Now showing items 1-7 of 7

  • Characterization of small planets with Kepler and HARPS-N 

    Bonomo, A. S.; Sozzetti, A.; Lovis, C.; Malavolta, L.; Rice, K.; Dumusque, X.; Cameron, A. C.; Latham, D. W.; Molinari, E.; Pepe, F.; Udry, S. (EDP Sciences, 2015-09-23) - Conference item
    The high-accuracy and high-precision HARPS-N spectrograph has been installed at the italian Telescopio Nazionale Galileo in La Palma approximately two years and a half ago. Eighty nights per year of Guaranteed Time of ...
  • A coordinated optical and X-ray spectroscopic campaign on HD 179949 : searching for planet-induced chromospheric and coronal activity 

    Scandariato, G.; Maggio, A.; Lanza, A. F.; Pagano, I.; Fares, R.; Shkolnik, E. L.; Bohlender, D.; Cameron, A. C.; Dieters, S.; Donati, J.-F.; Martínez Fiorenzano, A. F.; Jardine, M.; Moutou, C. (2013-04) - Journal article
    Context. HD 179949 is an F8V star, orbited by a close-in giant planet with a period of ~3 days. Previous studies suggested that the planet enhances the magnetic activity of the parent star, producing a chromospheric hot ...
  • The hot Jupiter of the magnetically-active weak-line T Tauri star V830 Tau 

    Donati, J.-F.; Yu, L.; Moutou, C.; Cameron, A. C.; Malo, L.; Grankin, K.; Hébrard, E.; Hussain, G. A. J.; Vidotto, A. A.; Alencar, S. H. P.; Haywood, R. D.; Bouvier, J.; Petit, P.; Takami, M.; Herczeg, G. J.; Gregory, S. G.; Jardine, M. M.; Morin, J.; and the MaTYSSE collaboration (2016-11-10) - Journal article
    We report results of an extended spectropolarimetric and photometric monitoring of the weak-line T Tauri star V830 Tau and its recently-detected newborn close-in giant planet. Our observations, carried out within the MaTYSSE ...
  • K2-110 b: a massive mini-Neptune exoplanet 

    Osborn, H. P.; Santerne, A.; Barros, S. C. C.; Santos, N. C.; Dumusque, X.; Malavolta, L.; Armstrong, D. J.; Hojjatpanah, S.; Demangeon, O.; Adibekyan, V.; Almenara, J.-M.; Barrado, D.; Bayliss, D.; Boisse, I.; Bouchy, F.; Brown, D. J. A.; Cameron, A. C.; Charbonneau, D.; Deleuil, M.; Delgado Mena, E.; Díaz, R. F.; Hébrard, G.; Kirk, J.; King, G.W.; Lam, K. W. F.; Latham, D.; Lillo-Box, J.; Louden, T. M.; Lovis, C.; Marmier, M.; McCormac, J.; Molinari, E.; Pepe, F.; Pollacco, D.; Sousa, S. G.; Udry, S.; Walker, S. R. (2017-08) - Journal article
    We report the discovery of the exoplanet K2-110 b (previously EPIC212521166b) from K2 photometry orbiting in a 13.8637d period around an old, metal-poor K3 dwarf star. With a V-band magnitude of 11.9,K2-110 is particularly ...
  • Modelling the magnetic activity and filtering radial velocity curves of young Suns : the weak-line T Tauri star LkCa 4 

    Donati, J.-F.; Hébrard, E.; Hussain, G.; Moutou, C.; Grankin, K.; Boisse, I.; Morin, J.; Gregory, S. G.; Vidotto, A. A.; Bouvier, J.; Alencar, S. H. P.; Delfosse, X.; Doyon, R.; Takami, M.; Jardine, M. M.; Fares, R.; Cameron, A. C.; Ménard, F.; Dougados, C.; Herczeg, G. (2014-11-11) - Journal article
    We report results of a spectropolarimetric and photometric monitoring of the weak-line T Tauri star LkCa 4 within the Magnetic Topologies of Young Stars and the Survival of close-in giant Exoplanets (MaTYSSE) programme, ...
  • A small survey of the magnetic fields of planet-host stars 

    Fares, R.; Moutou, C.; Donati, J.-F.; Catala, C.; Shkolnik, E. L.; Jardine, M. M.; Cameron, A. C.; Deleuil, M. (2013-10-21) - Journal article
    Using spectropolarimetry, we investigate the large-scale magnetic topologies of stars hosting close-in exoplanets. A small survey of 10 stars has been done with the twin instruments Télescope Bernard Lyot /NARVAL and ...
  • Spin-orbit angles, and the aligned-misaligned transition 

    Brown, D. J. A.; Triaud, A. H. M. J.; Cameron, A. C. (2013-09-01) - Conference poster
    The number of planetary systems with measured or inferred spin-orbit alignment angles is rapidly approaching 100. With increased sample size comes increased importance of ‘unusual’ systems: either very hot or very cold ...