akoseminar

Emelianenko V. V. – Institute of Astronomy of the Russian Academy of Sciences “Dynamic evolution of a self-gravitating planetesimal disk in the distant trans-Neptunian region” Abstract The recent discovery of a family of objects moving far beyond the orbit of Neptune has sparked a heated discussion about the structure of the outer Solar system. In particular, the

Kiselev N.N. Crimean Astrophysical Observatory (CrAO RAN) Polarimetry of Comets, Atmosphereless Solar System Bodies, and Circumstellar Gas – Dust Disks Various types of scattering particles (e.g. aerosols, ice crystals, regolith surfaces of atmosphereless solar system bodies, dust grains of comets and the circumstellar environment of various composition and morphology) exhibit characteristic polarization properties in scattered light. As a

Kravtsova A.S. – Sternberg Astronomical Institute, Moscow State University (SAI MSU) Photometric approach to the observation of taxonomic characteristics of asteroids. With the help of multicolor photometry methods used to observe star catalogs, the possibility of obtaining rough spectra of asteroids without reference to solar analogs is shown. The resulting spectra allow for an accurate classification of

Author: A.A. Ibragimov – Institute of Astrophysics of National Academy of Sciences of Tajikistan Title:Cometocentric coordinates of the tail of comets C/2014 Q2 (Lovejoy) and C/2019 Y4 (ATLAS) Abstract: The paper presents an algorithm for determining cometocentric coordinates using the Stumpf method. The measurement errors and conditions that increase the accuracy of the perspective projection of the

Abstract: Currently, considerable attention is being paid to the problem of asteroid-comet hazard. This is largely due to the development of observational tools that allow the discovery of thousands of near-Earth asteroids annually. One of the most important tasks is to predict possible impacts with the Earth. In addition, a number of spacecrafts are operating on the Moon

Speaker:M.A. Ivanova – Vernadsky Institute of Geochemistry and Analytical Chemistry of Russian Academу of Sciences Title: The first solid material formed in the Solar system Abstract: The first solid material formed in the Solar system preserved traces of the earliest chemical and isotopic fractionation in the protoplanetary disk. It is represented by refractory Ca, Al- inclusions (CAIs),

Speaker: B.M. Shustov, R.V. Zolotarev (Institute of Astronomy of the Russian Academy of Sciences) Title: THE MASS INDEX OF METEOR BODIES AND THE EVOLUTION OF METEOROID STREAMS Abstract: It is known from observations that the mass spectra of meteor bodies (meteoroids) causing the phenomena of sporadic meteors and bodies in meteor showers in differential form

1) Speaker: RAKHMATULLAEVA Firuza Jamshedovna Title: Investigation of the dynamic and physical properties of a sample of active minor bodies of the Solar system based on optical observations Abstract: The results of a study of minor bodies of the Solar system showing activity that is not characteristic of them will be presented. The purpose of

The seminar will be held by Zoom. 1) Speaker: G.O. Ryabova, Research Institute of Applied Mathematics and Mechanics, Tomsk State University Title:Mathematical modelling of the formation and evolution of meteoroid streams Abstract: The study of the origin and evolution of meteoroid streams is a sub-problem of the main problem of meteor astronomy, namely, to determine