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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents



ID: 720033.0, MPI für Astronomie / Publikationen_mpia
Near-IR polarized scattered light imagery of the DoAr 28 transitional disk
Authors:Rich, E. A.; Wisniewski, J. P.; Mayama, S.; Brandt, T. D.; Hashimoto, J.; Kudo, T.; Kusakabe, N.; Espaillat, C.; Abe, L.; Akiyama, E.; Brandner, W.; Carson, J. C.; Currie, T.; Egner, S.; Feldt, M.; Follette, K.; Goto, M.; Grady, C. A.; Guyon, O.; Hayano, Y.; Hayashi, M.; Hayashi, S. S.; Henning, T.; Hodapp, K. W.; Ishii, M.; Iye, M.; Janson, M.; Kandori, R.; Knapp, G. R.; Kuzuhara, M.; Kwon, J.; Matsuo, T.; McElwain, M. W.; Miyama, S.; Morino, J.-I.; Moro-Martin, A.; Nishimura, T.; Pyo, T.-S.; Qi, C.; Serabyn, E.; Suenaga, T.; Suto, H.; Suzuki, R.; Takahashi, Y. H.; Takami, M.; Takato, N.; Terada, H.; Thalmann, C.; Tomono, D.; Turner, E. L.; Watanabe, M.; Yamada, T.; Takami, H.; Usuda, T.; Tamura, M.
Date of Publication (YYYY-MM-DD):2015
Title of Journal:The Astronomical Journal
Volume:150
Issue / Number:3
Start Page:id. 86 (9 pp)
Audience:Not Specified
Abstract / Description:We present the first spatially resolved polarized scattered light H-band detection of the DoAr 28 transitional disk. Our two epochs of imagery detect the scattered light disk from our effective inner working angle of 0.″10 (13 AU) out to 0.″50 (65 AU). This inner working angle is interior to the location of the system’s gap inferred by previous studies using spectral energy distribution modeling (15 AU). We detected a candidate point source companion 1.″08 northwest of the system; however, our second epoch of imagery strongly suggests that this object is a background star. We constructed a grid of Monte Carlo Radiative Transfer models of the system, and our best fit models utilize a modestly inclined (50°), 0.01 {M}ȯ disk that has a partially depleted inner gap from the dust sublimation radius out to ∼8 AU. Subtracting this best fit, axi-symmetric model from our polarized intensity data reveals evidence for two small asymmetries in the disk, which could be attributable to a variety of mechanisms.
Free Keywords:protoplanetary disks; stars: variables: T Tauri; Herbig Ae/Be
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Astronomie
Identifiers:ISSN:0004-6256
URL:http://cdsads.u-strasbg.fr/abs/2015AJ....150...86R
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