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

Ricci, L. and Mann, R. K. and Testi, L. and Williams, J. P. and Isella, A. and Robberto, M. and Natta, A. and Brooks, K. J. (2011) The (sub-)millimeter SED of protoplanetary disks in the outskirts of the Orion nebula cluster. Astronomy and Astrophysics, 525 . Art. No. A81. ISSN 0004-6361.

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We 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.

Item Type:Article
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URLURL TypeDescription
Testi, L.0000-0003-1859-3070
Williams, J. P.0000-0001-5058-695X
Isella, A.0000-0001-8061-2207
Additional Information:© 2010 ESO. Received 20 September 2010, Accepted 8 October 2010, Published online 02 December 2010. We thank the anonymous referee for his/her comments that helped to improve the manuscript. L.R. wishes to thank the support astronomers in Narrabri for their help during ATCA observations. L.R. acknowledges the Ph.D. fellowship of the International Max-Planck-Research School. J.P.W. is supported by the NSF through grant AST08-08144. A.I. is supported by the Jet Propulsion Laboratory (JPL) funded by NASA through the Michelson Fellowship Program. Support for CARMA construction was derived from the states of California, Illinois, and Maryland, the James S. McDonnell Foundation, the Gordon and Betty Moore Foundation, the Kenneth T. and Eileen L. Norris Foundation, the University of Chicago, the Associates of the California Institute of Technology, and the National Science Foundation. Ongoing CARMA development and operations are supported by the National Science Foundation under a cooperative agreement, and by the CARMA partner universities. The Australia Telescope Compact Array is part of the Australia Telescope which is funded by the Commonwealth of Australia for operation as a National Facility managed by CSIRO.
Funding AgencyGrant Number
International Max-Planck-Research SchoolUNSPECIFIED
NASA Michelson FellowshipUNSPECIFIED
Subject Keywords:protoplanetary disks – stars: pre-main sequence – planets and satellites: formation
Record Number:CaltechAUTHORS:20110125-084913331
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Official Citation:The (sub-)millimeter SED of protoplanetary disks in the outskirts of the Orion nebula cluster L. Ricci, R. K. Mann, L. Testi, J. P. Williams, A. Isella, M. Robberto, A. Natta and K. J. Brooks A&A 525 A81 (2011) DOI: 10.1051/0004-6361/201015789
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:21874
Deposited By: Benjamin Perez
Deposited On:25 Jan 2011 17:11
Last Modified:22 Nov 2019 23:48

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