718 citations · 3.4k across the 36 of their papers we have counts for
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Shape parameters of Galactic open clusters
N. V. Kharchenko, P. Berczik, M. I. Petrov +4
(abridged) In this paper we derive observed and modelled shape parameters (apparent ellipticity and orientation of the ellipse) of 650 Galactic open clusters identified in the ASCC…
An extremely wide and very low-mass pair with common proper motion. Is it representative of a nearby halo stream?
R. -D. Scholz, N. V. Kharchenko, N. Lodieu +1
(abridged) We describe the discovery of an extremely wide pair of low-mass stars with a common large proper motion and discuss their possible membership in a Galactic halo stream c…
The initial luminosity and mass functions of the Galactic open clusters
A. E. Piskunov, N. V. Kharchenko, E. Schilbach +3
(... abridged) The observed luminosity function can be constructed in a range of absolute integrated magnitudes mag, i.e. about 5 magnitudes deeper than in t…
PPM-Extended (PPMX) - a catalogue of positions and proper motions
S. Roeser, E. Schilbach, H. Schwan +3
Aims: We build a catalogue PPM-Extended (PPMX) on the ICRS system which is complete down to a well-defined limiting magnitude and contains the best presently available proper motio…
Astrophysical supplements to the ASCC-2.5. Ia. Radial velocities of about 55000 stars and mean radial velocities of 516 Galactic open clusters and associations
N. V. Kharchenko, R. -D. Scholz, A. E. Piskunov +2
We present the 2nd version of the Catalogue of Radial Velocities with Astrometric Data (CRVAD-2). This is the result of the cross-identification of stars from the All-Sky Compiled…
Towards absolute scales of radii and masses of open clusters
A. E. Piskunov, E. Schilbach, N. V. Kharchenko +2
Aims: In this paper we derive tidal radii and masses of open clusters in the nearest kiloparsecs around the Sun. Methods: For each cluster, the mass is estimated from tidal radii d…