候选场水平分支和 A 类星的目录 III. 2MASS 清洗版
天体物理学
2009-11-11 v1
摘要
我们提供了 12056 颗星(其中 11516 颗为唯一星)的坐标和可用的光度信息,这些星被 Beers 等人在 HK 调查中识别为候选场水平分支或 A 类星。这些星的星等范围为 10 <= B <= 16.0,采用客观棱镜/干涉滤波器调查技术筛选。2MASS 信息的可用性允许组装该目录的清洗版本,包含可能的蓝色水平分支 (BHB) 星或蓝色跌马尾星,在颜色区间 -0.2 <= (B-V)o <= +0.2 中,这些星对调查银河系厚盘和内部星际的结构、运动学和动力学、银河系总质量和质量分布,以及作为潜在的前景/背景对象在努力中扮演重要角色——用于划定 H I 高速云的距离。与基于 UBV 光度和中分辨光谱的先前分类进行比较表明,这一类别包含 78% 的正确识别。
引用
@article{arxiv.astro-ph/0610282,
title = {A Catalog of Candidate Field Horizontal-Branch and A-Type Stars. III. A 2MASS-Cleaned Version},
author = {Timothy C. Beers and Tiago Almeida and Silvia Rossi and Ronald Wilhelm and Brian Marsteller},
journal= {arXiv preprint arXiv:astro-ph/0610282},
year = {2009}
}
备注
Accepted for publication in the ApJS. Submission is 27 pages, including 3 figures and 5 tables. Note that the full catalog listing (Tables 3 and 4) will appear in the ApJS in electronic form only. These are also available by request from the first author