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Infrared study of transitional disks in Ophiuchus with Herschel

Abstract : Context. Observations of nearby star-forming regions with the Herschel Space Observatory complement our view of the protoplanetary disks in Ophiuchus with information about the outer disks. Aims. The main goal of this project is to provide new far-infrared fluxes for the known disks in the core region of Ophiuchus and to identify potential transitional disks using data from Herschel. Methods. We obtained PACS and SPIRE photometry of previously spectroscopically confirmed young stellar objects (YSO) in the region and analysed their spectral energy distributions.Results. From an initial sample of 261 objects with spectral types in Ophiuchus, we detect 49 disks in at least one Herschel band. We provide new far-infrared fluxes for these objects. One of them is clearly a new transitional disk candidate. Conclusions. The data from Herschel Space Observatory provides fluxes that complement previous infrared data and that we use to identify a new transitional disk candidate.
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Submitted on : Wednesday, October 19, 2016 - 10:13:21 AM
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Isabel Rebollido, Bruno Merín, Álvaro Ribas, Ignacio Bustamante, Hervé Bouy, et al.. Infrared study of transitional disks in Ophiuchus with Herschel. Astronomy and Astrophysics - A&A, EDP Sciences, 2015, 581, pp.A30. ⟨10.1051/0004-6361/201425556⟩. ⟨cea-01383675⟩



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