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Catalog of wide binary, trinary and quaternary candidates from the Gaia data release 2 (Region |b| > 25°)
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SYSNO ASEP 0566747 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Catalog of wide binary, trinary and quaternary candidates from the Gaia data release 2 (Region |b| > 25°) Author(s) Závada, Petr (FZU-D) RID, ORCID
Píška, Karel (FZU-D) RID, ORCIDNumber of authors 2 Article number 33 Source Title Astronomical Journal. - : Institute of Physics Publishing - ISSN 0004-6256
Roč. 163, č. 1 (2022)Number of pages 15 s. Language eng - English Country US - United States Keywords Gaia-ESA ; 2D patterns ; galactic latitude Subject RIV BE - Theoretical Physics OECD category Particles and field physics R&D Projects LTT17018 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Open access Institutional support FZU-D - RVO:68378271 UT WOS 000733001400001 EID SCOPUS 85122643134 DOI 10.3847/1538-3881/ac34f9 Annotation The occurrence of multiple stars, dominantly binaries, is studied using the Gaia-ESA DR2 catalog. We apply the optimized statistical method that we previously developed for the analysis of 2D patterns. The field of stars is divided into a mosaic of small pieces that represent a statistical set for analysis. Specifically, data input is represented by a grid of circles (events) with radius 0.°02 covering the sky in the field of galactic latitude ∣b∣ > 25°. The criteria for selecting candidates for multiple stars are based on two parameters: angular separation and collinearity of proper motion. Radial separation, due to limited accuracy, is used only as a weaker supplementary constraint. Due attention is paid to the accurate calculation of the background, which is a necessary input for evaluating the quality of the candidates. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2023 Electronic address https://hdl.handle.net/11104/0338037
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