SCExAO/CHARIS Multi-Wavelength, High-Contrast Imaging of the BD+45^∘598 Debris Disk
arxiv(2024)
摘要
We present a multi-wavelength (1.16μm-2.37μm) view of the debris disk
around BD+45^∘598, using the Subaru Coronagraphic Extreme Adaptive Optics
system paired with the Coronagraphic High Angular Resolution Imaging
Spectrograph. 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 R_0
= 109.6 au, an inclination of i = 88.1^∘, and position angle PA =
111.0^∘. While we do not detect a substellar companion in the disk, our
calculated contrast limits indicate sensitivity to planets as small as ∼ 10
M_ Jup at a projected separation of 12 au of the star, and as small as
∼ 4 M_ Jup beyond 38 au. When measuring intensity as a function of
wavelength, the disk color constrains the minimum dust grain size within a
range of ∼0.13 to 1.01μm.
更多查看译文
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要