Browsing by Author "81f932d7-f52a-4ca6-819c-9874b8f28626"

Now showing items 1-8 of 8

    • A tale of two transition disks: alma long-baseline observations of iso-oph 2 reveal two closely packed ... 
      González Ruilova, Camilo; Cieza, Lucas A.; Hales, Antonio S.; Pérez, Sebastián; Zurlo, A.; Arce Tord, Carla; Casassus Montero, Simón; Canovas, Héctor; Flock, Mario; Herczeg, Gregory J.; Pinilla, Paola; Price, Daniel J.; Príncipe, David A.; Ruiz Rodríguez, Dary; Williams, Jonathan P. (IOP Publishing, 2020)
      ISO-Oph 2 is a wide-separation (240 au) binary system where the primary star harbors a massive (M-dust similar to 40M(circle plus)) ring-like disk with a dust cavity similar to 50 au in radius and the secondary hosts a ...
    • An inner warp in the DoAr 44 T Tauri transition disc 
      Casassus Montero, Simón; Avenhaus, Henning; Pérez, Sebastián; Navarro, Víctor; Cárcamo, Miguel; Marino, Sebastián; Cieza, Luca; Quanz, Sascha P.; Alarcón, Felipe; Zurlo, Alice; Osses Alvarado, Axel; Rannou, Fernando R.; Román, Pablo E.; Barraza, Marcelo (Oxford University Press, 2018-07)
      Optical/IR images of transition discs (TDs) have revealed deep intensity decrements in the rings of HAeBes HD 142527 and HD 100453 that can be interpreted as shadowing from sharply tilted inner discs, such that the outer ...
    • Erratum: Cooling in the shade of warped transition disks 
      Casassus Montero, Simón; Pérez, Sebastián; Osses Alvarado, Axel; Marino, Sebastián (Oxford University Press, 2020)
      This is an Erratum to the paper ‘Cooling in the shade of warped transition disks’ that was published in MNRAS, 486, L58-L62 (2019). The x-axis of Fig. 1 in the original version of the paper is incorrectly labeled, the ...
    • Imaging the water snow-line during a protostellar outburst 
      Cieza González, Lucas; Casassus Montero, Simón; Tobin, John; Bos, Steven; Williams, Jonathan; Pérez, Sebastián; Zhu, Zhaohuan; Canovas, Héctor; Dunham, Michael; Hales, Antonio; Prieto, José; Principe, David; Schreiber, Matthias; Ruiz Rodríguez, Dary; Zurlo, Alice (Nature Publishing Group, 2016)
      A snow-line is the region of a protoplanetary disk at which a major volatile, such as water or carbon monoxide, reaches its condensation temperature. Snow-lines play a crucial role in disk evolution by promoting the rapid ...
    • Observability of planet-disc interactions in CO kinematics 
      Pérez, Sebastián; Casassus Montero, Simón; Benítez-Llambay, P. (Oxford University Press, 2018)
      Empirical evidence of planets in gas-rich circumstellar discs is required to constrain giant planet formation theories. Here we study the kinematic patterns which arise from planet- disc interactions and their observability ...
    • Spiral waves triggered by shadows in transition disks 
      Montesinos, Matías; Pérez, Sebastián; Casassus Montero, Simón; Marino, Sebastián; Cuadra, Jorge; Christiaens, Valentín (IOP Publishing, 2016)
      Circumstellar asymmetries such as central warps have recently been shown to cast shadows on outer disks. We investigate the hydrodynamical consequences of such variable illumination on the outer regions of a transition ...
    • The ALMA early science view of FUor/EXor objects - V. Continuum disc masses and sizes 
      Cieza, Lucas A.; Ruiz Rodriguez, Dary; Pérez, Sebastián; Casassus Montero, Simón; Williams, Jonathan P.; Zurlo, Alice; Principe, David A.; Hales, Antonio; Prieto, Jose L.; Tobin, John J.; Zhu, Zhaohuan; Marino, Sebastián (Oxford University Press, 2018)
      Low-mass stars build a significant fraction of their total mass during short outbursts of enhanced accretion known as FUor and EXor outbursts. FUor objects are characterized by a sudden brightening of similar to 5 mag at ...
    • The Ophiuchus DIsc Survey Employing ALMA (ODISEA) – II. The effect of stellar multiplicity on disc properties 
      Zurlo, Alice; Cieza, Lucas A.; Pérez, Sebastián; Christiaens, Valentín; Williams, Jonathan P.; Guidi, Greta; Cánovas, Héctor; Casassus Montero, Simón; Hales Gebrim, Antonio; Principe, David A.; Ruíz Rodríguez, Dary; Fernández Figueroa, Antonia (Oxford University Press, 2020)
      We present adaptive optics (AO) near-infrared (NIR) observations using VLT/NACO and Keck/NIRC2 of Ophiuchus DIsc Survey Employing ALMA (ODISEA) targets. ODISEA is an ALMA survey of the entire population of circumstellar ...