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Kinematic and dynamic properties of young stellar cluster IC 348

Nikoghosyan, E. H.; Azatyan, N. M.; Harutyunian, H. A. +1 more

In 30 - 40s of the last century Viktor Ambartsumian has published several studies on the kinematics and dynamics of stellar systems. The scientific issues of these papers not only remain relevant up to nowadays, but also are of key importance for the construction of the generalized theory of star formation. The launch of the Gaia spacecraft on Dec…

Identifying birth places of high-velocity stars

Hambaryan, V.

We searched for the high-velocity and isolated neutron stars that encountered in the past with a stellar cluster/association closer than 20 pc. We took about 830000 stars with the high-quality astrometry and radial velocities from the Gaia DR2 catalogue and empirically selected about 560 high-velocity stars. We used a full gravitational potential …

Revised and updated catalogue of the First Byurakan Survey of late-type stars: 2nd edition

Gigoyan, K. S.; Kostandyan, G. R.; Mickaelian, A. M.

Eighteen lists of late-type stars (LTSs) have been published between 1990 and 2016. These LTSs have been found in the low-dispersion spectroscopic plates of the First Byurakan Survey (FBS). The systematic search and selection was carried out on a surface _16000 deg2 on almost the whole area of the FBS. As a result, “Revised and Updated Catalogue o…