Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Doppler confirmation of TESS planet candidate TOI1408.01: grazing transit and likely eccentric orbit. / Galazutdinov, G.A.; Baluev, R.V.; Valyavin, G.; Aitov, V.; Gadelshin, D.; Valeev, A.; Sendzikas, E.; Sokov, E.; Mitiani, G.; Burlakova, T.; Yakunin, I.; Antonyuk, K. A.; Vlasyuk, V.; Romanyuk, I.; Rzaev, A.; Yushkin, M.; Ivanova, A.; Tavrov, A.; Korablev, O.
в: Monthly Notices of the Royal Astronomical Society: Letters, Том 526, № 1, 18.09.2023, стр. L111-L115.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Doppler confirmation of TESS planet candidate TOI1408.01: grazing transit and likely eccentric orbit
AU - Galazutdinov, G.A.
AU - Baluev, R.V.
AU - Valyavin, G.
AU - Aitov, V.
AU - Gadelshin, D.
AU - Valeev, A.
AU - Sendzikas, E.
AU - Sokov, E.
AU - Mitiani, G.
AU - Burlakova, T.
AU - Yakunin, I.
AU - Antonyuk, K. A.
AU - Vlasyuk, V.
AU - Romanyuk, I.
AU - Rzaev, A.
AU - Yushkin, M.
AU - Ivanova, A.
AU - Tavrov, A.
AU - Korablev, O.
PY - 2023/9/18
Y1 - 2023/9/18
N2 - We report an independent Doppler confirmation of the TESS planet candidate orbiting an F-type main-sequence star TOI−1408 located 140 pc away. We present a set of radial velocities obtained with a high-resolution fibre-optic spectrograph FFOREST mounted at the SAO RAS 6-m telescope (BTA-6). Our self-consistent analysis of these Doppler data and TESS photometry suggests a grazing transit such that the planet obscures its host star by only a portion of the visible disc. Because of this degeneracy, the radius of TOI−1408.01 appears ill-determined with lower limit about ∼1 RJup, significantly larger than in the current TESS solution. We also derive the planet mass of 1.69 ± 0.20 MJup and the orbital period ∼4.425 d, thus making this object a typical hot Jupiter, but with a significant orbital eccentricity of 0.259 ± 0.026. Our solution may suggest that the planet is likely to experience a high tidal eccentricity migration at the stage of intense orbital rounding, or may indicate possible presence of other unseen companions in the system, yet to be detected.
AB - We report an independent Doppler confirmation of the TESS planet candidate orbiting an F-type main-sequence star TOI−1408 located 140 pc away. We present a set of radial velocities obtained with a high-resolution fibre-optic spectrograph FFOREST mounted at the SAO RAS 6-m telescope (BTA-6). Our self-consistent analysis of these Doppler data and TESS photometry suggests a grazing transit such that the planet obscures its host star by only a portion of the visible disc. Because of this degeneracy, the radius of TOI−1408.01 appears ill-determined with lower limit about ∼1 RJup, significantly larger than in the current TESS solution. We also derive the planet mass of 1.69 ± 0.20 MJup and the orbital period ∼4.425 d, thus making this object a typical hot Jupiter, but with a significant orbital eccentricity of 0.259 ± 0.026. Our solution may suggest that the planet is likely to experience a high tidal eccentricity migration at the stage of intense orbital rounding, or may indicate possible presence of other unseen companions in the system, yet to be detected.
UR - https://www.mendeley.com/catalogue/6660ffbd-7a54-3428-abad-c9897349cdb4/
U2 - 10.1093/mnrasl/slad127
DO - 10.1093/mnrasl/slad127
M3 - Article
VL - 526
SP - L111-L115
JO - Monthly Notices of the Royal Astronomical Society
JF - Monthly Notices of the Royal Astronomical Society
SN - 0035-8711
IS - 1
ER -
ID: 108805773