Journal article
TOI-431/HIP 26013: a super-Earth and a sub-Neptune transiting a bright, early K dwarf, with a third RV planet
Abstract
ABSTRACT We present the bright (Vmag = 9.12), multiplanet system TOI-431, characterized with photometry and radial velocities (RVs). We estimate the stellar rotation period to be 30.5 ± 0.7 d using archival photometry and RVs. Transiting Exoplanet Survey Satellite (TESS) objects of Interest (TOI)-431 b is a super-Earth with a period of 0.49 d, a radius of 1.28 ± 0.04 R⊕, a mass of 3.07 ± 0.35 M⊕, and a density of 8.0 ± 1.0 g cm−3; TOI-431 d is …
Authors
Osborn A; Armstrong DJ; Cale B; Brahm R; Wittenmyer RA; Dai F; Crossfield IJM; Bryant EM; Adibekyan V; Cloutier R
Journal
Monthly Notices of the Royal Astronomical Society, Vol. 507, No. 2, pp. 2782–2803
Publisher
Oxford University Press (OUP)
Publication Date
September 2, 2021
DOI
10.1093/mnras/stab2313
ISSN
0035-8711