Citizen scientists helped find 97 quadruple star systems in TESS data. Researchers think they can learn a lot about stellar evolution from these systems.
NASA’s Transiting Exoplanet Survey Satellite has found over 5000 candidate exoplanet candidates, and 197 confirmed exoplanets since its mission began in late 2018. TESS is good at finding exoplanets, but the spacecraft is a powerful scientific platform, and it’s made other discoveries, too. Scientists working with TESS recently announced 97 quadruple star candidates, nearly doubling the number of known quadruple systems.
According to a new paper, the latest results from TESS data is a catalogue of 97 “…uniformly-vetted candidates for quadruple star systems,” according to a new paper. The paper is “97 Eclipsing Quadruple Star Candidates Discovered in TESS Full Frame Images.” The paper is available at the pre-press site arxiv.org and will be published in The Astrophysical Journal Supplement. The paper’s lead author is Veselin Kostov from NASA’s Goddard Space Flight Center.
To find these systems, it took a collaboration between some of the usual suspects—the NASA Goddard Space Flight Center Astrophysics Science Division and the MIT Kavli Institute. But the professionals at those research institutions needed some help. That help came from seven experienced citizen scientists who assisted in the painstaking effort of pixel-by-pixel analysis of light curves.
Quadruple star systems contain two pairs of eclipsing binary stars. However, they’re only EBs if they eclipse one another from our vantage point. All those transits and eclipses can be difficult to entangle, which explains the helping hand from dedicated citizen scientists.
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