학술논문
A long period (P = 61.8-d) M5V dwarf eclipsing a Sun-like star from TESS and NGTS
Document Type
Working Paper
Author
Gill, Samuel; Cooke, Benjamin F.; Bayliss, Daniel; Nielson, Louise D.; Lendl, Monika; Wheatley, Peter J.; Anderson, David R.; Moyano, Maximiliano; Bryant, Edward M.; Acton, Jack S.; Belardi, Claudia; Bouchy, Francois; Burleigh, Matthew R.; Casewell, Sarah L.; Chausev, Alexander; Goad, Michael R.; Jackman, James A. G.; Jenkins, James S.; McCormac, James; Gunther, Maximilian N.; Osborn, Hugh P.; Pollaco, Don; Raynard, Liam; Smith, Alexis M. S.; Tillbrook, Rosanna H.; Turner, Oliver; Udry, Stephane; Vines, Jose I.; Watson, Christopher A.; West, Richard G.
Source
Subject
Language
Abstract
The Transiting Exoplanet Survey Satellite (TESS) 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, Teff = 5500 +- 85 K) with NGTS and a third epoch with Las Cumbres Observatory's (LCO) telescope in South Africa to constrain the orbital period (P = 61.777 d). Subsequent radial velocity measurements with CORALIE revealed the transiting object has a mass of M2 = 0.128 +- 0.003 M$_\odot$, indicating the system is a G-M binary. The radius of the secondary is R2 = 0.154 +- 0.008 R$_\odot$ and is consistent with models of stellar evolution to better than 1-$\sigma$.
Comment: 8 pages, 5 figures, 3 tables. Accepted for publication in MNRAS
Comment: 8 pages, 5 figures, 3 tables. Accepted for publication in MNRAS