Subject: catalogs / Publisher: The GAVO DC team - STScI NAVO Directory Search Results

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ID:: ivo://org.gavo.dc/gcns/q/cone
Title:: The Gaia eDR3 Catalogue of Nearby Stars GCNS
Short Name:: eDR3 GCNS SCS
Date:: 27 Dec 2024 08:31:02
Publisher:: The GAVO DC team
Description:: This is a clean and well characterised catalogue of objects within 100pc of the Sun from the Gaia early third data release. We characterise the catalogue using the full data release, and comparisons to other catalogues in literature and simulations. For all candidates (measured parallax < 8 mas), we calculate a distance probability function using Bayesian procedures and mock catalogues for the prediction of the priors. For each entry using a random forest classifier we attempt to remove sources with spurious astrometric solutions. This results in 331312 objects that should contain at least 92% of stars within 100 pc at spectral type M9. GCNS comes with several auxiliary tables, in particular lists of resolved stellar systems, of known neary stars not found in eDR3 and of candidates of Hyades and ComaBer cluster members.

ID:: ivo://org.gavo.dc/ucdc/q/cone
Title:: Ultracool Dwarf Companion Catalogue UCDC
Short Name:: UCDC cone
Date:: 27 Dec 2024 08:31:03
Publisher:: The GAVO DC team
Description:: The Ultracool Dwarf Companion Catalogue consists of 278 multiple systems, 32 of which are newly discovered, each with at least one spectroscopically confirmed Ultracool Dwarf, within a 100 pc volume-limited sample. This catalogue is compiled using the Gaia Catalogue of Nearby Stars for stellar primaries and the Gaia Ultracool Dwarf Sample for low-mass companions and includes 241 doubles, 33 triples, and 4 higher-order systems established from positional, proper motion, and parallax constraints.

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