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Detection of 12 426 SB2 candidates in the LAMOST-MRS, using a binary spectral modelстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Kovalev Mikhail, Zenghua Zhou, Xuefei Chen, Zhanwen Han
- Журнал: Monthly Notices of the Royal Astronomical Society
- Том: 527
- Номер: 1
- Год издания: 2023
- Издательство: Oxford Journals, Oxford University Press
- Местоположение издательства: Oxford, UK, England
- Первая страница: 521
- Последняя страница: 530
- DOI: 10.1093/mnras/stad3222
- Аннотация: We use an updated method for the detection of double-lined spectroscopic binaries (SB2s) using Vsin i values from spectral fits. The method is applied to all spectra from Large sky Area Multi-Object fiber Spectroscopic Telescope Medium Resolution Survey. Using this method, we detect 12 426 SB2 candidates, where 4321 are already known and 8105 are new discoveries. We check their spectra manually to minimize possible false positives. We also detect several cases of contamination of the spectra by solar light. Additionally, for candidates with multiple observations, we compute mass ratios with systemic velocities and determine Keplerian orbits. We present an updated catalogue of all SB2 candidates together with additional information for some of them in separate data tables.
- Добавил в систему: Ковалёв Михаил Юрьевич