中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 云南天文台
  3. 中国科学院云南天文台
  4. 系外行星研究组
Further Investigation on Chromospheric Activity Patterns of the RS Canum Venaticorum Star V711 Tauri

文献类型：期刊论文

作者Cao DT(曹东涛)2,3,4; Gu SH(顾盛宏)1,3,4
刊名ASTRONOMICAL JOURNAL
出版日期2025-04-01
卷号169期号:4
ISSN号0004-6256
DOI10.3847/1538-3881/adb5fe
产权排序第1完成单位
文献子类Article
英文摘要We present new long-term spectroscopic observations of the very active RS Canum Venaticorum (RS CVn) star V711 Tauri (V711 Tau), obtained during several observing runs from 2005 to 2021. By means of the spectral-subtraction technique, several optical chromospheric activity indicators Ca ii infrared triplet, H alpha, Na i D1, D2 doublet, He i D3, and H beta lines, are analyzed. V711 Tau shows strong excess emission in the chromospheric activity lines, and the emission is mainly associated with the K1 IV primary component. The G5 V secondary component also shows weak emission features. There are four optical flare events during our observations, characterized by the He i D3 line emission features and stronger emission in other activity lines, which have similar order of magnitude as the strong flares of other active RS CVn-type stars. We separate our long-term observations to twelve observing groups, and find that V711 Tau has two active longitudes around phases 0.25 and 0.75 to dominate the activity in most of time. The chromospheric activity level shows a long-term variation, indicating possible chromospheric activity cycle. Moreover, a close spatial connection between photospheric spots and chromospheric active regions in short and long timescale is found for V711 Tau.
学科主题天文学 ; 恒星与银河系
URL标识查看原文
出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
WOS关键词MULTIWAVELENGTH OPTICAL OBSERVATIONS ; BINARY HR-1099 V711-TAU ; SIMULTANEOUS H ALPHA ; ROTATIONAL MODULATION ; DIFFERENTIAL ROTATION ; PROMINENCE ACTIVITY ; LAMBDA-ANDROMEDAE ; MAGNETIC CYCLES ; II-PEGASI ; LQ-HYDRAE
资助项目MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809; Open Project Program of the CAS Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences; Chinese Academy of Sciences; People's Government of Yunnan Province[10373023]; People's Government of Yunnan Province[10773027]; People's Government of Yunnan Province[U1531121]; People's Government of Yunnan Province[11903074]; National Natural Science Foundation of China (NSFC)[202201AT070186]; National Natural Science Foundation of China (NSFC)[202305AS350009]; Yunnan Fundamental Research Projects; Yunnan Revitalization Talent Support Program (Young Talent Project)[202302AN360001]; International Centre of Supernovae, Yunnan Key Laboratory; China Manned Space Project
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001441246800001
出版者IOP Publishing Ltd
资助机构MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809 ; Open Project Program of the CAS Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Chinese Academy of Sciences ; People's Government of Yunnan Province[10373023, 10773027, U1531121, 11903074] ; National Natural Science Foundation of China (NSFC)[202201AT070186, 202305AS350009] ; Yunnan Fundamental Research Projects ; Yunnan Revitalization Talent Support Program (Young Talent Project)[202302AN360001] ; International Centre of Supernovae, Yunnan Key Laboratory ; China Manned Space Project
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/28192]  
专题云南天文台_系外行星研究组
云南天文台_中国科学院天体结构与演化重点实验室
作者单位1.School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 101408, People's Republic of China
2.International Centre of Supernovae, Yunnan Key Laboratory, Kunming 650216, People's Republic of China;
3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, People's Republic of China;
4.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, People's Republic of China; dtcao@ynao.ac.cn, shenghonggu@ynao.ac.cn;
推荐引用方式
GB/T 7714		 Cao DT,Gu SH. Further Investigation on Chromospheric Activity Patterns of the RS Canum Venaticorum Star V711 Tauri[J]. ASTRONOMICAL JOURNAL,2025,169(4).
APA 曹东涛,&顾盛宏.(2025).Further Investigation on Chromospheric Activity Patterns of the RS Canum Venaticorum Star V711 Tauri.ASTRONOMICAL JOURNAL,169(4).
MLA 曹东涛,et al."Further Investigation on Chromospheric Activity Patterns of the RS Canum Venaticorum Star V711 Tauri".ASTRONOMICAL JOURNAL 169.4(2025).

入库方式： OAI收割

来源：云南天文台

浏览0
下载0
收藏0
其他版本

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。