Browsing by Author "Petit, P."

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    • Analysis of combined radial velocities and activity of BD+20 1790: evidence supporting the existence of a ... 
      Hernán Obispo, M.; Tuomi, M.; Gálvez Ortiz, M. C.; Golovin, A.; Barnes, J. R.; Jones, H. R. A.; Kane, S. R.; Pinfield, D.; Jenkins, James Stewart; Petit, P.; Anglada Escudé, Guillem; Marsden, S. C.; Catalán, S.; Jeffers, S. V.; Castro, E. de; Cornide, M.; Garcés, A.; Jones, M. I.; Gorlova, N.; Andreev, M. (EDP Sciences, 2015)
      Context. In a previous paper we reported a planetary companion to the young and very active K5Ve star BD+20 1790. We found that this star has a high level of stellar activity (log R HK = −3.7) that manifests in a plethora ...
    • Magnetic activity and hot Jupiters of young Suns: the weak-line T Tauri stars V819 Tau and V830 Tau 
      Donati, J. F.; Hébrard, E.; Hussain, G. A. J.; Moutou, C.; Malo, L.; Grankin, K.; Vidotto, A. A.; Alencar, S. H. P.; Gregory, S. G.; Jardine, M. M.; Herczeg, G.; Morin, J.; Fares, R.; Ménard, Francois; Bouvier, J.; Delfosse, X.; Doyon, R.; Takami, M.; Figueira, P.; Petit, P.; Boisse, I. (Oxford University Press, 2015)
      We report results of a spectropolarimetric and photometric monitoring of the weak-line T Tauri stars (wTTSs) V819 Tau and V830 Tau within the MaTYSSE (Magnetic Topologies of Young Stars and the Survival of close-in giant ...