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Steepening of the 820 micron continuum surface-brightness profile signals dust evolution in TW Hya's disk
Michiel R. Hogerheijde, David Bekkers, Paola Pinilla +5
Grain growth in planet-forming disks is the first step toward the formation of planets. The growth of grains and their inward drift leaves a distinct imprint on the dust surface-de…
A tunnel and a traffic jam: How transition disks maintain a detectable warm dust component despite the presence of a large planet-carved gap
Paola Pinilla, Lucia Klarmann, Tilman Birnstiel +3
We combined hydrodynamical simulations of planet-disk interactions with dust evolution models that include coagulation and fragmentation of dust grains over a large range of radii…
Direct imaging of the water snow line at the time of planet formation using two ALMA continuum bands
Andrea Banzatti, Paola Pinilla, Luca Ricci +3
Molecular snow lines in protoplanetary disks have been studied theoretically for decades because of their importance in shaping planetary architectures and compositions. The water…
Variability and dust filtration in the transition disk J160421.7-213028 observed in optical scattered light
P. Pinilla, J. de Boer, M. Benisty +9
Context. Some of transition disks show asymmetric structures in thermal sub-millimetre emission and optical scattered light. These structures can be the result of planet(s) or comp…
Dust Evolution Can Produce Scattered Light Gaps in Protoplanetary Disks
Tilman Birnstiel, Sean M. Andrews, Paola Pinilla +1
Recent imaging of protoplanetary disks with high resolution and contrast have revealed a striking variety of substructure. Of particular interest are cases where near-infrared scat…
Testing particle trapping in transition disks with ALMA
P. Pinilla, N. van der Marel, L. M. Pérez +6
We present new Atacama Large Millimeter/submillimeter Array (ALMA) continuum observations at 336GHz of two transition disks, SR21 and HD135344B. In combination with previous ALMA o…
A concentration of centimeter-sized grains in the Oph IRS 48 dust trap
Nienke van der Marel, Paola Pinilla, John Tobin +4
Azimuthally asymmetric dust distributions observed with ALMA in transition disks have been interpreted as dust traps. We present VLA Ka band (34 GHz or 0.9 cm) and ALMA Cycle 2 Ban…
Fingerprints of giant planets in the photospheres of Herbig stars
Mihkel Kama, Colin P. Folsom, Paola Pinilla
Around 2% of all A stars have photospheres depleted in refractory elements. This is hypothesized to arise from a preferential accretion of gas rather than dust, but the specific pr…
Vortex Formation and Evolution in Planet Harboring Disks under Thermal Relaxation
A. Lobo Gomes, H. Klahr, A. L. Uribe +2
We study the evolution of planet-induced vortices in radially stratified disks, with initial conditions allowing for radial buoyancy. For this purpose we run global two dimensional…
Scattered light images of spiral arms in marginally gravitationally unstable discs with an embedded planet
A. Pohl, P. Pinilla, M. Benisty +5
Scattered light images of transition discs in the near-infrared often show non-axisymmetric structures in the form of wide-open spiral arms in addition to their characteristic low-…
Sequential planet formation in the HD 100546 protoplanetary disk?
P. Pinilla, T. Birnstiel, C. Walsh
Context. The disk around the Herbig Ae star, HD 100546, shows structures that suggest the presence of two companions in the disk at and AU. The outer companion se…
Resolving structure of the disk around HD100546 at 7 mm with ATCA
Christopher Wright, Sarah Maddison, David Wilner +7
There is much evidence that planet formation is occurring in the disk around the Herbig Be star HD100546. To learn more about the processes occurring in this disk we conducted high…
A compact concentration of large grains in the HD142527 protoplanetary dust trap
Simon Casassus, Chris Wright, Sebastian Marino +11
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 conc…
Quantifying the gas inside dust cavities in transitional disks: implications for young planets
E. F. van Dishoeck, N. van der Marel, S. Bruderer +1
ALMA observations of a small sample of transitional disks with large dust cavities observed in Cycle 0 and 1 are summarized. The gas and dust surface density structures are inferre…
Dust trapping by spiral arms in gravitationally unstable protostellar discs
Giovanni Dipierro, Paola Pinilla, Giuseppe Lodato +1
In this paper we discuss the influence of gravitational instabilities in massive protostellar discs on the dynamics of dust grains. Starting from a Smoothed Particle Hydrodynamics…