thefirstccdphotometricstudyoftheopenclusterngc744

	thefirstccdphotometricstudyoftheopenclusterngc744
	Wang Kun 1; Deng Licai 1; Luo Zhiquan 1; Yan Zhengzhou 1; Liu Qili 2; Sun Jinjiang 2; Zhou Qiang 2
刊名	researchinastronomyandastrophysics
	2018
卷号	18 期号:11
ISSN号	1674-4527
英文摘要	We present the first CCD photometric observations of open cluster NGC 744, as part of the 50BiN Open Cluster Survey. The color-magnitude diagrams of this cluster were derived from absolute BV RI photometry on a good photometric night. A brief isochrone fitting gives a distance modulus of (m- M)(v) = 11.58 +/- 0.2 and a reddening of E(B-V) = 0.35 +/- 0.05 with an age of log t = 8.30 +/- 0.05. By carefully examining the RV time-series data, we discovered four new variable stars in a 20' x 20' field around the cluster. We classified them as three eclipsing binary stars and one delta Scuti pulsating star, mainly based on the light-curve shape, the detected periods and the positions on the color-magnitude diagrams.
语种	英语
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/29598]
专题	中国科学院紫金山天文台
作者单位	1.Department of Astronomy,China West Normal University 2.中国科学院紫金山天文台
推荐引用方式 GB/T 7714	Wang Kun,Deng Licai,Luo Zhiquan,et al. thefirstccdphotometricstudyoftheopenclusterngc744[J]. researchinastronomyandastrophysics,2018,18(11).
APA	Wang Kun.,Deng Licai.,Luo Zhiquan.,Yan Zhengzhou.,Liu Qili.,...&Zhou Qiang.(2018).thefirstccdphotometricstudyoftheopenclusterngc744.researchinastronomyandastrophysics,18(11).
MLA	Wang Kun,et al."thefirstccdphotometricstudyoftheopenclusterngc744".researchinastronomyandastrophysics 18.11(2018).