Search Publications
Orbits of 47 dwarf satellite galaxies of the Milky Way in three models of the gravitational potential with different masses
Bobylev, V. V.; Bajkova, A. T.
The analysis of the orbits of 47 dwarf satellite galaxies of the Milky Way, built using three models of the galactic gravitational potential with different masses, is presented. The models of the galactic potential were chosen based on the analysis of a large number of the Galaxy mass estimates known from the literature. The astrometric data neede…
Comprehensive list of semi-detached double-lined eclipsing binaries with Gaia DR2 data
Malkov, O. Yu.
Semi-detached eclipsing systems play an important role in our understanding of stellar properties. In the present study, we have cross-matched a previously compiled comprehensive list of SD double-lined eclipsing binaries, containing 119 systems, with Gaia DR2, and analyze the result. A special analysis is conducted for systems with controversial …
Trace species in planetary atmospheres: Some results of TGO ExoMars
Korablev, O. I.
The presence of life alters the composition of a planet's atmosphere. This thesis, formulated back in the 1960s, is now gaining importance. The discovery or even suspicion of chemically non-equilibrium compounds in the atmosphere of another planets can infl uence space policies. The report reviews the discovery of phosphine on Venus and its possib…
Multiwavelength search for and studies of active galaxies
Mickaelian, A. M.; Abrahamyan, H. V.; Paronyan, G. M. +4 more
We present surveys and related studies of active galaxies carried out at the NAS RA V.Ambartsumian Byurakan Astrophysical Observatory (BAO). This has been one of the main research subjects at BAO for many years since the mid-1950s, when Viktor Ambartsumian suggested the hypothesis of the activity of the galactic nuclei. A number of surveys of and …
Investigation of relative motion in the triple system ADS 48 on the basis of Gaia DR2 and Pulkovo 26-inch refractor observations
Zhuchkov, R. Ya.; Kiyaeva, O. V.; Izmailov, I. S.
There are high-precision positions, proper motions, parallaxes and radial velocities at the instant 2015.5 for all three components of the star ADS 48 ABF in the catalog Gaia DR2 (2018). According to these data relative motions and the family of orbits were calculated by the Apparent Motion Parameters (AMP) method (Kiselev and Kiyaeva,1980), and t…