five

THE STATE-OF-THE-ART \textit{HST} ASTRO-PHOTOMETRIC ANALYSIS OF THE CORE OF $\omega$~CENTAURI. I. THE CATALOG

收藏
DataCite Commons2020-09-18 更新2025-04-09 收录
下载链接:
http://archive.stsci.edu/doi/resolve/resolve.html?doi=10.17909/T9WG6S
下载链接
链接失效反馈
官方服务:
资源简介:
We have constructed the most-comprehensive catalog of photometry and proper motions ever assembled for a globular cluster (GC). The core of \wcen\ has been imaged over 650 times through WFC3's UVIS and IR channels for the purpose of detector calibration. There exist from 4 to over 60 exposures through each of 26 filters, stretching continuously from F225W in the UV to F160W in the infrared. Furthermore, the 11-year baseline between these data and a 2002 ACS survey has allowed us to more than double the proper-motion accuracy and triple the number of well-measured stars compared to our previous groundbreaking effort. This totally unprecedented complete spectral coverage for over 470$\,$000 stars within the cluster's core, from the tip of the red-giant branch down to the white dwarfs, provides the best astro-photometric observational data base yet to understand the multiple-population phenomenon in any GC. In this first paper of the series we describe in detail the data-reduction processes and deliver the astro-photometric catalog to the astronomical community.
提供机构:
STScI/MAST
创建时间:
2016-10-18
二维码
社区交流群
二维码
科研交流群
商业服务