English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 80990/80990 (100%)
造訪人次 : 42772333      線上人數 : 1190
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
搜尋範圍 查詢小技巧:
  • 您可在西文檢索詞彙前後加上"雙引號",以獲取較精準的檢索結果
  • 若欲以作者姓名搜尋,建議至進階搜尋限定作者欄位,可獲得較完整資料
  • 進階搜尋


    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


    題名: 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
    貢獻者: 天文研究所
    關鍵詞: WHITE-DWARF STARS;WHOLE EARTH TELESCOPE;TIME-SERIES ANALYSIS;PERIOD CHANGE;EVOLUTION;PG-1351+489;GD-358;GD358
    日期: 2011
    上傳時間: 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
    顯示於類別:[天文研究所] 期刊論文

    文件中的檔案:

    檔案 描述 大小格式瀏覽次數
    index.html0KbHTML562檢視/開啟


    在NCUIR中所有的資料項目都受到原著作權保護.

    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