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Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system
- G. Gontcharov
- Physics
- 1 November 2006
The Pulkovo Compilation of Radial Velocities (PCRV) has been made to study the stellar kinematics in the local spiral arm. The PCRV contains weighted mean absolute radial velocities for 35 495… Expand
Radial velocities of 35 495 Hipparcos stars in a common system
- G. Gontcharov
- Physics
- 1 April 2006
The Pulkovo Compilation of Radial Velocities (PCRV) catalogue has been produced to study stellar kinematics in the local spiral arm. The PCRV contains the mean weighted absolute radial velocities of… Expand
Investigation of the Galactic bar based on photometry and stellar proper motions
- V. Bobylev, A. Mosenkov, A. Bajkova, G. Gontcharov
- Physics
- 13 February 2014
A new method for selecting stars in the Galactic bar based on 2MASS infrared photometry in combination with stellar proper motions from the Kharkiv XPM catalogue has been implemented. In accordance… Expand
3D stellar reddening map from 2MASS photometry: An improved version
- G. Gontcharov
- Physics
- 11 June 2017
An improved version of the 3D stellar reddening map in a space with a radius of 1200 pc around the Sun and within 600 pc of the Galactic midplane is presented. As in the previous 2010 and 2012… Expand
Variations of the interstellar extinction law within the nearest kiloparsec
- G. Gontcharov
- Physics
- 30 June 2016
Multicolor photometry from the Tycho-2 and 2MASS catalogues for 11 990 OB and 30 671 K-type red giant branch stars is used to detect systematic large-scale variations of the interstellar extinction… Expand
Systematic error of the Gaia DR1 TGAS parallaxes from data for the red giant clump
- G. Gontcharov
- Physics
- 29 June 2017
Based on the Gaia DR1 TGAS parallaxes and photometry from the Tycho-2, Gaia, 2MASS, andWISE catalogues, we have produced a sample of ~100 000 clump red giants within ~800 pc of the Sun. The… Expand
The proper motions of fundamental stars - I. 1535 stars from the Basic FK5
- G. Gontcharov, A. Andronova, O. Titov, E. V. Kornilov
- Physics
- 2001
A direct combination of the positions given in the HIPPARCOS catalogue with astrometric ground-based catalogues having epochs later than 1939 allows us to obtain new proper motions for the 1535 stars… Expand
Interstellar polarization and extinction in the Local Bubble and the Gould Belt
- G. Gontcharov, A. Mosenkov
- Physics
- 4 November 2018
We analyse an all-sky compilation of thirteen data sources with optical interstellar linear polarisation for 3871 {\it Gaia} DR2 and {\it Hipparcos} stars within 500 pc, which do not exhibit a… Expand
Investigation of the negative K effect using the Orion Spiral Arm Catalogue
- V. Bobylev, A. Bajkova, G. Gontcharov
- Physics
- 1 April 2006
We created and are constantly updating the Orion Spiral Arm Catalogue for stars with known coordinates, parallaxes, proper motions and radial velocities. It is shown that there is an effect of… Expand
Spatial distribution and kinematics of OB stars
- G. Gontcharov
- Physics
- 29 June 2016
The sample of 37 485 suspected OB stars selected by Gontcharov (2008) from the Tycho-2 catalogue has been cleaned of the stars that are not of spectral types OV-A0V. For this purpose, the apparent… Expand
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