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Lendl, Monika; Bouchy, François; Gill, Samuel; Nielsen, Louise D; Turner, Oliver; Stassun, Keivan; Acton, Jack S; Anderson, David R; Armstrong, David J; Bayliss, Daniel; Belardi, Claudia; Bryant, Edward M; Burleigh, Matthew R; Chaushev, Alexander; Casewell, Sarah L; Cooke, Benjamin F; Eigmüller, Philipp; Gillen, Edward; Goad, Michael R; Günther, Maximilian N; Hagelberg, Janis; Jenkins, James S; Louden, Tom; Marmier, Maxime; [...]

TOI-222: a single-transit TESS candidate revealed to be a 34-d eclipsing binary with CORALIE, EulerCam, and NGTS

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  • Medientyp: E-Artikel
  • Titel: TOI-222: a single-transit TESS candidate revealed to be a 34-d eclipsing binary with CORALIE, EulerCam, and NGTS
  • Beteiligte: Lendl, Monika; Bouchy, François; Gill, Samuel; Nielsen, Louise D; Turner, Oliver; Stassun, Keivan; Acton, Jack S; Anderson, David R; Armstrong, David J; Bayliss, Daniel; Belardi, Claudia; Bryant, Edward M; Burleigh, Matthew R; Chaushev, Alexander; Casewell, Sarah L; Cooke, Benjamin F; Eigmüller, Philipp; Gillen, Edward; Goad, Michael R; Günther, Maximilian N; Hagelberg, Janis; Jenkins, James S; Louden, Tom; Marmier, Maxime; [...]
  • Erschienen: Oxford University Press (OUP), 2020
  • Erschienen in: Monthly Notices of the Royal Astronomical Society
  • Sprache: Englisch
  • DOI: 10.1093/mnras/stz3545
  • ISSN: 0035-8711; 1365-2966
  • Schlagwörter: Space and Planetary Science ; Astronomy and Astrophysics
  • Entstehung:
  • Anmerkungen:
  • Beschreibung: <jats:title>ABSTRACT</jats:title> <jats:p>We report the period, eccentricity, and mass determination for the Transiting Exoplanet Survey Satellite (TESS) single-transit event candidate TOI-222, which displayed a single 3000 ppm transit in the TESS 2-min cadence data from Sector 2. We determine the orbital period via radial velocity measurements (P = 33.9 d), which allowed for ground-based photometric detection of two subsequent transits. Our data show that the companion to TOI-222 is a low-mass star, with a radius of $0.18_{-0.10}^{+0.39}$ R⊙ and a mass of 0.23 ± 0.01 M⊙. This discovery showcases the ability to efficiently discover long-period systems from TESS single-transit events using a combination of radial velocity monitoring coupled with high-precision ground-based photometry.</jats:p>
  • Zugangsstatus: Freier Zugang