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A quantification of hydrodynamical effects on protoplanetary dust growth
E. Sellentin, J. P. Ramsey, F. Windmark +1
Context. The growth process of dust particles in protoplanetary disks can be modeled via numerical dust coagulation codes. In this approach, physical effects that dominate the dust…
Herbig Stars' Near-Infrared Excess: An Origin in the Protostellar Disk's Magnetically-Supported Atmosphere
N. J. Turner, M. Benisty, C. P. Dullemond +1
Young stars with masses 2-8 Suns, called the Herbig Ae and Be stars, often show a near-infrared excess too large to explain with a hydrostatically-supported circumstellar disk of g…
Planetesimal formation via sweep-up growth at the inner edge of dead zones
J. Drazkowska, F. Windmark, C. P. Dullemond
The early stages of planet formation are still not well understood. Coagulation models have revealed numerous obstacles to the dust growth, such as the bouncing, fragmentation and…
A Major Asymmetric Dust Trap in a Transition Disk
Nienke van der Marel, Ewine F. van Dishoeck, Simon Bruderer +9
The statistics of discovered exoplanets suggest that planets form efficiently. However, there are fundamental unsolved problems, such as excessive inward drift of particles in prot…
Explaining millimeter-sized particles in brown dwarf disks
P. Pinilla, T. Birnstiel, M. Benisty +5
Planets have been detected around a variety of stars, including low-mass objects, such as brown dwarfs. However, such extreme cases are challenging for planet formation models. Rec…
Simulated ALMA observations of collapsing low-mass dense cores
F. Levrier, B. Commerçon, A. J. Maury +3
We present a possible identification strategy for first hydrostatic core (FHSC) candidates and make predictions of ALMA dust continuum emission maps from these objects. We analyze…
Lopsided dust rings in transition disks
T. Birnstiel, C. P. Dullemond, P. Pinilla
Context. Particle trapping in local or global pressure maxima in protoplanetary disks is one of the new paradigms in the theory of the first stages of planet formation. However, fi…