SIMBAD references

2019A&A...622A..75L - Astronomy and Astrophysics, volume 622A, 75-75 (2019/2-1)

Ring structure in the MWC 480 disk revealed by ALMA.

LIU Y., DIPIERRO G., RAGUSA E., LODATO G., HERCZEG G.J., LONG F., HARSONO D., BOEHLER Y., MENARD F., JOHNSTONE D., PASCUCCI I., PINILLA P., SALYK C., VAN DER PLAS G., CABRIT S., FISCHER W.J., HENDLER N., MANARA C.F., NISINI B., RIGLIACO E., AVENHAUS H., BANZATTI A. and GULLY-SANTIAGO M.

Abstract (from CDS):

Gap-like structures in protoplanetary disks are likely related to planet formation processes. In this paper, we present and analyze high-resolution (0.17''x 0.11'') 1.3mm ALMA continuum observations of the protoplanetary disk around the Herbig Ae star MWC 480. Our observations show for the first time a gap centered at ∼74au with a width of ∼23au, surrounded by a bright ring centered at ∼98au from the central star. Detailed radiative transfer modeling of the ALMA image and the broadband spectral energy distribution is used to constrain the surface density profile and structural parameters of the disk. If the width of the gap corresponds to 4-8 times the Hill radius of a single forming planet, then the putative planet would have a mass of 0.4-3MJ. We test this prediction by performing global three-dimensional smoothed particle hydrodynamic gas/dust simulations of disks hosting a migrating and accreting planet. We find that the dust emission across the disk is consistent with the presence of an embedded planet with a mass of ∼2.3MJ at an orbital radius of ∼78au. Given the surface density of the best-fit radiative transfer model, the amount of depleted mass in the gap is higher than the mass of the putative planet, which satisfies the basic condition for the formation of such a planet.

Abstract Copyright: © ESO 2019

Journal keyword(s): protoplanetary disks - planet-disk interactions - radiative transfer - stars: formation - stars: individual: MWC 480

VizieR on-line data: <Available at CDS (J/A+A/622/A75): list.dat fits/*>

Simbad objects: 11

goto Full paper

goto View the reference in ADS

To bookmark this query, right click on this link: simbad:2019A&A...622A..75L and select 'bookmark this link' or equivalent in the popup menu


2021.01.22-21:44:52

© Université de Strasbourg/CNRS

    • Contact