SCExAO/CHARIS High-Contrast, Multi-Wavelength Imaging of the BD+45º598 Debris Disk

Maria Vincent, Kellen Lawson, Thayne Currie, Jonathan Williams

We present a multi-wavelength (1.16 micro m-2.37 micro m) view of the debris disk around BD+45o598, using the Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) system paired with the Coronagraphic High Angular Resolution Imaging Spectrograph (CHARIS). With an assumed age of 23 Myr, this source allows us to study the early evolution of debris disks and search for forming planets. We fit a scattered light model to our disk using a differential evolution algorithm, and constrain its geometry. We find the disk to have a peak density radius of R0 = 109.6 AU, an inclination of i = 88.1o, and position angle PA = 111.0o. While we do not detect a substellar companion in the disk, we provide contrast limits on the presence of a planet of ~10MJup within 14 AU of the star and ~4MJup beyond 35 AU. We also see that there is a clear gradient in color across the disk, as the outer region of the disk is relatively redder than the inner region that we investigate in the data and the model.

[Poster PDF File]