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

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DOIResolve DOI: http://doi.org/10.1051/0004-6361/201015789
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TypeArticle
Journal titleAstronomy and Astrophysics
Volume525
Pages15; # of pages: 5
Subjectprotoplanetary disks; stars: pre-main sequence; planets and satellites: formation
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(circle dot), confirming that massive disks are present in the outer regions of the Orion nebula.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Herzberg Institute of Astrophysics
Peer reviewedYes
NPARC number19739599
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Record identifier7772dd66-e97b-4ea8-a5e8-8905d1ab4eaa
Record created2012-03-29
Record modified2016-05-09
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