YNAO OpenIR  > 双星与变星研究组
EVIDENCE OF A BROWN DWARF IN THE ECLIPSING DWARF NOVA Z CHAMAELEONIS
Dai ZB(戴智斌)1,2,3; Qian SB(钱声帮)1,2; Lajus, EF4; Dai, ZB (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
发表期刊ASTROPHYSICAL JOURNAL
2009-09
卷号703期号:1页码:109-113
DOI10.1088/0004-637X/703/1/109
产权排序第1完成单位
收录类别SCI
关键词Binaries: Eclipsing Stars: Individual (z Chamaeleonis) Novae Cataclysmic Variables
摘要We presented three new CCD observations of light minima of Z Chamaeleonis. All 187 available times of light minimum including 37 photographic data are compiled, and a new orbital period analysis is made by means of the standard O - C technique. The O - C diagram of Z Chamaeleonis presents a cyclical periodic change of similar to 32.57 yr with a high significance level. We attempted to apply two plausible mechanisms (i.e, Applegate's mechanism and light travel-time effect) to explain the cyclical variations of orbital period shown in the O - C diagram. Although the previous works suggested that solar-type magnetic cycles in the red dwarf are the best explanation, the analysis of Applegate's mechanism in this paper presents a negative result. Accordingly, a light travel-time effect is proposed, and a brown dwarf as a tertiary component orbiting around dwarf nova Z Chamaeleonis is derived with a significance level of greater than or similar to 81.6%, which may be a plausible explanation of the periodic variation in the systemic velocity of Z Chamaeleonis in superoutburst.
项目资助者Chinese Academy of Sciences [10573032, 10573013, 10433030] ; Yunnan Natural Science Foundation [2008CD157, 2005A0059M]
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0004-637X
URL查看原文
归档日期2009-09-22
WOS记录号WOS:000269625000013
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]HIGH-SPEED PHOTOMETRY ; PERIOD CHANGES ; Z-CHA ; CATACLYSMIC VARIABLES ; MAGNETIC BRAKING ; BINARY STARS ; QUIESCENCE ; OUTBURSTS ; VELOCITY ; CYCLES
引用统计
被引频次:17[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/5820
专题双星与变星研究组
通讯作者Dai, ZB (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
作者单位1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, P.O. Box 110, 650011 Kunming, China
2.United Laboratory of Optical Astronomy, Chinese Academy of Science (ULOAC), 100012 Beijing, People's Republic of China
3.Graduate School of the CAS, Beijing, People's Republic of China
4.Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de La Plata Paseo del Bosque s/n, 1900, La Plata, Pcia. Bs. As., Argentina
推荐引用方式
GB/T 7714
Dai ZB,Qian SB,Lajus, EF,et al. EVIDENCE OF A BROWN DWARF IN THE ECLIPSING DWARF NOVA Z CHAMAELEONIS[J]. ASTROPHYSICAL JOURNAL,2009,703(1):109-113.
APA Dai ZB,Qian SB,Lajus, EF,&Dai, ZB .(2009).EVIDENCE OF A BROWN DWARF IN THE ECLIPSING DWARF NOVA Z CHAMAELEONIS.ASTROPHYSICAL JOURNAL,703(1),109-113.
MLA Dai ZB,et al."EVIDENCE OF A BROWN DWARF IN THE ECLIPSING DWARF NOVA Z CHAMAELEONIS".ASTROPHYSICAL JOURNAL 703.1(2009):109-113.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
EVIDENCE OF A BROWN (315KB)期刊论文作者接受稿开放获取CC BY-NC-SA浏览 请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Dai ZB(戴智斌)]的文章
[Qian SB(钱声帮)]的文章
[Lajus, EF]的文章
百度学术
百度学术中相似的文章
[Dai ZB(戴智斌)]的文章
[Qian SB(钱声帮)]的文章
[Lajus, EF]的文章
必应学术
必应学术中相似的文章
[Dai ZB(戴智斌)]的文章
[Qian SB(钱声帮)]的文章
[Lajus, EF]的文章
相关权益政策
暂无数据
收藏/分享
文件名: EVIDENCE OF A BROWN DWARF IN THE ECLIPSING DWARF NOVA Z CHAMAELEONIS.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。