ω Centauri 中RR Lyrae 变星的近红外观测
天体物理学
2007-05-23 v1
摘要
我们报告了对Galactic Globular Cluster ω Cen中181颗RR Lyrae 变星的近红外(NIR) J和K_s 波段观测。将预测与经验NIR Period-Luminosity(PL)关系的斜率进行比较，显示良好一致性。基于NIR PL关系得到的星系距离估计与基于不同标准烛台的最新测定值基本一致，给出真实平均距离模 ，及 kpc。
引用
@article{arxiv.astro-ph/0510174,
title = {Near-Infrared Observations of RR Lyrae Variables in $\omega$ Centauri},
author = {M. Del Principe and A. M. Piersimoni and J. Storm and G. Bono and F. Caputo and S. Cassisi and L. M. Freyhammer and M. Marconi and P. B. Stetson},
journal= {arXiv preprint arXiv:astro-ph/0510174},
year = {2007}
}
备注
2 pages, 1 figure, to appear in the proceedings of the Workshop "Stellar Pulsation and Evolution", 2005. Monte Porzio Catone, Italy. Eds.: A.R. Walker and G. Bono