335 citations · 994 across the 51 of their papers we have counts for
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Red Giant Clump in the Tycho-2 Catalogue
George Gontcharov
The Tycho-2 proper motions and Tycho-2 and 2MASS photometry are used to select 97348 red giant clump (RGC) stars. The interstellar extinction and photometric distance are calculate…
The Red Giant Branch in the Tycho-2 Catalogue
George Gontcharov
Based on multicolor photometry from the 2MASS and Tycho-2 catalogues, we have produced a sample of 38 368 branch red giants that has less than 1\% of admixtures and is complete wit…
Three-Dimensional Reddening Map for Stars from 2MASS Photometry: The Method and the First Results
George Gontcharov
The first results of the construction of a 3D reddening map for stars within 1600 pc of the Sun are presented. Analysis of the distribution of 70 million stars from the 2MASS catal…
Influence of the Gould Belt on Interstellar Extinction
George Gontcharov
A new analytical 3D model of interstellar extinction within 500 pc of the Sun as a function of the Galactic spherical coordinates is suggested. This model is physically more justif…
3D Interstellar Extinction Map within the Nearest Kiloparsec
George Gontcharov
The product of the previously constructed 3D maps of stellar reddening (Gontcharov 2010) and variations (Gontcharov 2012) has allowed us to produce a 3D interstellar extincti…
Variations of the Interstellar Extinction Law within the Nearest Kiloparsec
George Gontcharov
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 inters…