First scattered-light image of the debris disk around HD 131835 with the Gemini Planet Imager

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DOIResolve DOI: http://doi.org/10.1088/2041-8205/815/1/L14
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TypeArticle
Journal titleThe Astrophysical Journal Letters
ISSN2041-8205
Volume815
Issue1
Article numberL14
AbstractWe present the first scattered-light image of the debris disk around HD 131835 in the H band using the Gemini Planet Imager. HD 131835 is a ∼15 Myr old A2IV star at a distance of ∼120 pc in the Sco-Cen OB association. We detect the disk only in polarized light and place an upper limit on the peak total intensity. No point sources resembling exoplanets were identified. Compared to its mid-infrared thermal emission, in scattered light the disk shows similar orientation but different morphology. The scattered-light disk extends from ∼75 to ∼210 AU in the disk plane with roughly flat surface density. Our Monte Carlo radiative transfer model can describe the observations with a model disk composed of a mixture of silicates and amorphous carbon. In addition to the obvious brightness asymmetry due to stronger forward scattering, we discover a weak brightness asymmetry along the major axis, with the northeast side being 1.3 times brighter than the southwest side at a 3σ level.
Publication date
PublisherIOP Publishing
LanguageEnglish
AffiliationNational Research Council Canada; National Science Infrastructure
Peer reviewedYes
NPARC number21277355
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Record identifierc8c392b9-e698-44f7-9a1a-8d48dc02c480
Record created2016-03-09
Record modified2016-11-15
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