Browsing by Author "Gratton, R."

Now showing items 1-7 of 7

    • A scaled-up planetary system around a supernova progenitor 
      Squicciarini, V.; Gratton, R.; Janson, M.; Mamajek, Eric E.; Chauvin, Gael; Delorme, P.; Langlois, M.; Vigan, A.; Ringqvist, S. C.; Meeus, G.; Reffert, S.; Kenworthy, M.; Meyer, M. R.; Bonnefoy, M.; Bonavita, M.; Mesa, M.; Samland, M.; Desidera, S.; D’Orazi, V.; Engler, N.; Alecian, E.; Miglio, A.; Henning, T.; Quanz, S. P.; Mayer, L.; Flasseur, O.; Marleau, G. D. (EDP Sciences, 2022)
      Context. Virtually all known exoplanets reside around stars with M < 2:3 M either due to the rapid evaporation of the protostellar disks or to selection effects impeding detections around more massive stellar hosts. Aims. ...
    • 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 ...
    • 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 ...
    • Medium-resolution spectrum of the exoplanet HIP 65426 b 
      Petrus, S.; Bonnefoy, Mickael; Chauvin, Gael; Charnay, B.; Marleau, G.D.; Gratton, R.; Lagrange, A.M.; Rameau, J.; Mordasini, C.; Nowak, M.; Delorme, P.; Boccaletti, A.; Carlotti, A.; Houllé, M.; Vigan, A.; Allard, F.; Desidera, S.; D’Orazi, V.; Hoeijmakers, H.J.; Wyttenbach, A.; Lavie, B. (EDP Sciences, 2021)
      Medium-resolution integral-field spectrographs (IFS) coupled with adaptive-optics such as Keck/OSIRIS, VLT/MUSE, or SINFONI are appearing as a new avenue for enhancing the detection and characterization capabilities of ...
    • 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 ...
    • Perturbers: SPHERE detection limits to planetary-mass companions in protoplanetary disks 
      Asensio Torres, R.; Henning, Th; Cantalloube, F.; Pinilla, P.; Mesa, D.; Garufi, A.; Jorquera, S.; Gratton, R.; Chauvin, Gael; Szulagyi, J.; van Boekel, R.; Dong, R.; Marleau, G-D; Benisty, Myriam; Villenave, M.; Bergez Casalou, C.; Desgrange, C.; Janson, M.; Keppler, M.; Langlois, M.; Menard, F.; Rickman, E.; Stolker, T.; Feldt, M.; Fusco, T.; Gluck, L.; Pavlov, A.; Ramos, J. (EDP Sciences, 2021)
      The detection of a wide range of substructures such as rings, cavities, and spirals has become a common outcome of high spatial resolution imaging of protoplanetary disks, both in the near-infrared scattered light and in ...
    • 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 ...