Browsing by Author "Cieza, Lucas"

Now showing items 1-6 of 6

    • A dusty filament and turbulent CO spirals in HD 135344B-SAO 206462 
      Casassus, Simon; Christiaens, Valentin; Carcamo, Miguel; Pérez, Sebastián; Weber, Philipp; Ercolano, Barbara; van der Marel, Nienke; Pinte, Christophe; Dong, Ruobing; Baruteau, Clement; Cieza, Lucas; van Dishoeck, Ewine F.; Jordán, Andrés; Price, Daniel J.; Absil, Olivier; Arce Tord, Carla Alessandra; Faramaz, Virginie; Flores, Christian; Reggiani, Maddalena (Oxford, 2021)
      Planet-disc interactions build up local pressure maxima that may halt the radial drift of protoplanetary dust, and pile it up in rings and crescents. ALMA observations of the HD 135344B disc revealed two rings in the thermal ...
    • A compact concentration of large grains in the HD 142527 protoplanetary dust trap 
      Casassus Montero, Simón; Wright, Chris; Marino Estay, Sebastián; Maddison, Sarah T.; Wootten, Al; Román Asenjo, Pablo; Pérez, Sebastián; Pinilla, Paola; Wyatt, Mark; Moral, Víctor; Ménard, Francois; Christiaens, Valentín; Cieza, Lucas; Van der Plas, Gerrit (IOP Publishing, 2015)
      A pathway to the formation of planetesimals, and eventually giant planets, may occur in concentrations of dust grains trapped in pressure maxima. Dramatic crescent-shaped dust concentrations have been seen in recent radio ...
    • A Compact Concentration of Large Grains in the HD 142527 Protoplanetary Dust Trap 
      Casassus Montero, Simón; Wright, Chris; Marino, Sebastian; Maddison, Sarah; Wootten, Al; Roman, Pablo; Pérez, Sebastian; Pinilla, Paola; Wyatt, Mark; Moral, Victor; Ménard, Francois; Christiaens, Valentin; Cieza, Lucas; Van der Plas, Gerrit (The American Astronomical Society, 2015-10-20)
      A pathway to the formation of planetesimals, and eventually giant planets, may occur in concentrations of dust grains trapped in pressure maxima. Dramatic crescent-shaped dust concentrations have been seen in recent ...
    • Imaging of interactions between circumstellar disks and extrasolar planets 
      Christiaens, Valentín André (Universidad de Chile, 2018)
      Se necesitan observaciones para restringir los mecanismos involucrados en el proceso de formación de planetas. Los discos circunestelares ricos en gas y polvo, llamados discos protoplanetarios, son el lugar esperado de ...
    • Improving signal-to-noise in the direct imaging of exoplanets and circumstellar disks with MLOCI 
      Wahhaj, Zahed; Cieza, Lucas; Mawet, Dimitri; Yang, Bin; Canovas, Héctor; Boer, Jozua de; Casassus Montero, Simón; Ménard, Francois; Schreiber, Matthias; Liu, Michael; Biller, Beth; Nielsen, Eric; Hayward, Thomas (EDP Sciences, 2015)
      We present a new algorithm designed to improve the signal-to-noise ratio (S/N) of point and extended source detections around bright stars in direct imaging data. One of our innovations is that we insert simulated point ...
    • Radio continuum observations of the micro 
      Arce Tord, Carla Alessandra (Universidad de Chile, 2023)
      El estudio de la microf´ısica del polvo c´osmico abarca diversos fen´omenos astrof´ısicos: desde los mecanismos de emisi´on en el medio interestelar, hasta la formaci´on de planetesimales en discos circumestelares. En ...