YNAO OpenIR  > 系外行星研究组
CHROMOSPHERIC ACTIVITY AND ROTATIONAL MODULATION ON THE YOUNG, SINGLE K2 DWARF LQ Hya
Cao DT(曹东涛)1,2; Gu SH(顾盛宏)1,2; Cao, DT (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China.
发表期刊ASTRONOMICAL JOURNAL
2014-02
卷号147期号:2
DOI10.1088/0004-6256/147/2/38
产权排序第1完成单位
收录类别SCI
关键词Stars: Activity Stars: Chromospheres Stars: Individual (Lq Hya) Stars: Rotation
摘要High-resolution echelle spectra of LQ Hya, obtained during several observing runs from 2006 to 2012, have been analyzed to study its chromospheric activity. Using the spectral subtraction technique, we derived information about chromospheric activity of LQ Hya from several optical chromospheric activity indicators (including the H-beta, He I D-3, Na I D-1, D-2, H alpha, and Ca II infrared triplet (IRT) lines). No optical flares were found during our observations. The equivalent widths (EWs) of the excess emissions in the chromospheric activity lines have been measured. The ratios of EW8542/EW8498 are generally small, which indicates that the Ca II IRT emission arises from plage-like regions, while the EH alpha/EH beta values suggest that the emission of the Balmer lines is due to both plage and prominence structures for the observations in 2012. We find that clear rotational modulation of chromospheric emission exists, which suggests the presence and change of chromospheric active regions over the surface of LQ Hya. Moreover, the active regions were associated with the photospheric spots in spatial structure.
项目资助者NSFC [10373023, 10773027, 11333006] ; Chinese Academy of Sciences [KJCX2-YW-T24]
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0004-6256
URL查看原文
归档日期2014-01-16
WOS记录号WOS:000329837100014
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]MULTIWAVELENGTH OPTICAL OBSERVATIONS ; STELLAR SURFACE-STRUCTURE ; RS-CANUM-VENATICORUM ; H-ALPHA EMISSION ; BINARY-SYSTEMS ; PHYSICAL-PROPERTIES ; CLOSE BINARIES ; LINE-PROFILES ; AB-DORADUS ; HYDRAE
引用统计
被引频次:7[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/114a53/6803
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Cao, DT (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
推荐引用方式
GB/T 7714
Cao DT,Gu SH,Cao, DT . CHROMOSPHERIC ACTIVITY AND ROTATIONAL MODULATION ON THE YOUNG, SINGLE K2 DWARF LQ Hya[J]. ASTRONOMICAL JOURNAL,2014,147(2).
APA Cao DT,Gu SH,&Cao, DT .(2014).CHROMOSPHERIC ACTIVITY AND ROTATIONAL MODULATION ON THE YOUNG, SINGLE K2 DWARF LQ Hya.ASTRONOMICAL JOURNAL,147(2).
MLA Cao DT,et al."CHROMOSPHERIC ACTIVITY AND ROTATIONAL MODULATION ON THE YOUNG, SINGLE K2 DWARF LQ Hya".ASTRONOMICAL JOURNAL 147.2(2014).
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
CHROMOSPHERIC ACTIVI(2273KB)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
[Cao DT(曹东涛)]的文章
[Gu SH(顾盛宏)]的文章
[Cao, DT (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China.]的文章
百度学术
百度学术中相似的文章
[Cao DT(曹东涛)]的文章
[Gu SH(顾盛宏)]的文章
[Cao, DT (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China.]的文章
必应学术
必应学术中相似的文章
[Cao DT(曹东涛)]的文章
[Gu SH(顾盛宏)]的文章
[Cao, DT (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China.]的文章
相关权益政策
暂无数据
收藏/分享
文件名: CHROMOSPHERIC ACTIVITY AND ROTATIONAL MODULATION ON THE YOUNG, SINGLE K2 DWARF LQ Hya.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。