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Superhumps behavior during normal outbursts in ER Ursae Majoris: Spectroscopy and photometry
Zhao, YH1; Li, ZY1; Wu, X1; Peng, QH1; Zhang ZS(张周生)2; Li ZL(李自力)2
发表期刊PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
2006
卷号58期号:2页码:367-373
DOI10.1093/pasj/58.2.367
产权排序第2完成单位
收录类别SCI ; EI
关键词accretion, accretion disks novae, cataclysmic variable stars: individual (ER Ursae Majoris)
摘要

We undertook a 4-day spectroscopic observation and conducted a 13-day photometric study of an SU UMa-type dwarf nova, ER Ursae Majoris. The mean K-amplitude for the emission lines is 54 +/- 8 kms(-1) and the gamma velocity is 8 +/- 4 km s(-1) based on our spectroscopic results. A phase shift of 0.22 was also obtained. Our photometric observation confirms superhumps in normal outbursts of ER UMa. and reconciles contradictory observational results obtained by different authors. We find that superhumps possibly develop near each normal outburst maximum and fade out before the next Outburst maximum. If the observed humps were not late superhunips, but ordinary superhumps, much more theoretical work should be done to explain the new phenomena.

语种英语
学科领域恒星与银河系
学科门类理学 ; 理学::天文学
文章类型Article
ISSN0004-6264
URL查看原文
WOS记录号WOS:000237491800017
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]SU-UMA STARS ; CATACLYSMIC VARIABLES ; DWARF NOVA ; ACCRETION DISKS ; SIMULATIONS ; SUPEROUTBURST ; MODEL ; V1159-ORIONIS ; INSTABILITY
EI入藏号20215111359997
引用统计
被引频次:6[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/114a53/4211
专题其他
通讯作者Zhao, YH
作者单位1.Department of Astronomy, Nanjing University, Nanjing 210093, China
2.Yunnan Astronomical Observatory, Kunming 650011, China
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Zhao, YH,Li, ZY,Wu, X,et al. Superhumps behavior during normal outbursts in ER Ursae Majoris: Spectroscopy and photometry[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,2006,58(2):367-373.
APA Zhao, YH,Li, ZY,Wu, X,Peng, QH,Zhang ZS,&Li ZL.(2006).Superhumps behavior during normal outbursts in ER Ursae Majoris: Spectroscopy and photometry.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,58(2),367-373.
MLA Zhao, YH,et al."Superhumps behavior during normal outbursts in ER Ursae Majoris: Spectroscopy and photometry".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 58.2(2006):367-373.
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