Browsing by Author "f0098ebc-5807-4fd9-ab65-e1d34cc13de8"

Now showing items 1-11 of 11

    • An 80 au cavity in the disk around HD 34282 
      Van der Plas, Gerrit; Menard, F.; Canovas, H.; Avenhaus, H.; Casassus Montero, Simón; Pinte, Christophe; Cáceres, C.; Cieza, L. (EDP Sciences, 2017)
      Context. Large cavities in disks are important testing grounds for the mechanisms proposed to drive disk evolution and dispersion, such as dynamical clearing by planets and photoevaporation. Aims. We aim to resolve the ...
    • Cavity and other radial substructures in the disk around HD 97048 
      Van Der Plas, G.; Wright, C. M.; Ménard, F.; Casassus Montero, Simón; Cánovas, H.; Pinte, C.; Maddison, S. T.; Maaskant, K.; Avenhaus, H.; Cieza, L.; Pérez, S.; Ubach, C. (EDP Sciences, 2017)
      Context. Gaps, cavities, and rings in circumstellar disks are signposts of disk evolution and planet-disk interactions. We follow the recent suggestion that Herbig Ae/Be disks with a flared disk harbor a cavity, and ...
    • Discovery of a planetary-mass companion within the gap of the transition disk around PDS 70 
      Keppler, M.; Benisty, Myriam; Müller, A.; Henning, Th; Van Boekel, R.; Cantalloube, F.; Ginski, C.; Van Holstein, R.; Maire, A.; Pohl, A.; Samland, M.; Avenhaus, H.; Baudino, J.; Boccaletti, A.; De Boer, J.; Bonnefoy, M.; Chauvin, G.; Desidera, S.; Langlois, M.; Lazzoni, C.; Marleau, G.; Mordasini, C.; Pawellek, N.; Stolker, T.; Vigan, A.; Zurlo, A.; Birnstiel, T.; Brandner, W.; Feldt, M.; Flock, M.; Girard, J.; Gratton, R.; Hagelberg, J.; Isella, A.; Janson, M.; Juhasz, A.; Kemmer, J.; Kral, Q.; Lagrange, Anne Marie; Launhardt, R.; Matter, A.; Ménard, F.; Milli, J.; Mollière, P.; Olofsson, J.; Pérez, L.; Pinilla, P.; Pinte, C.; Quanz, S. P.; Schmidt, T.; Udry, S.; Wahhaj, Z.; Williams, J. P.; Buenzli, E.; Cudel, M.; Dominik, C.; Galicher, R.; Kasper, M.; Lannier, J.; Mesa, D.; Mouillet, D.; Peretti, S.; Perrot, C.; Salter, G.; Sissa, E.; Wildi, F.; Abe, L.; Antichi, J.; Augereau, J.; Baruffolo, A.; Baudoz, P.; Bazzon, A.; Beuzit, J.-L.; Blanchard, P.; Brems, S.; Buey, T.; De Caprio, V.; Carbillet, M.; Carle, M.; Cascone, E.; Cheetham, A.; Claudi, R.; Costille, A.; Delboulbé, A.; Dohlen, K.; Fantinel, D.; Feautrier, P.; Fusco, T.; Giro, E.; Gluck, L.; Gry, C.; Hubin, N.; Hugot, E.; Jaquet, M.; Le Mignant, D.; Llored, M.; Madec, F.; Magnard, Y.; Martínez, P.; Maurel, D.; Meyer, M.; Möller-Nilsson, O.; Moulin, T.; Mugnier, L.; Origné, A.; Pavlov, A.; Perret, D.; Petit, C.; Pragt, J.; Puget, P.; Rabou, P.; Ramos, J.; Rigal, F.; Rochat, S.; Roelfsema, R.; Rousset, G.; Roux, A.; Salasnich, B.; Sauvage, J.; Sevin, A.; Soenke, C.; Stadler, E.; Suarez, M.; Turatto, M.; Weber, L. (EDP Sciences, 2018)
      Context. Young circumstellar disks are the birthplaces of planets. Their study is of prime interest to understand the physical and chemical conditions under which planet formation takes place. Only very few detections of ...
    • Disks around T Tauri stars with sphere (DARTTS-S) II. Twenty- one new polarimetric images of young stellar disks 
      Garufi, A.; Avenhaus, H.; Pérez, S.; Quanz, S. P.; van Holstein, R. G.; Bertrang, G. H-M; Casassus Montero, Simón; Cieza, L.; Principe, D. A.; van der Plas, G.; Zurlo, A. (EDP Sciences, 2020)
      Context. Near-IR polarimetric images of protoplanetary disks enable us to characterize substructures that might be due to the interaction with (forming) planets. The available census is strongly biased toward massive disks ...
    • Exploring dust around HD 142527 down to 0.025 (4au) using SPHERE/ZIMPOL 
      Avenhaus, H.; Quanz, S. P.; Schmid, H. M.; Dominik, C.; Stolker, T.; Ginski, C.; de Boer, J.; Szulagyi, J.; Garufi, A.; Zurlo, A.; Hagelberg, J.; Benisty, Myriam; Henning, Thomas; Menard, F.; Meyer, M. R. (IOP Publishing Ltd., 2017)
      We have observed the protoplanetary disk of the well-known young Herbig star HD 142527 using ZIMPOL polarimetric differential imaging with the very broad band (similar to 600-900 nm) filter. We obtained two data sets in ...
