A ring-like concentration of mm-sized particles in Sz 91
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F16%3A00540093" target="_blank" >RIV/67985815:_____/16:00540093 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1093/mnrasl/slw006" target="_blank" >https://doi.org/10.1093/mnrasl/slw006</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1093/mnrasl/slw006" target="_blank" >10.1093/mnrasl/slw006</a>
Alternative languages
Result language
angličtina
Original language name
A ring-like concentration of mm-sized particles in Sz 91
Original language description
Models of planet formation and disc evolution predict a variety of observables in the dust structure of protoplanetary discs. Here, we present Atacama Large Millimeter/submillimeter Array (ALMA) Band-6 and Band-7 observations of the transition disc Sz 91 showing that the continuum emission at 870 mu m, which is dominated by emission from large dust grains, is localized in an optically thin narrow ring. We find that most of the emission (similar to 95 per cent) is concentrated in a ring located at 110 au from the central star that is only about 44 au wide. In contrast, the (CO)-C-12 (2-1) emission peaks closer to the star and is detected up to similar to 488 au from the star. The concentration of large grains in a ring-like structure while the gas disc extends much further in and further out is in qualitative agreement with predictions of hydrodynamical models of planet-disc interactions including radial drift and gas drag.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
—
Continuities
—
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Monthly Notices of the Royal Astronomical Society
ISSN
1365-2966
e-ISSN
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Volume of the periodical
458
Issue of the periodical within the volume
1
Country of publishing house
GB - UNITED KINGDOM
Number of pages
5
Pages from-to
"L29"-"L33"
UT code for WoS article
000374226300007
EID of the result in the Scopus database
2-s2.0-84963627696