217 citations · 1.9k across the 83 of their papers we have counts for
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Verifying reddening and extinction for Gaia DR1 TGAS main sequence stars
George Gontcharov, Aleksandr Mosenkov
We compare eight sources of reddening and extinction estimates for approximately 60,000 {\it Gaia} DR1 Tycho--Gaia Astrometric Solution (TGAS) main sequence stars younger than 3~Gy…
3D Reddening and Extinction Maps at the Beginning of the Gaia Era
George Gontcharov, Aleksandr Mosenkov
The vast majority of Gaia DR1 Tycho-Gaia astrometric solution (TGAS) stars are located within a distance of 1200 pc from the Sun and up to 600 pc within the Galactic plane. Complet…
Measuring the X-shaped structures in edge-on galaxies
S. S. Savchenko, N. Ya. Sotnikova, A. V. Mosenkov +2
We present a detailed photometric study of a sample of 22 edge-on galaxies with clearly visible X-shaped structures. We propose a novel method to derive geometrical parameters of t…
On the discrepancy between asteroseismic and Gaia DR1 TGAS parallaxes
George Gontcharov, Aleksandr Mosenkov
Recently, a deviation of the Gaia TGAS parallaxes from the asteroseismic ones for giants was found. We show that for parallaxes mas it can be explained by a selection…