English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Constraining dust properties of planet-forming disks via high angularresolution observations is fundamental to understanding how solids are trappedin substructures and how dust growth may be favored or accelerated therein. Weuse ALMA dust continuum observations of the Molecules with ALMA atPlanet-forming Scales (MAPS) disks and explore a large parameter space toconstrain the radial distribution of solid mass and maximum grain size in eachdisk, including or excluding dust scattering. In the nonscattering model, thedust surface density and maximum grain size profiles decrease from the innerdisks to the outer disks, with local maxima at the bright ring locations, asexpected from dust trapping models. The inferred maximum grain sizes from theinner to outer disks decrease from ~1 cm to 1 mm. For IM Lup, HD 163296, andMWC 480 in the scattering model, two solutions are compatible with theirobserved inner disk emission: one solution corresponding to a maximum grainsize of a few millimeters (similar to the nonscattering model), and the othercorresponding to a few hundred micrometer sizes. Based on the estimated Toomreparameter, only IM Lup -- which shows a prominent spiral morphology inmillimeter dust -- is found to be gravitationally unstable. The estimatedmaximum Stokes number in all the disks lies between 0.01 and 0.3, and theestimated turbulence parameters in the rings of AS 209 and HD 163296 are closeto the threshold where dust growth is limited by turbulent fragmentation. Thispaper is part of the MAPS special issue of the Astrophysical JournalSupplement.

Molecules with ALMA at Planet-forming Scales (MAPS) XIV: Revealing disk substructures in multi-wavelength continuum emission