| Issue |
A&A
Volume 581, September 2015
|
|
|---|---|---|
| Article Number | A30 | |
| Number of page(s) | 20 | |
| Section | Stellar structure and evolution | |
| DOI | https://doi.org/10.1051/0004-6361/201425556 | |
| Published online | 27 August 2015 | |
Infrared study of transitional disks in Ophiuchus with Herschel⋆,⋆⋆,⋆⋆⋆,⋆⋆⋆⋆
1 European Space Astronomy Centre (ESA), PO Box, 78, 28691 Villanueva de la Cañada, Madrid Spain
e-mail: Isabel.Rebollido@sciops.esa.int
2 Centro de Astrobiología, INTA-CSIC, PO Box – Apdo. de correos 78, 28691 Villanueva de la Cañada, Madrid, Spain
3 ISDEFE – ESAC, PO Box, 78, 28691 Villanueva de la Cañada, Madrid, Spain
4 ESA, Scientific Support Office, Directorate of Science and Robotic Exploration, European Space Research and Technology Centre (ESTEC/SRE-S), Keplerlaan 1, 2201 AZ Noordwijk, The Netherlands
5 Laboratoire AIM Paris, Saclay, CEA/DSM, CNRS, Université Paris Diderot, IRFU, Service d’Astrophysique, Centre d’Études de Saclay, Orme des Merisiers, 91191 Gif-sur-Yvette, France
6 Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, PO Box 67, 1525 Budapest, Hungary
Received: 19 December 2014
Accepted: 2 July 2015
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.
Key words: stars: formation / stars: pre-main sequence / protoplanetary disks / planets and satellites: formation
Herschel is an ESA space observatory with science instruments provided by European-led Principal Investigator consortia and with important participation from NASA.
Final reduced Herschel maps are only available at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/581/A30
Appendix A is available in electronic form at http://www.aanda.org
All tables are also available at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/581/A30
© ESO, 2015
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