Photometric Study of the Open Cluster NGC 225

被引:0
|
作者
Yalyalieva, L. N. [1 ,2 ]
Glushkova, E., V [1 ,2 ]
Carraro, G. [3 ]
Ikonnikova, N. P. [2 ]
Gasymov, D. [1 ]
机构
[1] Moscow MV Lomonosov State Univ, Moscow 119234, Russia
[2] Moscow MV Lomonosov State Univ, Sternberg Astron Inst, Moscow 119234, Russia
[3] Padova Univ, I-35122 Padua, Italy
基金
俄罗斯基础研究基金会;
关键词
(Galaxy): open clusters and associations: general; (Galaxy): open clusters and associations: individual: NGC225; techniques: photometric;
D O I
10.1134/S1990341322010126
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
NGC 225 is a young moderately populated cluster with discrepant age, distance, and color excess estimates reported by different authors. We combine our photometry with the data from large surveys (2MASS, WISE, Pan-STARRS) to derive the parameters of NGC 225 and study the extinction law in the near infrared in the direction of the cluster. We use theoretical isochrones to infer the color excess E(B - V) = 0.29 +/- 0.01, distance D = 667 +/- 18 pc, and Age = 100-160 Myr. We fit extinction in the infra-red by a power-law relation, lambda(-alpha), and find alpha = 2.16 +/- 0.34.
引用
收藏
页码:78 / 83
页数:6
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