NAOC Open IR  > 光学天文研究部
High-resolution spectroscopy of the extremely iron-poor post-AGB star CCLyr
Aoki, Wako1,2; Matsuno, Tadafumi1,2; Honda, Satoshi3; Parthasarathy, Mudumba4; Li, Haining5; Suda, Takuma6
2017-04-01
发表期刊PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
卷号69期号:2
摘要High-resolution optical spectroscopy was conducted for the metal-poor post-AGB star CC Lyr to determine its chemical abundances and spectral line profiles. Our standard abundance analysis confirms its extremely low metallicity ([Fe/H] < -3.5) and a clear correlation between abundance ratios and the condensation temperature for 11 elements, indicating that dust depletion is the cause of the abundance anomaly of this object. The very low abundances of Sr and Ba, which are detected for the first time for this object, suggest that heavy neutron-capture elements are not significantly enhanced in this object by the s-process during its evolution through the AGB phase. The radial velocity of this object and profiles of some atomic absorption lines show variations depending on pulsation phases, which could be formed by dynamics of the atmosphere rather than by binarity or contributions of circumstellar absorption. On the other hand, the Ha emission with double peaks shows no evident velocity shift, suggesting that the emission is originating from the circumstellar matter, presumably the rotating disk around the object.
文章类型Article
关键词Circumstellar Matter Stars: Abundances Stars: Agb And post-Agb Stars: Individual (Cc Lyr)
WOS标题词Science & Technology ; Physical Sciences
资助者JSPS KAKENHI(JP16H02168) ; JSPS KAKENHI(JP16H02168) ; NAOJ Visiting Fellow Program of the Research Coordination Committee, National Astronomical Observatory of Japan (NAOJ), National Institutes of Natural Sciences (NINS) ; NAOJ Visiting Fellow Program of the Research Coordination Committee, National Astronomical Observatory of Japan (NAOJ), National Institutes of Natural Sciences (NINS) ; JSPS KAKENHI(JP16H02168) ; JSPS KAKENHI(JP16H02168) ; NAOJ Visiting Fellow Program of the Research Coordination Committee, National Astronomical Observatory of Japan (NAOJ), National Institutes of Natural Sciences (NINS) ; NAOJ Visiting Fellow Program of the Research Coordination Committee, National Astronomical Observatory of Japan (NAOJ), National Institutes of Natural Sciences (NINS)
DOI10.1093/pasj/psw125
关键词[WOS]II CEPHEIDS ; CHEMICAL-COMPOSITION ; LOW-MASS ; LAMOST ; ATMOSPHERES ; TELESCOPE ; SCENARIO ; MYSTERY ; CLOUD
收录类别SCI
语种英语
资助者JSPS KAKENHI(JP16H02168) ; JSPS KAKENHI(JP16H02168) ; NAOJ Visiting Fellow Program of the Research Coordination Committee, National Astronomical Observatory of Japan (NAOJ), National Institutes of Natural Sciences (NINS) ; NAOJ Visiting Fellow Program of the Research Coordination Committee, National Astronomical Observatory of Japan (NAOJ), National Institutes of Natural Sciences (NINS) ; JSPS KAKENHI(JP16H02168) ; JSPS KAKENHI(JP16H02168) ; NAOJ Visiting Fellow Program of the Research Coordination Committee, National Astronomical Observatory of Japan (NAOJ), National Institutes of Natural Sciences (NINS) ; NAOJ Visiting Fellow Program of the Research Coordination Committee, National Astronomical Observatory of Japan (NAOJ), National Institutes of Natural Sciences (NINS)
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000401118500007
引用统计
文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/8781
专题光学天文研究部
作者单位1.Natl Astron Observ Japan, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan
2.Grad Univ Adv Studies SOKENDAI, Sch Phys Sci, Dept Astron Sci, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan
3.Univ Hyogo, Ctr Astron, 407-2 Nishigaichi,Sayo Cho, Sayo, Hyogo 6795313, Japan
4.Indian Inst Astrophys, 2 Block, Bangalore 560034, Karnataka, India
5.Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, A20 Datun Rd, Beijing 100012, Peoples R China
6.Univ Tokyo, Res Ctr Early Universe, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan
推荐引用方式
GB/T 7714
Aoki, Wako,Matsuno, Tadafumi,Honda, Satoshi,et al. High-resolution spectroscopy of the extremely iron-poor post-AGB star CCLyr[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,2017,69(2).
APA Aoki, Wako,Matsuno, Tadafumi,Honda, Satoshi,Parthasarathy, Mudumba,Li, Haining,&Suda, Takuma.(2017).High-resolution spectroscopy of the extremely iron-poor post-AGB star CCLyr.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,69(2).
MLA Aoki, Wako,et al."High-resolution spectroscopy of the extremely iron-poor post-AGB star CCLyr".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 69.2(2017).
条目包含的文件
条目无相关文件。
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
[Aoki, Wako]的文章
[Matsuno, Tadafumi]的文章
[Honda, Satoshi]的文章
百度学术
百度学术中相似的文章
[Aoki, Wako]的文章
[Matsuno, Tadafumi]的文章
[Honda, Satoshi]的文章
必应学术
必应学术中相似的文章
[Aoki, Wako]的文章
[Matsuno, Tadafumi]的文章
[Honda, Satoshi]的文章
相关权益政策
暂无数据
收藏/分享
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。