TESS discovery of a super-earth and three sub-neptunes hosted by the bright, sunlike star HD 108236
- Daylan, T.
- Pinglé, K.
- Wright, J.
- Günther, M.N.
- Stassun, K.G.
- Kane, S.R.
- Vanderburg, A.
- Jontof, D.
- Rodriguez, J.E.
- Shporer, A.
- Huang, C.X.
- Mikal-Evans, T.
- Badenas-Agusti, M.
- Collins, K.A.
- Rackham, B.V.
- Quinn, S.N.
- Cloutier, R.
- Collins, K.I.
- Guerra, P.
- Jensen, E.L.N.
- Kielkopf, J.F.
- Massey, B.
- Schwarz, R.P.
- Charbonneau, D.
- Lissauer, J.J.
- Irwin, J.M.
- Bastürk, Ö.
- Fulton, B.
- Soubkiou, A.
- Zouhair, B.
- Howell, S.B.
- Ziegler, C.
- Briceño, C.
- Law, N.
- Mann, A.W.
- Scott, N.
- Furlan, E.
- Ciardi, D.R.
- Matson, R.
- Hellier, C.
- Anderson, D.R.
- Butler, R.P.
- Crane, J.D.
- Teske, J.K.
- Shectman, S.A.
- Kristiansen, M.H.
- Terentev, I.A.
- Schwengeler, H.M.
- Ricker, G.R.
- Vanderspek, R.
- Seager, S.
- Winn, J.N.
- Jenkins, J.M.
- Berta-Thompson, Z.K.
- Bouma, L.G.
- Fong, W.
- Furesz, G.
- Henze, C.E.
- Morgan, E.H.
- Quintana, E.
- Ting, E.B.
- Twicken, J.D.
DOIAbstract
We report the discovery and validation of four extrasolar planets hosted by the nearby, bright, Sun-like (G3V) star HD 108236 using data from the Transiting Exoplanet Survey Satellite (TESS). We present transit photometry, reconnaissance, and precise Doppler spectroscopy, as well as high-resolution imaging, to validate the planetary nature of the objects transiting HD 108236, also known as the TESS Object of Interest (TOI) 1233. The innermost planet is a possibly rocky super-Earth with a period of 3.79523+0.00047-0.00044 days and has a radius of 1.586 ± 0.098 R⊗.The outer planets are sub-Neptunes, with potential gaseous envelopes, having radii of 2.068+0.10-0.091 R⊗, 2.72 ± 0.11 R⊗, and 3.12+0.13-0.12 R⊗ and periods of 6.20370+0.00064-0.000...
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