Browsing by Author "Chauvin, G."

Now showing items 1-8 of 8

    • Asymmetric features in the protoplanetary disk MWC 758 
      Benisty, Myriam; Juhasz, A.; Boccaletti, A.; Avenhaus, H.; Milli, J.; Thalmann, C.; Dominik, C.; Pinilla, P.; Buenzli, E.; Pohl, A.; Beuzit, J.L.; Birnstiel, T.; Boer, J. de; Bonnefoy, M.; Chauvin, G.; Christiaens, V.; Garufi, A.; Grady, C.; Henning, Thomas; Huelamo, N.; Isella, A.; Langlois, M.; Ménard, Francois; Mouillet, D.; Olofsson, J.; Pantin, E.; Pinte, Christophe; Pueyo, L. (ESO, 2015)
      Context. The study of dynamical processes in protoplanetary disks is essential to understand planet formation. In this context, transition disks are prime targets because they are at an advanced stage of disk clearing and ...
    • In-depth direct imaging and spectroscopic characterization of the young Solar System analog HD 95086 
      Desgrange, C.; Chauvin, G.; Christiaens, Valentin; Cantalloube, Faustine; Lefranc, L. X.; Le Coroller, H.; Rubini, P.; Otten, G. P. P. L.; Beust, H.; Bonavita, M.; Delorme, P.; Devinat, M.; Gratton, R.; Lagrange, A. M.; Langlois, M.; Mesa, D.; Milli, J.; Szulágyi, J.; Nowak, M.; Rodet, L.; Rojo, P.; Petrus, S.; Janson, M.; Henning, T.; Kral, Q.; Van Holstein, R .G.; Ménard, Franois; Beuzit, J. L.; Biller, B.; Boccaletti, A.; Bonnefoy, M.; Brown, S.; Costille, A.; Delboulbe, A.; Desidera, S.; Orazi, V. D.; Feldt, M.; Fusco, T.; Galicher, R.; Hagelberg, J.; Lazzoni, C.; Ligi, R.; Maire, A. L.; Messina, S.; Meyer, M.; Potier, A.; Ramos, J.; Rouan, D.; Schmidt, T.; Vigan, A.; Zurlo, Alice (EDP Sciences, 2022)
      Context. HD95086 is a young nearby Solar System analog hosting a giant exoplanet orbiting at 57 au from the star between an inner and outer debris belt. The existence of additional planets has been suggested as the mechanism ...
    • A library of near-infrared integral field spectra of young M–L dwarfs 
      Bonnefoy, M.; Chauvin, G.; Lagrange, Anne Marie; Rojo Rubke, Patricio; Allard, F.; Pinte, Christophe; Dumas, C.; Homeier, D. (EDP Sciences, 2014)
      Context. At young ages, low surface gravity a ects the atmospheric properties of ultracool dwarfs. The impact on medium-resolution near-infrared (NIR) spectra has only been slightly investigated at the M–L transition so ...
    • Narrow belt of debris around the Sco-Cen star HD 141011 
      Bonnefoy, M.; Milli, J.; Menard, F.; Delorme, P.; Chomez, A.; Bonavita, M.; Lagrange, A-M; Vigan, A.; Augereau, J. C.; Beuzit, J. L.; Biller, B.; Boccaletti, A.; Chauvin, G.; Desidera, S.; Faramaz, V.; Galicher, R.; Gratton, R.; Hinkley, S.; Lazzoni, C.; Matthews, E.; Mesa, D.; Mordasini, C.; Mouillet, D.; Olofsson, J.; Pinte, C. (EDP Sciences, 2021)
      Context. We initiated a deep-imaging survey of Scorpius-Centaurus A-F stars in 2015. These stars are predicted to host warm inner and cold outer belts of debris reminiscent of the architecture of emblematic systems such ...
    • Near-infrared integral-field spectra of the planet/brown dwarf companion AB Pictoris b 
      Bonnefoy, M.; Chauvin, G.; Rojo, P.; Allard, F.; Lagrange, Anne Marie; Homeier, D.; Dumas, C.; Beuzit, J.-L. (EDP Sciences, 2010)
      Context. We have already imaged a co-moving companion at a projected separation of ∼260 AU from the young star AB Pic A. Evolutionary model predictions based on JHK photometry of AB Pic b suggest a mass of ∼13−14 MJup, ...
    • New constraints on the formation and settling of dust in the atmospheres of young M and L dwarfs 
      Manjacavas, E.; Bonnefoy, M.; Schlieder, J. E.; Allard, F.; Rojo Rubke, Patricio; Goldman, B.; Chauvin, G.; Homeier, D.; Lodieu, N.; Henning, Thomas (2014-04)
      Context. Gravity modifies the spectral features of young brown dwarfs (BDs). A proper characterization of these objects is crucial for the identification of the least massive and latest-type objects in star-forming regions, ...
    • Optical Imaging Polarimetry of the LkCa 15 protoplanetary Disk with Sphere Zimpol 
      Thalmann, C.; Mulders, G. D.; Janson, M.; Olofsson, J.; Benisty, Myriam; Avenhaus, H.; Quanz, S. P.; Schmid, H. M.; Henning, Thomas; Buenzli, E.; Ménard, Francois; Carson, J. C.; Garufi, A.; Messina, S.; Dominik, C.; Leisenring, J.; Chauvin, G.; Meyer, M. R. (IOP Publishing, 2015)
      We present the first optical (590-890 nm) imaging polarimetry observations of the pre-transitional protoplanetary disk around the young solar analog LkCa 15, addressing a number of open questions raised by previous studies. ...
    • The VLT/NaCo large program to probe the occurrence of exoplanets and brown dwarfs at wide orbits III. The ... 
      Reggiani, M.; Meyer, M.; Chauvin, G.; Vigan, A.; Quanz, S.; Biller, B.; Bonavita, M.; Desidera, S.; Delorme, P.; Hagelberg, J.; Maire, Anne-Lise; Boccaletti, A.; Beuzit, J.; Buenzli, E.; Carson, J.; Covino, E.; Feldt, M.; Girard, J.; Gratton, R.; Henning, Thomas; Kasper, M.; Lagrange, A.; Mesa, D.; Messina, S.; Montagnier, G.; Mordasini, C.; Mouillet, D.; Schlieder, J.; Segransan, D.; Thalmann, C.; Zurlo, A. (EDP SCIENCES, 2016)
      Context. In recent years there have been many attempts to characterize the occurrence and distribution of stellar, brown dwarf (BD), and planetary-mass companions to solar-type stars with the aim of constraining formation ...