Browsing by Subject "Circumstellar matter"

Now showing items 41-50 of 50

    • The GRAVITY young stellar object survey VII. The inner dusty disks of T Tauri stars 
      Perraut, K.; Labadie, L.; Bouvier, J.; Menard, F.; Klarmann, L.; Dougados, C.; Benisty, Myriam; Berger, J-P; Bouarour, Y- I; Brandner, W.; Garatti, A. Caratti o; Caselli, P.; Zeeuw, P. T. de; García López, R.; Henning, T.; Sánchez Bermúdez, J.; Sousa, A.; Van Dishoeck, E.; Alecian, E.; Amorim, A.; Clenet, Y.; Davies, R.; Drescher, A.; Duvert, G.; Eckart, A.; Eisenhauer, F.; Foerster Schreiber, N. M.; García, P.; Gendron, E.; Genzel, R.; Gillessen, S.; Grellmann, R.; Heissel, G.; Hippler, S.; Horrobin, M.; Hubert, Z.; Jocou, L.; Kervella, P.; Lacour, S.; Lapeyrere, V.; Le Bouquin, J-B; Lena, P.; Lutz, D.; Ott, T.; Paumard, T.; Perrin, G.; Scheithauer, S.; Shangguan, J.; Shimizu, T.; Stadler, J.; Straub, O.; Straubmeier, C.; Sturm, E.; Tacconi, L.; Vincent, F.; Von Fellenberg, S.; Widmann, F. (EDP Sciences, 2021)
      Context. T Tauri stars are surrounded by dust and gas disks. As material reservoirs from which matter is accreted onto the central star and planets are built, these protoplanetary disks play a central role in star and ...
    • The GRAVITY young stellar object survey: III. The dusty disk of RY Lup 
      Bouarour, Y. -I.; Perraut, K.; Ménard, F.; Brandner, W.; Caratti o Garatti, A.; Caselli, P.; Van Dishoeck, E.; Dougados, C.; García López, R.; Grellmann, R.; Henning, T.; Klarmann, L.; Labadie, L.; Natta, A.; Sánchez Bermúdez, J.; Thi, W. -F.; De Zeeuw, P. T.; Amorim, A.; Baubock, M.; Benisty, M.; Berger, J. -P.; Clenet, Y.; Du Foresto, V. Coudé; Duvert, G.; Eckart, A.; Eisenhauer, F.; Eupen, F.; Filho, M.; Gao, F.; García, P.; Gendron, E.; Genzel, R.; Gillessen, S.; Jiménez Rosales, A.; Jocou, L.; Hippler, S.; Horrobin, M.; Hubert, Z.; Kervella, P.; Lacour, S.; Le Bouquin, J. -B.; Léna, P.; Ott, T.; Paumard, T.; Perrin, G.; Pfuhl, O.; Rousset, G.; Scheithauer, S.; Shangguan, J.; Stadler, J.; Straub, O.; Straubmeier, C.; Sturm, E.; Vincent, F. H.; Von Fellenberg, S. D.; Widmann, F.; Wiest, M. (EDP Sciences, 2020)
      Context. Studies of the dust distribution, composition, and evolution of protoplanetary disks provide clues for understanding planet formation. However, little is known about the innermost regions of disks where telluric ...
    • The IRAS 08589-4714 star-forming region 
      Saldaño, H. P.; Vásquez, J.; Gómez, M.; Cappa, C. E.; Duronea, N.; Rubio López, Mónica (Universidad Nacional Autonóma de México, 2017)
      We present an analysis of the IRAS 08589-4714 star-forming region. This region harbors candidate young stellar objects identified in the WISE and Herschel images using color index criteria and spectral energy distributions ...
