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pro vyhledávání: '"Dmitry Chulkov"'
Autor:
Dmitry Chulkov
Publikováno v:
The Astronomical Journal, Vol 168, Iss 4, p 156 (2024)
The list of 409 probable cluster members down to G = 15 ^mag ( m ≳ 0.5 M _⊙ ) is compiled for the two degree radius of the Pleiades, based on astrometric data from Gaia DR3 and the PPMXL catalog, along with several radial velocity surveys, includ
Externí odkaz:
https://doaj.org/article/a69c6760696b40a396459450e7086b7f
Autor:
Oleg Malkov, Sergey Karpov, Dana Kovaleva, Sergey Sichevsky, Dmitry Chulkov, Olga Dluzhnevskaya, Alexey Kniazev, Areg Mickaelian, Alexey Mironov, Jayant Murthy, Alexey Sytov, Gang Zhao, Aleksandr Zhukov
Publikováno v:
Galaxies, Vol 7, Iss 1, p 7 (2018)
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 Evolution Explorer), and UKIDSS (UKIRT Infrared Deep Sky Survey) surveys in f
Externí odkaz:
https://doaj.org/article/b0f485b3c6e946228cff4f4e04e70ea6
Autor:
Dmitry Chulkov
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 501:769-783
An all-sky sample of 1227 visual binaries based on Washington Double Star catalogue is constructed to infer the IMF, mass ratio, and projected distance distribution with a dedicated population synthesis model. Parallaxes from Gaia DR2 and Hipparcos a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e7892b589cb3c5aa35e7abb44456140e
https://doi.org/10.1093/mnras/staa3601
https://doi.org/10.1093/mnras/staa3601
Autor:
Dmitry Chulkov, Oleg Malkov
3350 objects from the Sixth catalog of orbits of visual binary stars (ORB6) are investigated to validate Gaia EDR3 parallaxes and provide mass estimates for the systems. We show that 2/3 of binaries with 0.2 - 0.5 arcsec separation are left without a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::23b973d29dfb5be5c857d429486d9692
