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Gill, Samuel; Cooke, Benjamin F; Bayliss, Daniel; Nielsen, Louise D; Lendl, Monika; Wheatley, Peter J; Anderson, David R; Moyano, Maximiliano; Bryant, Edward M; Acton, Jack S; Belardi, Claudia; Bouchy, François; Burleigh, Matthew R; Casewell, Sarah L; Chaushev, Alexander; Goad, Michael R; Jackman, James A G; Jenkins, James S; McCormac, James; Günther, Maximilian N; Osborn, Hugh P; Pollacco, Don; Raynard, Liam; Smith, Alexis M S; [...]

A long-period (P = 61.8 d) M5V dwarf eclipsing a Sun-like star from TESS and NGTS

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  • Medientyp: E-Artikel
  • Titel: A long-period (P = 61.8 d) M5V dwarf eclipsing a Sun-like star from TESS and NGTS
  • Beteiligte: Gill, Samuel; Cooke, Benjamin F; Bayliss, Daniel; Nielsen, Louise D; Lendl, Monika; Wheatley, Peter J; Anderson, David R; Moyano, Maximiliano; Bryant, Edward M; Acton, Jack S; Belardi, Claudia; Bouchy, François; Burleigh, Matthew R; Casewell, Sarah L; Chaushev, Alexander; Goad, Michael R; Jackman, James A G; Jenkins, James S; McCormac, James; Günther, Maximilian N; Osborn, Hugh P; Pollacco, Don; Raynard, Liam; Smith, Alexis M S; [...]
  • Erschienen: Oxford University Press (OUP), 2020
  • Erschienen in: Monthly Notices of the Royal Astronomical Society
  • Sprache: Englisch
  • DOI: 10.1093/mnras/staa1248
  • ISSN: 0035-8711; 1365-2966
  • Entstehung:
  • Anmerkungen:
  • Beschreibung: <jats:title>ABSTRACT</jats:title> <jats:p>The Transiting Exoplanet Survey Satellite has produced a large number of single-transit event candidates which are being monitored by the Next Generation Transit Survey (NGTS). We observed a second epoch for the TIC-231005575 system (Tmag = 12.06 and $T_{\rm eff} = 5500 \pm 85\, \mathrm{ K}$) with NGTS and a third epoch with Las Cumbres Observatory’s telescope in South Africa to constrain the orbital period ($P = 61.777\, \mathrm{ d}$). Subsequent radial velocity measurements with CORALIE revealed the transiting object has a mass of M2 = 0.128 ± 0.003 M⊙, indicating the system is a G-M binary. The radius of the secondary is R2 = 0.154 ± 0.008 R⊙ and is consistent with mesa models of stellar evolution to better than 1σ.</jats:p>
  • Zugangsstatus: Freier Zugang