Dust properties of the HIP 79977 Debris Disk
Abstract
We present spectroscopic and polarimetric high contrast images of the HIP 79977 debris disk (F star in Upper Scorpius SFR) obtained in J, H and K bands with the Gemini Planet Imager (GPI). The disk is resolved in all observing modes and is highly inclined (~85 degrees) with polarized disk signal extending to the edge of the GPI field of view. We construct color dependent polarization fraction scattering phase functions for intermediate scattering angles (20 - 90 degrees) to constrain the dust grain properties of the disk. Preliminary radiative transfer modelling (using MCFOST) probes the particle size distribution, minimum grain size, porosity and composition of the debris belt.
- Publication:
-
American Astronomical Society Meeting Abstracts #233
- Pub Date:
- January 2019
- Bibcode:
- 2019AAS...23316314W