Now showing items 1-5 of 5

  • The accumulation and trapping of grains at planet gaps : effects of grain growth and fragmentation 

    Gonzalez, J.-F.; Laibe, G.; Maddison, S.T.; Pinte, C.; Ménard, F. (2015) - Journal article
    We model the dust evolution in protoplanetary disks with full 3D, Smoothed Particle Hydrodynamics (SPH), two-phase (gas+dust) hydrodynamical simulations. The gas+dust dynamics, where aerodynamic drag leads to the vertical ...
  • Correlations between the stellar, planetary, and debris components of exoplanet systems observed by Herschel 

    Marshall, J.P.; Moro-Martín, A.; Eiroa, C.; Kennedy, G.; Mora, A.; Sibthorpe, B.; Lestrade, J.-F.; Maldonado, J.; Sanz-Forcada, J.; Wyatt, M.C.; Matthews, B.; Horner, J.; Montesinos, B.; Bryden, G.; Del Burgo, C.; Greaves, J.S.; Ivison, R.J.; Meeus, G.; Olofsson, G.; Pilbratt, G.L.; White, G.J. (2014-05-01) - Journal article
    Context. Stars form surrounded by gas-and dust-rich protoplanetary discs. Generally, these discs dissipate over a few (3-10) Myr, leaving a faint tenuous debris disc composed of second-generation dust produced by the ...
  • Extreme conditions in a close analog to the young solar system : Herschel observations of ∈ Eridani 

    Greaves, Jane Sophia; Sibthorpe, B.; Acke, B.; Pantin, E. E.; Vandenbussche, B.; Olofsson, G.; Dominik, C.; Barlow, M. J.; Bendo, G. J.; Blommaert, J. A. D. L.; Brandeker, A.; de Vries, B. L.; Dent, W. R. F.; Di Francesco, J.; Fridlund, M.; Gear, W. K.; Harvey, P. M.; Hogerheijde, M. R.; Holland, W. S.; Ivison, R. J.; Liseau, R.; Matthews, B. C.; Pilbratt, G. L.; Walker, H. J.; Waelkens, C. (2014-08-10) - Journal article
    Far-infrared Herschel images of the Eridani system, seen at a fifth of the Sun's present age, resolve two belts of debris emission. Fits to the 160 μm PACS image yield radial spans for these belts of 12-16 and 54-68 AU. ...
  • An M-dwarf star in the transition disk of Herbig HD142527; Physical parameters and orbital elements 

    Lacour, S.; Biller, B.; Cheetham, A.; Greenbaum, A.; Pearce, T.; Marino, S.; Tuthill, P.; Pueyo, L.; Mamajek, E. E.; Girard, J. H.; Sivaramakrishnan, A.; Bonnefoy, M.; Baraffe, I.; Chauvin, G.; Olofsson, J.; Juhasz, A.; Benisty, M.; Pott, J.-U.; Sicilia-Aguilar, A.; Henning, T.; Cardwell, A.; Goodsell, S.; Graham, J. R.; Hibon, P.; Ingraham, P.; Konopacky, Q.; Macintosh, B.; Oppenheimer, R.; Perrin, M.; Rantakyrö, F.; Sadakuni, N.; Thomas, S. (2016-06) - Journal article
    HD 142527A is one of the most studied Herbig Ae/Be stars with a transitional disk, as it has the largest imaged gap in any protoplanetary disk: the gas is cleared from 30 to 90 AU. The HD 142527 system is also unique in ...
  • The well-aligned orbit of Wasp-84b : evidence for disk migration of a hot Jupiter 

    Anderson, D. R.; Triaud, A. H. M. J.; Turner, O. D.; Brown, D. J. A.; Clark, B. J. M.; Smalley, B.; Cameron, A. Collier; Doyle, A. P.; Gillon, M.; Hellier, C.; Lovis, C.; Maxted, P. F. L.; Pollacco, D.; Queloz, D.; Smith, A. M. S. (2015-02-10) - Journal article
    We report the sky-projected orbital obliquity (spin–orbit angle) of WASP-84 b, a 0.69 planet in an 8.52 day orbit around a G9V/K0V star, to be λ = −0.3 ± 1.7°. We obtain a true obliquity of ψ = 17.3 ± 7.7° from a measurement ...