JWST/NIRCam 散射光盘 GTO 2780 项目：HD 10647、HD 32297、HD 61005、HD 107146 和 HD 181327 岩屑盘系统的全色日冕仪成像

本文介绍了韦布空间望远镜（JWST）NIRCam GTO 2780 项目对五个明亮岩屑盘系统的观测结果。研究利用 NIRCam 日冕仪在近红外波段获取了高分辨率图像，揭示了这些系统中尘埃颗粒的散射光特征及水冰分布。这些数据补充了先前的短波长观测，为理解行星系的动力学演化提供了重要信息。

arXiv:2608.27437v1 Announce Type: new Abstract: Debris disks, composed of rocks, boulders, planetesimals, and the dust produced in their collisions, present the most readily observable components of mature planetary systems. They also serve as valuable diagnostic tools, enabling studies of planetary dynamical interactions and mineral compositions. Observed from optical to radio wavelengths, each band reveals unique information about the dust populations. Optical and near-infrared observations are specifically sensitive to light scattered off the surfaces of the micron-sized particles. Here, we present results from the JWST/NIRCam GTO program 2780, designed to observe five disk systems previously identified to be exceptionally bright at optical wavelengths (HD 10647, HD 32297, HD 61005, HD 107146, and HD 181327) with six filters using the NIRCam coronagraphs. The NIRCam data complement previous shorter-wavelength images of these same systems. They reveal scattered light from the disks and from the extended halos of tiny grains under the influence of radiative forces, at high resolution and signal to noise. All the systems show evidence for water ice, although it can have differing radial distributions and tends to show stronger signatures in the halos. In the two cases we could analyze, the scattering phase function in the disks resembles the behavior