Asymmetric transition disks: Vorticity or eccentricity?
S. AtaieeDepartment of Physics, Faculty of Sciences, Ferdowsi University of Mashhad, 9177948974 Mashhad, IranP. PinillaHeidelberg University, Center for Astronomy, Institute for Theoretical Astrophysics, Albert Ueberle Str. 2, 69120 Heidelberg, GermanyA. ZsomDepartment of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USAC. P. DullemondHeidelberg University, Center for Astronomy, Institute for Theoretical Astrophysics, Albert Ueberle Str. 2, 69120 Heidelberg, GermanyC. DominikAfdeling Sterrenkunde, Radboud Universiteit Nijmegen, Postbus 9010, 6500 GL, Nijmegen, The NetherlandsJ. GhanbariDepartment of Physics, Faculty of Sciences, Ferdowsi University of Mashhad, 9177948974 Mashhad, Iran
2013en
ABI
Аннотация
Context. Transition disks typically appear in resolved millimeter observations as giant dust rings surrounding their young host stars. More accurate observations with ALMA have shown several of these rings to be in fact asymmetric: they have lopsided shapes. It has been speculated that these rings act as dust traps, which would make them important laboratories for studying planet formation. It has been shown that an elongated giant vortex produced in a disk with a strong viscosity jump strikingly resembles the observed asymmetric rings.
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