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

Taichi Uyama, Luca Ricci, Marie Ygouf, Massimo Robberto

Abstract

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.

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

Abstract

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.
Paper Structure (3 sections, 1 figure)

This paper contains 3 sections, 1 figure.

Table of Contents

  1. Introduction
  2. Data
  3. Results

Figures (1)

  • Figure 1: Identified sources around HD 163296 together with contrast and SNR information. Also highlighted are the locations of the outer ring feature resolved by the NIRCam observations Uyama2025 and the outer edge of the $^{12}{\rm CO}$ gas Isella2018. The extracted contrast and relative astrometry is available in Table \ref{['tab:bg_sources_grouped']} (this table is available in the arXiv version only), also in machine-readable form in the original article.