21 citations · 40 across the 4 of their papers we have counts for
6 papers
Collinder 135 and UBC 7: A Physical Pair of Open Clusters
Dana Kovaleva, Marina Ishchenko, Ekaterina Postnikova +7
Given the closeness of the two open clusters Cr 135 and UBC 7 on the sky, we investigate the possibility of the two clusters to be physically related. We aim to recover the present…
Statistical relations between stellar spectral and luminosity classes and stellar effective temperature and surface gravity
O. Yu. Malkov, D. A. Kovaleva, S. G. Sichevsky +1
We have determined new statistical relations to estimate the fundamental atmospheric parameters of effective temperature and surface gravity, using MK spectral classification, and…
Verification of Photometric Parallaxes with Gaia DR2 Data
Oleg Malkov, Sergey Karpov, Dana Kovaleva +10
Results of comparison of Gaia DR2 parallaxes with data derived from a combined analysis of 2MASS (Two Micron All-Sky Survey), SDSS (Sloan Digital Sky Survey), GALEX (Galaxy Evoluti…
Binary Star Database (BDB): New Developments and Applications
Oleg Malkov, Aleksey Karchevsky, Pavel Kaygorodov +2
Binary star DataBase (BDB) is the database of binary/multiple systems of various observational types. BDB contains data on physical and positional parameters of 260,000 components…
A preliminary comparison of photometric (MWSC) and trigonometric (TGAS) distances of open cluster stars
Dana Kovaleva, Anatoly Piskunov, Nina Kharchenko +1
Our goal was to compare the open cluster photometric distance scale of the global survey of star clusters in the Milky Way (MWSC) with the distances derived from trigonometric para…
Open star clusters in the Milky Way - Comparison of photometric and trigonometric distance scales based on Gaia TGAS data
Dana A. Kovaleva, Anatoly E. Piskunov, Nina V. Kharchenko +5
The global survey of star clusters in the Milky Way (MWSC) is a comprehensive list of 3061 objects that provides, among other parameters, distances to clusters based on isochrone f…