Probing Dust Settling in Proto-planetary Disks with ALMA
Investigating the dynamical evolution of dust grains in proto-planetary disks is a key issue to understand how planets should form. We identify under which conditions dust settling can be constrained by high angular resolution ALMA observations at mm wavelengths, and which observational strategie...
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2013-04-01
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Series: | EPJ Web of Conferences |
Online Access: | http://dx.doi.org/10.1051/epjconf/20134602002 |
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doaj-9f1e200d6f0540d9ac5ec19736c0eb932021-08-02T05:33:38ZengEDP SciencesEPJ Web of Conferences2100-014X2013-04-01460200210.1051/epjconf/20134602002Probing Dust Settling in Proto-planetary Disks with ALMAPiétu VincentGuilloteau StéphaneDutrey AnneBoehler YannInvestigating the dynamical evolution of dust grains in proto-planetary disks is a key issue to understand how planets should form. We identify under which conditions dust settling can be constrained by high angular resolution ALMA observations at mm wavelengths, and which observational strategies are suited for such studies. We find out that an angular resolution better than or equal to » 0.1” (using 2.3 km baselines at 0.8mm) allows us to constrain the dust scale height and flaring index with sufficient precision to unambiguously distinguish between settled and non-settled disks, provided the inclination is close enough to edge-on (i > 75°). Ignoring dust settling and assuming hydrostatic equilibrium when analyzing such disks biase the derived dust temperature, the radial dependency of the dust emissivity index and the surface density distribution. http://dx.doi.org/10.1051/epjconf/20134602002 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Piétu Vincent Guilloteau Stéphane Dutrey Anne Boehler Yann |
spellingShingle |
Piétu Vincent Guilloteau Stéphane Dutrey Anne Boehler Yann Probing Dust Settling in Proto-planetary Disks with ALMA EPJ Web of Conferences |
author_facet |
Piétu Vincent Guilloteau Stéphane Dutrey Anne Boehler Yann |
author_sort |
Piétu Vincent |
title |
Probing Dust Settling in Proto-planetary Disks with ALMA |
title_short |
Probing Dust Settling in Proto-planetary Disks with ALMA |
title_full |
Probing Dust Settling in Proto-planetary Disks with ALMA |
title_fullStr |
Probing Dust Settling in Proto-planetary Disks with ALMA |
title_full_unstemmed |
Probing Dust Settling in Proto-planetary Disks with ALMA |
title_sort |
probing dust settling in proto-planetary disks with alma |
publisher |
EDP Sciences |
series |
EPJ Web of Conferences |
issn |
2100-014X |
publishDate |
2013-04-01 |
description |
Investigating the dynamical evolution of dust grains in proto-planetary disks is a key issue to understand how planets should form. We identify under which conditions dust settling can be constrained by high angular resolution ALMA observations at mm wavelengths, and which observational strategies are suited for such studies. We find out that an angular resolution better than or equal to » 0.1” (using 2.3 km baselines at 0.8mm) allows us to constrain the dust scale height and flaring index with sufficient precision to unambiguously distinguish between settled and non-settled disks, provided the inclination is close enough to edge-on (i > 75°). Ignoring dust settling and assuming hydrostatic equilibrium when analyzing such disks biase the derived dust temperature, the radial dependency of the dust emissivity index and the surface density distribution. |
url |
http://dx.doi.org/10.1051/epjconf/20134602002 |
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AT pietuvincent probingdustsettlinginprotoplanetarydiskswithalma AT guilloteaustephane probingdustsettlinginprotoplanetarydiskswithalma AT dutreyanne probingdustsettlinginprotoplanetarydiskswithalma AT boehleryann probingdustsettlinginprotoplanetarydiskswithalma |
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