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Flares activity of selected stars from GTSh10 catalog by CRTS data

Gorbachev, M. A.; Shlyapnikov, A. A.

Based on the database of photometric observations of the CRTS project over an interval of more than 9 years, the activity of red dwarfs from the GTSh10 catalog was analyzed. The total number of analyzed objects, a list ares, amplitudes and moments of recorded events are presented. For the most interesting objects, from the point of view are activi…

Refined proper motions of some high-velocity stars

Dambis, A. K.; Rastorguev, A. S.; Zhuiko, S. V.

We improve the Gaia DR2 proper motions of nine high-velocity stars with the highest proper-motion errors. We reduce the transversal-velocity errors for our stars from to 1.5-746 km/s. We combine our refined proper motions with published radial-velocity and distance data to compute the orbits of these stars in terms of the axisymmetric potential mo…