A long period (P = 61.8-d) M5V dwarf eclipsing a Sun-like star from TESS and NGTS
| Autor: | Michael R. Goad, Jack S. Acton, Maximilian N. Günther, Samuel Gill, Maximiliano Moyano, Monika Lendl, Fracois Bouchy, Stéphane Udry, Claudia Belardi, Daniel Bayliss, Peter J. Wheatley, Alexander Chaushev, Sarah L. Casewell, Matthew R. Burleigh, David R. Anderson, Rossana H. Tilbrook, Oliver Turner, Christopher A. Watson, Richard G. West, James McCormac, Alexis M. S. Smith, James A. G. Jackman, Don Pollacco, James S. Jenkins, Edward M. Bryant, Louise D. Nielsen, Liam Raynard, Jose I. Vines, H. P. Osborn, Benjamin F. Cooke |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Physics
Extrasolare Planeten und Atmosphären Earth and Planetary Astrophysics (astro-ph.EP) 010308 nuclear & particles physics binaries: eclipsing FOS: Physical sciences Astronomy and Astrophysics 01 natural sciences Astrophysics - Solar and Stellar Astrophysics eclipsing [binaries] Space and Planetary Science Long period 0103 physical sciences 010303 astronomy & astrophysics Humanities Solar and Stellar Astrophysics (astro-ph.SR) Astrophysics - Earth and Planetary Astrophysics |
| Zdroj: | Gill, S, Cooke, B F, Bayliss, D, Nielsen, L D, Lendl, M, Wheatley, P J, Anderson, D R, Moyano, M, Bryant, E M, Acton, J S, Belardi, C, Bouchy, F, Burleigh, M R, Casewell, S L, Chaushev, A, Goad, M R, Jackman, J A G, Jenkins, J S, McCormac, J, Günther, M N, Osborn, H P, Pollacco, D, Raynard, L, Smith, A M S, Tilbrook, R H, Turner, O, Udry, S, Vines, J I, Watson, C A & West, R G 2020, ' A long period (P = 61.8-d) M5V dwarf eclipsing a Sun-like star from TESS and NGTS ', Monthly Notices of the Royal Astronomical Society, Advance Access . https://doi.org/10.1093/mnras/staa1248 |
| Popis: | 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 |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|