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TIC 168789840: a sextuply eclipsing sextuple star system
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SYSNO ASEP 0551300 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title TIC 168789840: a sextuply eclipsing sextuple star system Author(s) Powell, B. P. (US)
Kostov, V. B. (US)
Rappaport, S. A. (US)
Mašek, Martin (FZU-D) ORCIDNumber of authors 51 Article number 162 Source Title Astronomical Journal. - : Institute of Physics Publishing - ISSN 0004-6256
Roč. 161, č. 4 (2021)Number of pages 20 s. Language eng - English Country US - United States Keywords eclipsing binary stars ; transit photometry ; multiple stars ; astronomy data analysis ; astrophysics - solar and stellar astrophysics Subject RIV BN - Astronomy, Celestial Mechanics, Astrophysics OECD category Astronomy (including astrophysics,space science) R&D Projects LTT18004 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) EF16_013/0001402 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LM2018102 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Open access Institutional support FZU-D - RVO:68378271 UT WOS 000625403700001 EID SCOPUS 85102588819 DOI 10.3847/1538-3881/abddb5 Annotation We report the discovery of a sextuply eclipsing sextuple star system from TESS data, TIC 168789840, also known as TYC 7037-89-1, the first known sextuple system consisting of three eclipsing binaries. The target was observed in Sectors 4 and 5 during Cycle 1, with lightcurves extracted from TESS Full Frame Image data. It was also previously observed by the WASP survey and ASAS-SN. The system consists of three gravitationally bound eclipsing binaries in a hierarchical structure of an inner quadruple system with an outer binary subsystem. Follow-up observations from several different observatories were conducted as a means of determining additional parameters. The system was resolved by speckle interferometry with a 0''42 separation between the inner quadruple and outer binary, inferring an estimated outer period of ∼2 kyr. It was determined that the fainter of the two resolved components is an 8.217 day eclipsing binary, which orbits the inner quadruple that contains two eclipsing binaries with periods of 1.570 days and 1.306 days. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2022 Electronic address http://hdl.handle.net/11104/0326726
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