The Shadow Knows: Using Shadows to Investigate the Structure of the Pretransitional Disk of HD 00453
Abstract
With the advent of extreme AO instruments we have begun to obtain more detailed images of circumstellar disks. Recently these images have revealed several disks which contain azimuthally- localized dark features, such as HD 100453, some of which have been interpreted as shadows cast by an inner disk component which is not coplanar with the outer disk. Through careful study of these dark features we are able to probe the structure of the disk and make testable predictions using a 3D Monte Carlo radiative transfer code. Through the use of this code and comparison to recent SPHERE and GPI images we have determined that the shadows seen in the circumstellar disk of HD 100453 are caused by a misinclined inner disk which is at an inclination approximately 45° from coplanarity. In order to cause this misinclination the disk must have undergone a signicant torqueing event such as giant planet-giant planet scattering.
- Publication:
-
American Astronomical Society Meeting Abstracts #229
- Pub Date:
- January 2017
- Bibcode:
- 2017AAS...22934514L