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Shadows and spirals in the protoplanetary disk HD 100453
M. Benisty, T. Stolker, A. Pohl +46
Understanding the diversity of planets requires to study the morphology and the physical conditions in the protoplanetary disks in which they form. We observed and spatially resolv…
Can dead zones create structures like a transition disk?
Paola Pinilla, Mario Flock, Maria de Juan Ovelar +1
[Abridged] Regions of low ionisation where the activity of the magneto-rotational instability is suppressed, the so-called dead zones, have been suggested to explain gaps and asymm…
Multiple rings in the transition disk and companion candidates around RXJ1615.3-3255. High contrast imaging with VLT/SPHERE
J. de Boer, G. Salter, M. Benisty +36
We search for signs of ongoing planet-disk interaction and study the distribution of small grains at the surface of the transition disk around RXJ1615.3-3255 (RX J1615). We observe…
A gas density drop in the inner 6 AU of the transition disk around the Herbig Ae star HD 139614: Further evidence for a giant planet inside the disk?
A. Carmona, W. F. Thi, I. Kamp +16
Context: Quantifying the gas content inside the dust gaps of transition disks is important to establish their origin. Aims: We seek to constrain the surface density of warm gas in…
Spirals in protoplanetary disks from photon travel time
M. Kama, P. Pinilla, A. N. Heays
Spiral structures are a common feature in scattered-light images of protoplanetary disks, and of great interest as possible tracers of the presence of planets. However, other mecha…
Vortices and spirals in the HD135344B transition disk
Nienke van der Marel, Paolo Cazzoletti, Paola Pinilla +1
In recent years spiral structures have been seen in scattered light observations and signs of vortices in millimeter images of protoplanetary disks, both probably linked with the p…
Investigating dust trapping in transition disks with millimeter-wave polarization
A. Pohl, A. Kataoka, P. Pinilla +3
Spatially resolved polarized (sub-)mm emission has been observed for example in the protoplanetary disk around HL Tau. Magnetically aligned grains are commonly interpreted as the s…
Constraining turbulence mixing strength in transitional discs with planets using SPHERE and ALMA
M. de Juan Ovelar, P. Pinilla, M. Min +2
We investigate the effect that the turbulent mixing strength parameter plays on near-infrared polarimetric and sub-millimetre interferometric imaging observations o…