Browsing by Subject "Techniques interferometric"

Now showing items 1-6 of 6

    • Accretion-ejection morphology of the microquasar SS 433 resolved at sub-au scale 
      Petrucci, P. O.; Waisberg, I.; Le Bouquin, J. B.; Kervella, P. (EDP Sciences, 2017)
      We present the first optical observation of the microquasar SS 433 at sub-milliarcsecond (mas) scale obtained with the GRAVITY instrument on the Very Large Telescope interferometer (VLTI). The 3.5-h exposure reveals a rich ...
    • Connecting the shadows: probing inner disk geometries using shadows in transitional disks 
      Min, M.; Stolker, T.; Dominik, C.; Benisty, Myriam (EDP Sciences, 2017)
      Aims. Shadows in transitional disks are generally interpreted as signs of a misaligned inner disk. This disk is usually beyond the reach of current day high contrast imaging facilities. However, the location and morphology ...
    • Radio emission in ultracool dwarfs: the nearby substellar triple system VHS 1256-1257 
      Guirado, J. C.; Azulay, R.; Gauza, B.; Pérez Torres, M. A.; Rebolo, R.; Climent, J. B.; Zapatero Osorio, M. R. (EDP Sciences, 2018)
      Aims. With the purpose of investigating the radio emission of new ultracool objects, we carried out a targeted search in the recently discovered system VHS J125601.92-125723.9 (hereafter VHS 1256-1257); this system is ...
    • Submilliarcsecond optical interferometry of the high-mass X-Ray binary BP Cru with VLTI/GRAVITY 
      Waisberg, I.; Dexter, J.; Pfuhl, O.; Kervella, P. (IOP Publishing Ltd, 2017)
      We observe the high-mass X-ray binary (HMXB) BP Cru using interferometry in the near-infrared K band with VLTI/GRAVITY. Continuum visibilities are at most partially resolved, consistent with the predicted size of the ...
    • The convective surface of the red supergiant Antares VLTI/PIONIER interferometry in the near infrared 
      Montarges, M.; Chiavassa, A.; Kervella, P.; Ridgway, S. T.; Perrin, G.; Le Bouquin, J. B.; Lacour, S. (EDP Sciences, 2017)
      Context. Convection is a candidate to explain the trigger of red supergiant star (RSG) mass loss. Owing to the small size of the convective cells on the photosphere, few of the characteristics of RSGs are known. Aims. ...
    • Variable Dynamics in the Inner Disk of HD 135344B Revealed with Multi-epoch Scattered Light Imaging 
      Stolker, Tomas; Sitko, Mike; Lazareff, Bernard; Benisty, Myriam; Dominik, Carsten; Waters, Rens; Min, Michiel; Pérez, Sebastian; Milli, Julien; Garufi, Antonio; de Boer, Jozua; Ginski, Christian; Kraus, Stefan; Berger, Jean-Philippe; Avenhaus, Henning (IOP Publishing Ltd, 2017)
      We present multi-epoch Very Large Telescope/Spectro-Polarimetric High-contrast Exoplanet REsearch (VLT/SPHERE) observations of the protoplanetary disk around HD. 135344B (SAO 206462). The J-band scattered light imagery ...