Browsing by Author "Chauvin, Gael"

Now showing items 1-8 of 8

    • A multiwavelength analysis of the spiral arms in the protoplanetary disk around WaOph 6 
      Brown Sevilla, S. B.; Keppler, M.; Barraza Alfaro, M.; Fuksman, J. D. Melon; Kurtovic, N.; Pinilla, P.; Feldt, M.; Brandner, W.; Ginski, C.; Henning, Th; Klahr, H.; Asensio Torres, R.; Cantalloube, F.; Garufi, A.; van Holstein, R. G.; Langlois, M.; Menard, F.; Rickman, E.; Benisty, Myriam; Chauvin, Gael; Zurlo, A.; Weber, P.; Pavlov, A.; Ramos, J.; Rochat, S.; Roelfsema, R. (EDP Sciences, 2021)
      Context. In recent years, protoplanetary disks with spiral structures have been detected in scattered light, millimeter continuum, and CO gas emission. The mechanisms causing these structures are still under debate. A ...
    • 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. ...
    • A SOPHIE RV search for giant planets around young nearby stars (YNS) A combination with the HARPS YNS survey 
      Grandjean, A.; Lagrange, A.M.; Meunier, N.; Rubini, P.; Desidera, S.; Galland, F.; Borgnie, S.; Zicher, N.; Messina, S.; Chauvin, Gael; Sterzik, M.; Pantoja, B. (EDP Sciences, 2021)
      Context. The search of close (a less than or similar to 5 au) giant planet (GP) companions with radial velocity (RV) around young stars and the estimate of their occurrence rates is important to constrain the migration ...
    • A wide-orbit giant planet in the high-mass b Centauri binary system 
      Janson, Markus; Gratton, Raffaele; Rodet, Laetitia; Vigan, Arthur; Bonnefoy, Mickael; Delorme, Philippe; Mamajek, Eric E.; Reffert, Sabine; Stock, Lukas; Marleau, Gabriel Dominique; Langlois, Maud; Chauvin, Gael; Desidera, Silvano; Ringqvist, Simon; Mayer, Lucio; Viswanath, Gayathri; Squicciarini, Vito; Meyer, Michael R.; Samland, Matthias; Petrus, Simon; Helled, Ravit; Kenworthy, Matthew A.; Quanz, Sascha P.; Biller, Beth; Henning, Thomas; Mesa, Dino; Engler, Natalia; Carson, Joseph C. (Nature, 2021)
      Planet formation occurs around a wide range of stellar masses and stellar system architectures(1). An improved understanding of the formation process can be achieved by studying it across the full parameter space, particularly ...
    • Lessons learned from SPHERE for the astrometric strategy of the next generation of exoplanet imaging instruments 
      Maire, Anne-Lise; Langlois, Maud; Delorme, Philippe; Chauvin, Gael; Gratton, Raffaele; Vigan, Arthur; Girard, Julien H.; Wahhaj, Zahed; Pott, Jorg-Uwe; Burtscher, Leonard; Boccaletti, Anthony; Carlotti, Alexis; Henning, Thomas; Kenworthy, Matthew A.; Kervella, Pierre; Rickman, Emily L.; Schmidt, Tobias O. B. (Spie-Soc Photo-Optical Instrumentation Engineers, 2021)
      Measuring the orbits of directly imaged exoplanets requires precise astrometry at the milliarcsec level over long periods of time due to their wide separation to the stars (greater than or similar to 10 au) and long orbital ...
    • 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 ...
    • 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 ...
    • Probing the innermost region of the AU microscopii debris disc 
      Gallenne, Alexandre; Desgrange, C.; Milli, J.; Sánchez Bermúdez, J.; Chauvin, Gael; Kraus, S.; Girard, J. H.; Boccaletti, A. (EDP Sciences, 2022)
      Context. AU Mic is a young and nearby M-dwarf star harbouring a circumstellar debris disc and one recently discovered planet on an eight-day orbit. Large-scale structures within the disc were also discovered and are moving ...