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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents



ID: 693759.0, MPI für Astronomie / Publikationen_mpia
DIGIT survey of far-infrared lines from protoplanetary disks. I. [O i], [C ii], OH, H2O, and CH+
Authors:Fedele, D.; Bruderer, S.; van Dishoeck, E. F.; Carr, J.; Herczeg, G. J.; Salyk, C.; Evans, N. J.; Bouwman, J.; Meeus, G.; Henning, T.; Green, J.; Najita, J. R.; Güdel, M.
Date of Publication (YYYY-MM-DD):2013
Title of Journal:Astronomy and Astrophysics
Volume:559
Start Page:id.A77 (22 pp)
Audience:Not Specified
Abstract / Description:We present far-infrared (50-200 μm) spectroscopic observations of young pre-main-sequence stars taken with Herschel/PACS as part of the DIGIT key project. The sample includes 16 Herbig AeBe and 4 T Tauri sources observed in SED mode covering the entire spectral range. An additional 6 Herbig AeBe and 4 T Tauri systems have been observed in SED mode with a limited spectral coverage. Multiple atomic fine structure and molecular lines are detected at the source position: [O i], [C ii], CO, OH, H2O, CH+. The most common feature is the [O i] 63 μm line detected in almost all of the sources, followed by OH. In contrast with CO, OH is detected toward both Herbig AeBe groups (flared and non-flared sources). An isothermal LTE slab model fit to the
Free Keywords:stars: variables: T Tauri; Herbig Ae/Be; astrochemistry; protoplanetary disks
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Astronomie
Identifiers:ISSN:0004-6361
URL:http://cdsads.u-strasbg.fr/abs/2013A%26A...559A..7...
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