid population up to the present day. Based on refined criteria for classifying mineralogical types using data from new surveys of the celestial sky from both space and ground-based observations, a complete picture of the taxonomic diversity of asteroids near Kirkwood gaps will be obtained. The results obtained will subsequently enhance the reliability of asteroid impact predictions with Earth, help develop a methodology for deflecting potentially hazardous asteroids, and can be used to select asteroids with specified properties as targets for space missions. popup.nrat_date 2024-12-09 Close