High-Contrast Near-Infrared Imaging Polarimetry of the Protoplanetary Disk around RY Tau

Abstract

We present near-infrared coronagraphic imaging polarimetry of RY Tau. The scattered light in the circumstellar environment was imaged at H-band at a high resolution (~0".05) for the first time, using Subaru-HiCIAO. The observed polarized intensity (PI) distribution shows a butterfly-like distribution of bright emission with an angular scale similar to the disk observed at millimeter wavelengths. This distribution is offset toward the blueshifted jet, indicating the presence of a geometrically thick disk or a remnant envelope, and therefore the earliest stage of the Class II evolutionary phase. We perform comparisons between the observed PI distribution and disk models with: (1) full radiative transfer code, using the spectral energy distribution (SED) to constrain the disk parameters; and (2) monochromatic simulations of scattered light which explore a wide range of parameters space to constrain the disk and dust parameters. We show that these models cannot consistently explain the observed PI distribution, SED, and the viewing angle inferred by millimeter interferometry. We suggest that the scattered light in the near-infrared is associated with an optically thin and geometrically thick layer above the disk surface, with the surface responsible for the infrared SED. Half of the scattered light and thermal radiation in this layer illuminates the disk surface, and this process may significantly affect the thermal structure of the disk.

35 pages, 14 figures, 7 tables, accepted for publication in Astrophysical Journal

References in corpus (16)

• Protoplanetary Disk Structures in Ophiuchus
• Structure and evolution of pre-main sequence circumstellar disks
• Spiral Arms in the Asymmetrically Illuminated Disk of MWC 758 and Constraints on Giant Planets
• Direct Imaging of Fine Structures in Giant Planet Forming Regions of the Protoplanetary Disk around AB Aurigae
• LkH$\alpha$ 330: Evidence for dust clearing through resolved submillimeter imaging
• Polarimetric Imaging of Large Cavity Structures in the Pre-transitional Protoplanetary Disk around PDS 70: Observations of the disk
• Subaru Imaging of Asymmetric Features in a Transitional Disk in Upper Scorpius
• Speckle Suppression Through Dual Imaging Polarimetry, and a Ground-Based Image of the HR 4796A Circumstellar Disk
• The HD 163296 Circumstellar Disk in Scattered Light: Evidence of Time-Variable Self-Shadowing
• Mapping H-band Scattered Light Emission in the Mysterious SR21 Transitional Disk
• Optical spectroscopic variability of Herbig Ae/Be stars
• The Structure of Pre-transitional Protoplanetary Disks I: Radiative Transfer Modeling of the Disk+Cavity in the PDS 70 system
• High-Contrast NIR Polarization Imaging of MWC480
• High-Resolution Near-Infrared Polarimetry of a Circumstellar Disk around UX Tau A
• Reduction of polarimetric data using Mueller calculus applied to Nasmyth instruments
• Time Variability of Emission Lines for Four Active T Tauri Stars (I): October--December in 2010

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