    • The Ophiuchus DIsc Survey Employing ALMA (ODISEA) - I: Project description and continuum images at 28 au resolution 
      Cieza, Lucas A.; Ruíz-Rodríguez, Dary; Hales, Antonio; Casassus Montero, Simón; Pérez, Sebastian; Gonzalez-Ruilova, Camilo; Cánovas, Hector; Williams, Jonathan P.; Zurlo, Alice; Ansdell, Megan; Avenhaus, Henning; Bayo, Amelia; Bertrang, Gesa H.M.; Christiaens, Valentin; Dent, (Oxford University Press, 2019)
      © 2018 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society. We introduce the Ophiuchus DIsc Survey Employing ALMA (ODISEA), a project aiming to study the entire population of ...
    • 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 ...
    • Type IIb Supernova 2013df Entering Into An Interaction Phase: A Link Between The Progenitor And The Mass Loss 
      Maeda, Keiichi; Hattori, T.; Milisavljevic, Dan; Folatelli, Gastón; Drout, M. R.; Kuncarayakti, Hanindyo; Margutti, Raffaella; Kamble, Atish; Soderberg, Alicia; Tanaka, M.; Kawabata, M.; Kawabata, K. S.; Yamanaka, M.; Nomoto, K.; Kim, J. H.; Simon, J. D.; Phillips, M. M.; Parrent, J.; Nakaoka, T.; Moriya, T. J.; Suzuki, A.; Takaki, K.; Ishigaki, M.; Sakon, I.; Tajitsu, A.; Iye, M. (IOP Publishing, 2015)
      We report the late-time evolution of Type IIb supernova (SN IIb) 2013df. SN 2013df showed a dramatic change in its spectral features at similar to 1 yr after the explosion. Early on it showed typical characteristics shared ...
    • Variability in the CO ro-vibrational lines from HD163296 
      Hein Bertelsen, Rosina P.; Kamp, I.; Van der Plas, Gerrit; Van den Ancker, M. E.; Waters, L. B. F. M.; Thi, W.-F.; Woitke, P. (Oxford Univ Press, 2016)
      We present for the first time a direct comparison of multi-epoch (2001-2002 and 2012) CO ro-vibrational emission lines from HD 163296. We find that both the line shapes and the FWHM (full width at half-maximum) differ ...
    • VEGA/CHARA interferometric observations of Cepheids I. A resolved structure around the prototype classical ... 
      Nardetto, N.; Mérand, A.; Mourard, D.; Storm, J.; Gieren, W.; Fouqué, P.; Graczyk, D.; Kervella, P.; Neilson, H.; Pietrzynski, G.; Pilecki, B.; Breitfelder, J.; Berio, P.; Challouf, M.; Clausse, J.-M.; Ligi, R.; Mathias, P.; Meilland, A.; Perraut, K.; Poretti, E.; Rainer, M.; Spang, A.; Stee, P.; Tallon-Bosc, I.; Brummelaar, T. ten (EDP Sciences, 2016)
      Context. The B-W method is used to determine the distance of Cepheids and consists in combining the angular size variations of the star, as derived from infrared surface-brightness relations or interferometry, with its ...
    • VLTI/PIONIER images the Achernar disk swell 
      Vedova, G. Dalla; Millour, F.; Souza, A. Domiciano de; Petrov, R. G.; Faes, D. Moser; Carciofi, A. C.; Kervella, Pierre; Rivinius, T. (EDP Sciences, 2017-05)
      Context. The mechanism of disk formation around fast-rotating Be stars is not well understood. In particular, it is not clear which mechanisms operate, in addition to fast rotation, to produce the observed variable ejection ...
    • A Young White Dwarf with an Infrared Excess 
      Xu, S.; Jura, M.; Pantoja, B.; Klein, B.; Zuckerman, B.; Su, K. Y. L.; Meng, H. Y. A. (IOP Publishing, 2015)
      Using observations of Spitzer/IRAC, we report the serendipitous discovery of excess infrared emission from a single white dwarf PG 0010+280. At a temperature of 27,220 K and a cooling age of 16 Myr, it is the hottest and ...