Photometric and Astrometric Information for Sources around HD~163296 Revealed by JWST/NIRCam Coronagraphy

Background stars observed through a circumstellar disk provide valuable benchmarks for investigating the disk's extinction properties. The HD~163296 system is an excellent case study due to its large disk, the clearly visible extinction effects in JWST/NIRCam data, and the presence of numerous background sources within or around its disk. We present the measured contrasts and astrometry of sources surrounding HD~163296 from Cycle~1 JWST/NIRCam coronagraphic observations, which will serve as a useful reference for future studies of the disk's extinction characteristics.

Source: arXiv:2603.18338v1 - http://arxiv.org/abs/2603.18338v1 PDF: https://arxiv.org/pdf/2603.18338v1 Original Link: http://arxiv.org/abs/2603.18338v1