Variability Study of the SX Phoenicis Star BL Camelopardalis
JianNing Fu1; Chao Zhang1; Kanokwan Marak2; Chayan Boonyarak2; Pongsak Khokhuntod2; ShiYang Jiang3
Source PublicationChinese Astronomy and Astrophysics
AbstractNew time-series photometric observations of BL Cam in the V band and white light were made during 2005 to 2007 at the Xinglong Station of China. The frequency analysis confirms two closely separated frequencies, 25.181 d-1 and 25.571 d-1, but the frequency of 31-32 d-1 reported in the literature was not detected in the new data. New times of maximum light were determined from both our light curves and those available on Internet, allowing a more comprehensive study of the O - C diagram, together with the times of maximum light in the literature. A new interpretation, including the period increasing before 1988 and decreasing since 1992 of BL Cam and the light-time effect in a binary system, looks plausible.
Keywordtechniques photometric - stars variables delta Scuti - stars individual BL Cam
Document Type期刊论文
2.Faculty of Science, Naresuan University
Recommended Citation
GB/T 7714
JianNing Fu,Chao Zhang,Kanokwan Marak,et al. Variability Study of the SX Phoenicis Star BL Camelopardalis[J]. Chinese Astronomy and Astrophysics,2008,8(2):237.
APA JianNing Fu,Chao Zhang,Kanokwan Marak,Chayan Boonyarak,Pongsak Khokhuntod,&ShiYang Jiang.(2008).Variability Study of the SX Phoenicis Star BL Camelopardalis.Chinese Astronomy and Astrophysics,8(2),237.
MLA JianNing Fu,et al."Variability Study of the SX Phoenicis Star BL Camelopardalis".Chinese Astronomy and Astrophysics 8.2(2008):237.
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