中大機構典藏-NCU Institutional Repository-提供博碩士論文、考古題、期刊論文、研究計畫等下載:Item 987654321/50926
English  |  正體中文  |  简体中文  |  全文笔数/总笔数 : 78818/78818 (100%)
造访人次 : 34704529      在线人数 : 891
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
搜寻范围 查询小技巧:
  • 您可在西文检索词汇前后加上"双引号",以获取较精准的检索结果
  • 若欲以作者姓名搜寻,建议至进阶搜寻限定作者字段,可获得较完整数据
  • 进阶搜寻


    jsp.display-item.identifier=請使用永久網址來引用或連結此文件: http://ir.lib.ncu.edu.tw/handle/987654321/50926


    题名: The pulsations of PG 1351+489
    作者: Redaelli,M;Kepler,SO;Costa,JES;Winget,DE;Handler,G;Castanheira,BG;Kanaan,A;Fraga,L;Henrique,P;Giovannini,O;Provencal,JL;Shipman,HL;Dalessio,J;Thompson,SE;Mullally,F;Brewer,MM;Childers,D;Oksala,ME;Rosen,R;Wood,MA;Reed,MD;Walter,B;Strickland,W;Chandler,D;Watson,TK;Nather,RE;Montgomery,MH;Bischoff-Kim,A;Hansen,CJ;Nitta,A;Kleinman,SJ;Claver,CF;Brown,TM;Sullivan,DJ;Kim,SL;Chen,WP;Yang,M;Shih,CY;Zhang,X;Jiang,X;Fu,JN;Seetha,S;Ashoka,BN;Marar,TMK;Baliyan,KS;Vats,HO;Chernyshev,AV;Ibbetson,P;Leibowitz,E;Hemar,S;Sergeev,AV;Andreev,MV;Janulis,R;Meistas,EG;Moskalik,P;Pajdosz,G;Baran,A;Winiarski,M;Zola,S;Ogloza,W;Siwak,M;Bognar,Z;Solheim,JE;Sefako,R;Buckley,D;Donoghue,D;Nagel,T;Silvotti,R;Bruni,I;Fremy,JR;Vauclair,G;Chevreton,M;Dolez,N;Pfeiffer,B;Barstow,MA;Creevey,OL;Kawaler,SD;Clemens,JC
    贡献者: 天文研究所
    关键词: WHITE-DWARF STARS;WHOLE EARTH TELESCOPE;TIME-SERIES ANALYSIS;PERIOD CHANGE;EVOLUTION;PG-1351+489;GD-358;GD358
    日期: 2011
    上传时间: 2012-03-27 18:13:03 (UTC+8)
    出版者: 國立中央大學
    摘要: PG 1351+489 is one of the 20 DBVs - pulsating helium-atmosphere white dwarf stars - known and has the simplest power spectrum for this class of star, making it a good candidate to study cooling rates. We report accurate period determinations for the main peak at 489.334 48 s and two other normal modes using data from the Whole Earth Telescope (WET) observations of 1995 and 2009. In 2009, we detected a new pulsation mode and the main pulsation mode exhibited substantial change in its amplitude compared to all previous observations. We were able to estimate the star's rotation period, of 8.9 h, and discuss a possible determination of the rate of period change of (2.0 +/- 0.9) x 10(-13) s s(-1), the first such estimate for a DBV.
    關聯: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
    显示于类别:[天文研究所] 期刊論文

    文件中的档案:

    档案 描述 大小格式浏览次数
    index.html0KbHTML579检视/开启


    在NCUIR中所有的数据项都受到原著作权保护.

    社群 sharing

    ::: Copyright National Central University. | 國立中央大學圖書館版權所有 | 收藏本站 | 設為首頁 | 最佳瀏覽畫面: 1024*768 | 建站日期:8-24-2009 :::
    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - 隱私權政策聲明