Evolutionary studies of the young star clusters: NGC 1960, NGC 2453 and NGC 2384

被引:5
作者
Hasan, Priya [1 ]
Kilambi, G. C. [1 ]
Hasan, S. N. [1 ]
机构
[1] Osmania Univ, Dept Astron, Hyderabad 500007, Andhra Pradesh, India
关键词
star clusters : young; near-infrared photometry; color-magnitude diagrams; pre-mainsequence stars; 2MASS;
D O I
10.1007/s10509-007-9705-3
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We report the analysis of the young star clusters NGC 1960, NGC 2453 and NGC 2384 observed in the J (1.12 mu m), H (1.65 mu m) and K(2.2 mu m) bands. Estimates of reddening, distance and age as E(B-V)=0.25, d=1380 pc and t=31.6 to 125 Myr for NGC 1960, E(B-V)=0.47, d=3311 pc and t=40 to 200 Myr for NGC 2453 and E(B-V)=0.25, d=3162 pc and t=55 to 125 Myr for NGC 2384 have been obtained. Also, we have extended the color-magnitude diagrams of these clusters to the fainter end and thus extended the luminosity functions to fainter magnitudes. The evolution of the main sequence and luminosity functions of these clusters have been compared with themselves as well as Lynga 2 and NGC 1582.
引用
收藏
页码:363 / 371
页数:9
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