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The first Doppler images of the eclipsing binary SZ Piscium
Xiang Y(项越)1,2,3; Gu SH(顾盛宏)1,2; Cameron, A. Collier4; Barnes, J. R.5; Zhang, Liyun6; Xiang, Y (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China.
发表期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2016-02-11
卷号456期号:1页码:314-322
DOI10.1093/mnras/stv2642
产权排序第1完成单位
收录类别SCI
关键词Stars Activity-binaries Eclipsing-stars Imaging-stars Individual Sz Psc-starspots
摘要We present the first Doppler images of the active eclipsing binary system SZ Psc, based on the high-resolution spectral data sets obtained in 2004 November and 2006 September-December. The least-squares deconvolution technique was applied to derive high signal-to-noise profiles from the observed spectra of SZ Psc. Absorption features contributed by a third component of the system were detected in the LSD profiles at all observed phases. We estimated the mass and period of the third component to be about 0.9M circle dot and 1283 +/- 10 d, respectively. After removing the contribution of the third body from the least-squares deconvolved profiles, we derived the surface maps of SZ Psc. The resulting Doppler images indicate significant starspot activities on the surface of the K subgiant component. The distributions of star-spots are more complex than that revealed by previous photometric studies. The cooler K component exhibited pronounced high-latitude spots as well as numerous low- and intermediate-latitude spot groups during the entire observing seasons, but did not show any large, stable polar cap, different from many other active RS CVn-type binaries.
项目资助者National Natural Science Foundation of China (10373023,10773027,11333006,U1431114) ; Chinese Academy of Sciences (KJCX2-YW-T24)
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0035-8711
URL查看原文
归档日期2016-12-30
WOS记录号WOS:000368010000058
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]II-PEGASI ; ACTIVE STARS ; CHROMOSPHERIC ACTIVITY ; ORBITAL PERIOD ; V711 TAURI ; HR 1099 ; EVOLUTION ; EMISSION
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被引频次:1[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/114a53/9406
专题系外行星研究组
中国科学院天体结构与演化重点实验室
通讯作者Xiang, Y (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China.
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China
2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, China
3.University of Chinese Academy of Sciences, Beijing 100049, China
4.School of Physics and Astronomy, University of St Andrews, Fife KY16 9SS, UK
5.Department of Physical Sciences, The Open University, Walton Hall, Milton Keynes MK7 6AA, UK
6.Department of Physics, College of Science, Guizhou University and NAOC-GZU-Sponsored Center for Astronomy, Guizhou University, Guiyang 550025, China
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Xiang Y,Gu SH,Cameron, A. Collier,et al. The first Doppler images of the eclipsing binary SZ Piscium[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2016,456(1):314-322.
APA Xiang Y,Gu SH,Cameron, A. Collier,Barnes, J. R.,Zhang, Liyun,&Xiang, Y .(2016).The first Doppler images of the eclipsing binary SZ Piscium.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,456(1),314-322.
MLA Xiang Y,et al."The first Doppler images of the eclipsing binary SZ Piscium".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 456.1(2016):314-322.
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