Journal article
The LHS 1678 System: Two Earth-sized Transiting Planets and an Astrometric Companion Orbiting an M Dwarf Near the Convective Boundary at 20 pc
Abstract
We present the Transiting Exoplanet Survey Satellite (TESS) discovery of the LHS 1678 (TOI-696) exoplanet system, comprised of two approximately Earth-sized transiting planets and a likely astrometric brown dwarf orbiting a bright (V J = 12.5, K s = 8.3) M2 dwarf at 19.9 pc. The two TESS-detected planets are of radius 0.70 ± 0.04 R ⊕ and 0.98 ± 0.06 R ⊕ in 0.86 day and 3.69 day orbits, respectively. Both planets are validated and characterized …
Authors
Silverstein ML; Schlieder JE; Barclay T; Hord BJ; Jao W-C; Vrijmoet EH; Henry TJ; Cloutier R; Kostov VB; Kruse E
Journal
The Astronomical Journal, Vol. 163, No. 4,
Publisher
American Astronomical Society
Publication Date
April 1, 2022
DOI
10.3847/1538-3881/ac32e3
ISSN
0004-6256