    • HD 169142 in the eyes of ZIMPOL/SPHERE 
      Bertrang, G. H. M.; Avenhaus, H.; Casassus Montero, Simón; Montesinos, M.; Kirchschlager, F.; Pérez, S.; Cieza, L.; Wolf, S. (Oxford University Press, 2018)
      We present new data of the protoplanetary disc surrounding the Herbig Ae/Be star HD 169142 obtained in the very broad-band (VBB) with the Zurich imaging polarimeter (ZIMPOL), a sub-system of the Spectro-Polarimetric ...
    • RefPlanets: Search for reflected light from extrasolar planets with SPHERE/ZIMPOL 
      Hunziker, S.; Schmid, H. M.; Mouillet, D.; Milli, J.; Zurlo, Alice; Abe, L.; Avenhaus, H.; Baruffolo, A.; Bazzon, A.; Boccaletti, A.; Baudoz, P.; Beuzit, J. L.; Carbillet, M.; Chauvin, G.; Dohlen, K.; Chauvin, G.; Claudi, R.; Costille, A.; Daban, J.-B.; Desidera, S.; Dohlen, K.; Dominik, C.; Downing, M.; Engler, N.; Feldt, M.; Fusco, T.; Ginski, C.; Gisler, D.; Girard, J. H.; Gratton, R.; Henning, Th.; Hubin, N.; Kasper, M.; Keller, C. U.; Langlois, M.; Lagadec, E.; Martínez, P.; Maire, A.-L.; Menard, F.; Meyer, M. R.; Pavlov, A.; Pragt, J.; Puget, P.; Quanz, S. P.; Rickman, E.; Roelfsema, R.; Salasnich, B.; Sauvage, J.-F.; Siebenmorgen, R.; Sissa, E.; Snik, F.; Suárez, M.; Szulágyi, J.; Thalmann, Ch.; Turatto, M.; Udry, S.; Van Holstein, R. G.; Vigan, A.; Wildi, F. (EDP ​​Sciences, 2020)
      Aims. RefPlanets is a guaranteed time observation programme that uses the Zurich IMaging POLarimeter (ZIMPOL) of Spectro-Polarimetric High-contrast Exoplanet REsearch instrument at the Very Large Telescope to perform a ...
    • Spectral and orbital characterisation of the directly imaged giant planet HIP 65426 b 
      Cheetham, A. C.; Samland, M.; Brems, S. S.; Launhardt, R.; Chauvin, G.; Ségransan, D.; Henning, T.; Quirrenbach, A.; Avenhaus, H.; Cugno, G.; Girard, J.; Godoy, N.; Kennedy, G. M.; Maire, A. L.; Metchev, S.; Müller, A.; Musso Barcucci, A.; Olofsson, J.; Pepe, F.; Quanz, S. (EDP Sciences, 2019)
      HIP 65426 b is a recently discovered exoplanet imaged during the course of the SPHERE-SHINE survey. Here we present new L′ and M′ observations of the planet from the NACO instrument at the VLT from the NACO-ISPY survey, ...
    • The SPHERE view of the planet-forming disk around HD 100546 
      Garufi, A.; Quanz, S. P.; Schmid, H. M.; Mulders, G. D.; Avenhaus, H.; Boccaletti, A.; Ginski, C.; Langlois, M.; Stolker, T.; Augereau, J.-C.; Benisty, Myriam; López, B.; Dominik, C.; Gratton, R.; Henning, Thomas; Janson, M.; Ménard, Francois; Meyer, M. R.; Pinte, Christophe; Sissa, E.; Vigan, A.; Zurlo, A.; Bazzon, A.; Buenzli, E.; Bonnefoy, M.; Brandner, W.; Chauvin, G.; Cheetham, A.; Cudel, M.; Desidera, S.; Feldt, M.; Galicher, R.; Kasper, M.; Lagrange, Anne Marie; Lannier, J.; Maire, Anne-Lise; Mesa, D.; Mouillet, D.; Peretti, S.; Perrot, C.; Salter, G.; Wildi, F. (ESO, 2016-04)
      Context. The mechanisms governing planet formation are not fully understood. A new era of high-resolution imaging of protoplanetary disks has recently started, thanks to new instruments such as SPHERE, GPI, and ALMA. The ...
    • Uncrowding R 136 from VLT/SPHERE extreme adaptive optics 
      Khorrami, Z.; Vakili, F. F.; Lanz, T.; Langlois, M.; Lagadec, E.; Meyer, M. R.; Robbe Dubois, S.; Abe, L.; Avenhaus, H.; Beuzit, J. L.; Ramos, J. (EDP Sciences, 2017)
      This paper presents the sharpest near-IR images of the massive cluster R136 to date, based on the extreme adaptive optics of the SPHERE focal instrument implemented on the ESO Very Large Telescope and operated in its IRDIS ...
    • Upper limits for mass and radius of objects around proxima cen from SPHERE/VLT 
      Mesa, D.; Zurlo, A.; Milli, J.; Gratton, R.; Avenhaus, H. (Oxford University Press, 2017)
      The recent discovery of an earth-like planet around Proxima Centauri has drawn much attention to this star and its environment. We performed a series of observations of Proxima Centauri using Spectro-Polarimetric High-contrast ...