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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents



ID: 731901.0, MPI für Astronomie / Publikationen_mpia
The abundance and thermal history of water ice in the disk surrounding HD 142527 from the DIGIT Herschel Key Program
Authors:Min, M.; Bouwman, J.; Dominik, C.; Waters, L. B. F. M.; Pontoppidan, K. M.; Hony, S.; Mulders, G. D.; Henning, T.; van Dishoeck, E. F.; Woitke, P.; Evans, N. J.; Team, D.
Date of Publication (YYYY-MM-DD):2016
Title of Journal:Astronomy and Astrophysics
Volume:593
Start Page:id. A11 (11 pp)
Audience:Not Specified
Abstract / Description:Context. The presence or absence of ice in protoplanetary disks is of great importance to the formation of planets. By enhancing solid surface density and increasing sticking efficiency, ice catalyzes the rapid formation of planetesimals and decreases the timescale of giant planet core accretion. <BR /> Aims: In this paper, we analyze the composition of the outer disk around the Herbig star HD 142527. We focus on the composition of water ice, but also analyze the abundances of previously proposed minerals. <BR /> Methods: We present new Herschel far-infrared spectra and a re-reduction of archival data from the Infrared Space Observatory (ISO). We modeled the disk using full 3D radiative transfer to obtain the disk structure. Also, we used an optically thin analysis of the outer disk spectrum to obtain firm constraints on the composition of the dust component. <BR /> Results: The water ice in the disk around
Free Keywords:protoplanetary disks; stars: individual: HD 142527; stars: pre-main sequence
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Astronomie
Identifiers:ISSN:0004-6361 %R 10.1051/0004-6361/201425432
URL:http://cdsads.u-strasbg.fr/abs/2016A%26A...593A..1...
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