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YETI observations of the young transiting planet candidate CVSO 30 b

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    0470032 - ASÚ 2017 RIV GB eng J - Článek v odborném periodiku
    Raetz, S. - Schmidt, T.O.B. - Czesla, S. - Klocova, T. - Holmes, L. - Errmann, R. - Kitze, M. - Fernández, M. - Sota, A. - Briceno, C. - Hernandez, J. - Downes, J.J. - Dimitrov, D.P. - Kjurkchieva, D. - Radeva, V. - Wu, Z.-Y. - Zhou, X. - Takahashi, H. - Henych, Tomáš - Seeliger, M. - Mugrauer, M. - Adam, Ch. - Marka, C. - Schmidt, J.G. - Hohle, M.M. - Ginski, Ch. - Pribulla, T. - Trepl, L. - Moualla, M. - Pawellek, N. - Gelszinnis, J. - Buder, S. - Masda, S. - Maciejewski, G. - Neuhauser, R.
    YETI observations of the young transiting planet candidate CVSO 30 b.
    Monthly Notices of the Royal Astronomical Society. Roč. 460, č. 3 (2016), s. 2834-2852. ISSN 0035-8711. E-ISSN 1365-2966
    Grant CEP: GA MŠMT LG14013
    Institucionální podpora: RVO:67985815
    Klíčová slova: individual starws * planetary systems * pre-main-sequence
    Kód oboru RIV: BN - Astronomie a nebeská mechanika, astrofyzika
    Impakt faktor: 4.961, rok: 2016

    CVSO 30 is a unique young low-mass system, because, for the first time, a close-in transiting and a wide directly imaged planet candidates are found around a common host star. The inner companion, CVSO 30 b, is the first possible young transiting planet orbiting a previously known weak-lined T Tauri star. With five telescopes of the 'Young Exoplanet Transit Initiative' located in Asia, Europe and South America, we monitored CVSO 30 over three years in a total of 144 nights and detected 33 fading events. In two more seasons we carried out follow-up observations with three telescopes. We can confirm that there is a change in the shape of the fading event between different observations and that the fading event even disappears and reappears. A total of 38 fading event light curves were simultaneously modelled. We derived the planetary, stellar and geometrical properties of the system and found them slightly smaller but in agreement with the values from the discovery paper. The period of the fading event was found to be 1.36 s shorter and 100 times more precise than the previous published value. If CVSO 30 b would be a giant planet on a precessing orbit, which we cannot confirm, yet, the precession period may be shorter than previously thought. But if confirmed as a planet it would be the youngest transiting planet ever detected and will provide important constraints on planet formation and migration time-scales.
    Trvalý link: http://hdl.handle.net/11104/0267783

     
     
Počet záznamů: 1  

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