TW Hydrae: evidence of stellar spots instead of a Hot Jupiter

@article{Hulamo2008TWHE,
  title={TW Hydrae: evidence of stellar spots instead of a Hot Jupiter},
  author={N. Hu{\'e}lamo and P. Figueira and X. Bonfils and N. Santos and F. Pepe and M. Guillon and R. Azevedo and T. Barman and M. Fernandez and E. D. Folco and E. Guenther and C. Lovis and C. Melo and D. Queloz and S. Udry},
  journal={Astronomy and Astrophysics},
  year={2008},
  volume={489}
}
  • N. Huélamo, P. Figueira, +12 authors S. Udry
  • Published 2008
  • Physics
  • Astronomy and Astrophysics
  • Context. TW Hya is a classical T Tauri star that shows significant radial-velocity variations in the optical regime. These variations have been attributed to a 10 MJup planet orbiting the star at 0.04 AU. Aims. The aim of this letter is to confirm the presence of the giant planet around TW Hya by (i) testing whether the observed RV variations can be caused by stellar spots and (ii) analyzing new optical and infrared data to detect the signal of the planet companion. Methods. We fitted the RV… CONTINUE READING
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