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|a Nielsen, L. D.
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|a Massachusetts Institute of Technology. Department of Physics
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|a MIT Kavli Institute for Astrophysics and Space Research
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|a Bouchy, F.
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|a Turner, O.
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|a Giles, H.
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|a Mascareño, A. Suárez
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|a Lovis, C.
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|a Marmier, M.
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|a Pepe, F.
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|a Ségransan, D.
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|a Udry, S.
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|a Otegi, J. F.
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|a Ottoni, G.
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|a Stalport, M.
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|a Ricker, George R
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|a Vanderspek, Roland K
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|a Latham, D. W.
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|a Seager, Sara
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|a Winn, J. N.
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|a Jenkins, J. M.
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|a Kane, S. R.
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|a Wittenmyer, R. A.
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|a Bowler, B.
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|a Crossfield, Ian Jm
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|a Horner, J.
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|a Kielkopf, J.
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|a Morton, T.
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|a Plavchan, P.
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|a Tinney, C. G.
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|a Zhang, Hui
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|a Wright, D. J.
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|a Mengel, M. W.
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|a Clark, J. T.
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|a Okumura, J.
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|a Addison, B.
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|a Caldwell, D. A.
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|a Cartwright, S. M.
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|a Collins, K. A.
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|a Francis, James E
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|a Guerrero, Natalia M.
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|a Huang, Chengxi
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|a Matthews, Elisabeth C
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|a Pepper, J.
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|a Rose, M.
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|a Villasenor, Jesus Noel Samonte
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|a Wohler, B.
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|a Stassun, K.
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|a Howell, S.
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|a Ciardi, D.
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|a Gonzales, E.
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|a Matson, R.
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|a Beichman, C.
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|a Schlieder, J.
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|a A Jovian planet in an eccentric 11.5 day orbit around HD 1397 discovered by TESS
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|b EDP Sciences,
|c 2019-06-18T19:04:49Z.
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|z Get fulltext
|u https://hdl.handle.net/1721.1/121348
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|a The Transiting Exoplanet Survey Satellite TESS has begun a new age of exoplanet discoveries around bright host stars. We present the discovery of HD 1397b (TOI-120.01), a giant planet in an 11.54-day eccentric orbit around a bright (V = 7.9) G-type subgiant. We estimate both host star and planetary parameters consistently using EXOFASTv2 based on TESS time-series photometry of transits and radial velocity measurements with CORALIE and MINERVA-Australis. We also present high angular resolution imaging with NaCo to rule out any nearby eclipsing binaries. We find that HD 1397b is a Jovian planet, with a mass of 0.415 ± 0.020 MJ and a radius of 1.026 ± 0.026 RJ. Characterising giant planets in short-period eccentric orbits, such as HD 1397b, is important for understanding and testing theories for the formation and migration of giant planets as well as planet-star interactions.
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|a en
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|a Space and Planetary Science
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|a Astronomy and Astrophysics
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|a Article
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|t Astronomy & Astrophysics
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