中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
A PROBABLE HYBRID gamma DOR-delta SCUTI VARIABLE DISCOVERED IN THE OPEN CLUSTER NGC 2126

文献类型:期刊论文

作者Zhang, X. B.; Deng, L. C.; Luo, C. Q.
刊名ASTRONOMICAL JOURNAL
出版日期2012-11-01
卷号144期号:5
关键词open clusters and associations: individual (NGC 2126) stars: individual (GSC3382-0957) stars: oscillations stars: variables: delta Scuti
英文摘要We have carried out high-precision B- and V-band time-series CCD photometry to investigate the physical nature of an oscillating EA-type binary system in the intermediate-age open cluster NGC 2126. Analysis of the light variability for about 500 stars in this field has led to the discovery of three new variables, two pulsating stars and one EA-type eclipsing binary. One of the former, GSC3382-0957, a probable cluster member, is shown to have both p- and g-mode pulsations. A frequency analysis reveals two confident pulsating modes at f(1) = 14.835 c/d and f(2) = 1.812 c/d from both the B- and V-band data. In the color-magnitude diagram, the star is located at the lower edge of the delta Scuti instability strip, where the delta Sct and gamma Dor stars overlap. It is suggested that this is a probable hybrid gamma Dor-delta Sct star.
收录类别SCI
语种英语
WOS记录号WOS:000310530400017
源URL[http://ir.bao.ac.cn/handle/114a11/6252]  
专题国家天文台_光学天文研究部
作者单位Chinese Acad Sci, Key Lab Opt Astron, Natl Astron Observ, Beijing 100012, Peoples R China
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GB/T 7714
Zhang, X. B.,Deng, L. C.,Luo, C. Q.. A PROBABLE HYBRID gamma DOR-delta SCUTI VARIABLE DISCOVERED IN THE OPEN CLUSTER NGC 2126[J]. ASTRONOMICAL JOURNAL,2012,144(5).
APA Zhang, X. B.,Deng, L. C.,&Luo, C. Q..(2012).A PROBABLE HYBRID gamma DOR-delta SCUTI VARIABLE DISCOVERED IN THE OPEN CLUSTER NGC 2126.ASTRONOMICAL JOURNAL,144(5).
MLA Zhang, X. B.,et al."A PROBABLE HYBRID gamma DOR-delta SCUTI VARIABLE DISCOVERED IN THE OPEN CLUSTER NGC 2126".ASTRONOMICAL JOURNAL 144.5(2012).

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来源:国家天文台

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