疏散星团King 14和NGC 146的年龄测定
天体物理学
2009-09-29 v1
摘要
我们基于2MASS J和Ks波段测光数据，对疏散星团King 14和NGC 146使用色星等图与等时线拟合，发现King 14的年龄为log(age) = 7.8 (63 ±8 Myr)，NGC 146的年龄为log(age) = 7.5 (32 ±8 Myr)。我们的年龄测定结果大于Lynga [5]给出的值(King 14: log(age) = 7.2, NGC 146: log(age) = 7.1)，而小于Dias [6]给出的值(King 14: log(age) = 7.9, NGC 146: log(age) = 7.8)。
引用
@article{arxiv.0809.0371,
title = {Age determinations of the open star clusters King 14 and NGC 146},
author = {Valentin Kopchev and Petko Nedialkov and Georgy Petrov},
journal= {arXiv preprint arXiv:0809.0371},
year = {2009}
}
备注
4 pages, 2 figures