Browsing by Author "Lagrange, Anne Marie"

Now showing items 1-9 of 9

    • Blobs, spiral arms, and a possible planet around HD 169142 
      Gratton, R.; Ligi, R.; Sissa, E.; Desidera, S.; Mesa, D.; Bonnefoy, M.; Chauvin, G.; Cheetham, A.; Feldt, M.; Lagrange, Anne Marie; Langlois, M.; Meyer, M.; Vigan, A.; Boccaletti, A.; Janson, M.; Lazzoni, C.; Zurlo, A.; De Boer, J.; Henning, T.; D'Orazi, V.; Gluck, L.; Madec, F. (EDP Sciences, 2019)
      Context. Young planets are expected to cause cavities, spirals, and kinematic perturbations in protostellar disks that may be used to infer their presence. However, a clear detection of still-forming planets embedded within ...
    • 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 ...
    • Fast-moving features in the debris disk around AU Microscopii 
      Boccaletti, Anthony; Thalmann, Christian; Lagrange, Anne Marie; Janson, Markus; Augereau, Jean Charles; Schneider, Glenn; Milli, Julien; Grady, Carol; Debes, John; Langlois, Maud; Mouillet, David; Henning, Thomas; Dominik, Carsten; Maire, Anne-Lise; Beuzit, Jean-Luc; Carson, Joseph; Dohlen, Kjetil; Engler, Natalia; Feldt, Markus; Fusco, Thierry; Ginski, Christian; Girard, Julien H.; Hines, Dean; Kasper, Markus; Mawet, Dimitri; Ménard, Francois; Meyer, Michael R.; Moutou, Claire; Olofsson, Johan; Rodigas, Timothy; Sauvage, Jean Francois; Schlieder, Joshua; Martin Schmid, Hans; Turatto, Massimo; Udry, Stephane; Vakili, Farrokh; Vigan, Arthur; Wahhaj, Zahed; Wisniewski, John (Nature Publishing, 2015)
      In the 1980s, excess infrared emission was discovered around main-sequence stars; subsequent direct-imaging observations revealed orbiting disks of cold dust to be the source(1). These 'debris disks' were thought to be ...
    • 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 ...
    • Molecular Gas Clumps from the Destruction of Icy Bodies in the β Pictoris Debris Disk 
      Dent, William R. F.; Wyatt, M. C.; Roberge, A.; Augereau, J. C.; Casassus Montero, Simón; Corder, C.; Greaves, J. S.; De Gregorio Monsalvo, Itziar; Hales, A.; Jackson, A. P.; Meredith Hughes, A.; Lagrange, Anne Marie; Matthews, B.; Wilner, D. (2014-03-28)
      Many stars are surrounded by disks of dusty debris formed in the collisions of asteroids, comets, and dwarf planets, but is gas also released in such events? Observations at submillimeter wavelengths of the archetypal ...
    • 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 dust surrounding HR 4796A 
      Milli, J.; Mawet, D.; Pinte, Christophe; Lagrange, Anne Marie; Mouillet, D.; Girard, J. H.; Augereau, J. C.; Boer, J. de; Pueyo, L.; Choquet, É. (ESO, 2015)
      Context. HR 4796A is surrounded by a well-structured and very bright circumstellar disc shaped like an annulus with many interesting features: very sharp inner and outer edges, brightness asymmetries, centre offset, and ...
    • Post-conjunction detection of β Pictoris b with VLT/SPHERE 
      Lagrange, Anne Marie; Boccaletti, A.; Langlois, M.; Chauvin, G.; Gratton, R.; Beust, H.; Desidera, S.; Milli, J.; Bonnefoy, M.; Cheetham, A.; Feldt, M.; Meyer, M.; Vigan, A.; Biller, B.; Bonavita, M.; Baudino, J. L.; Cantalloube, F.; Cudel, M.; Daemgen, S.; Delorme, P.; D'Orazi, (EDP Sciences, 2019)
      Context. With an orbital distance comparable to that of Saturn in the solar system, β Pictoris b is the closest (semi-major axis ≃ 9 au) exoplanet that has been imaged to orbit a star. Thus it offers unique opportunities ...
    • VLT/SPHERE survey for exoplanets around young early-type stars, including systems with multi-belt architectures 
      Lombart, Maxime; Chauvin, Gael Epely; Rojo Rubke, Patricio; Lagadec, Eric; Delorme, Philippe; Beust, Herve; Bonnefoy, Mickael; Galicher, Raphael; Gratton, Raffaele; Mesa, Dino; Bonavita, Mariangela; Allard, France; Bayo, Alberto; Boccaletti, Anthony; Desidera, Silvano; Girard, Julien; Jenkins, James Stewart; Klahr, H.; Laibe, G.; Lagrange, Anne Marie; Lazzoni, C.; Marleau, Gabriel Dominique; Minniti, Dante; Mordasini, C. (EDP Science, 2020)
      Context. Dusty debris disks around pre- and main-sequence stars are potential signposts for the existence of planetesimals and exoplanets. Giant planet formation is therefore expected to play a key role in the evolution ...