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CO gas inside the protoplanetary disk cavity in HD 142527: disk structure from ALMA
Sebastian Perez, S. Casassus, F. Ménard +6
Inner cavities and annular gaps in circumstellar disks are possible signposts of giant planet formation. The young star HD 142527 hosts a massive protoplanetary disk with a large c…
Spatially resolved HCN J=4--3 and CS J=7--6 emission from the disk around HD 142527
G. van der Plas, S. Casassus, F. Menard +4
The disk around HD 142527 attracts a lot of attention, amongst others because of its resolved (sub) mm dust continuum that is concentrated into a horseshoe-shape towards the north…
A CO survey in planet-forming disks: characterizing the gas content in the epoch of planet formation
A. S. Hales, I. De Gregorio-Monsalvo, B. Montesinos +13
We carried out a 12CO(3-2) survey of 52 southern stars with a wide range of IR excesses (LIR/L*) using the single dish telescopes APEX and ASTE. The main aims were (1) to character…
Spiral arms in the disk of HD 142527 from CO emission lines with ALMA
Valentin Christiaens, Simon Casassus, Sebastian Perez +2
In view of both the size of its gap and the previously reported asymmetries and near-infrared spiral arms, the transition disk of the Herbig Fe star HD 142527 constitutes a remarka…