The (sub-)millimeter SED of protoplanetary disks in the outskirts of the Orion nebula cluster

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TypeArticle
Journal titleAstronomy and Astrophysics
ISSN0004-6361
Volume525
Issue19
Article numberA81
SubjectCircumstellar disks; Cluster centers; High-mass stars; Low-mass stars; Orion Nebula; Planets and satellites: formation; Protoplanetary disks; Spectral indices; Stars: pre-main sequence; Submillimeter wavelengths; Disks (machine components); Disks (structural components); Dust; Grain size and shape; Planets; Satellites; Stars; Grain growth
AbstractWe present the sub-mm/mm SED for a sample of eight young circumstellar disks in the outer regions of the Orion nebula cluster (ONC). New observations were carried out at 2.9 mm with the CARMA array and for one disk, 216-0939, at 3.3 and 6.8 mm with ATCA. By combining these new millimeter data with literature measurements at sub-millimeter wavelengths we investigate grain growth and measure the dust mass in protoplanetary disks in the ONC. These data provide evidence for dust grain growth to at least millimeter-sizes for the first time in a high-mass star-forming region. The obtained range in sub-mm/mm spectral index, namely 1.5-3.2, indicates that for disks in the outskirts of the ONC (projected distance from the cluster center between about 0.4 pc and 1.5 pc) grain growth to mm sizes occurs in the same manner as disks in regions where only low-mass stars form. Finally, in our sample three disks are more massive than about 0.05 M, confirming that massive disks are present in the outer regions of the Orion nebula. © ESO, 2010. © 2010 ESO.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); NRC Herzberg Institute of Astrophysics (HIA-IHA)
Peer reviewedYes
NPARC number21271487
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Record identifier91200354-6d3a-4d9c-8b20-0d069d7d9649
Record created2014-03-24
Record modified2016-05-09
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