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HL金牛座76

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HL Tau 76
观测资料
历元 J2000.0 (ICRS)
星座 金牛座
星官
赤经 04h 18m 56.46s[1]
赤纬 +27° 17′ 51.4″[1]
视星等(V) 14.1–15.28[2]
特性
光谱分类DAV5[3]
B−V 色指数0.2[1]
变星类型DAV (ZZ Ceti)[2]
天体测定
自行 (μ) 赤经:66[1] mas/yr
赤纬:−72[1] mas/yr
其他命名
EGGR 265, V411 Tau, V411 Tauri, WD 0416+272[1]

HL金牛座76HL Tau 76)是一颗DAV型(或鲸鱼座ZZ型)白矮变星,在1961年G. HaroW. J. Luyten首度观测这颗变星[4][5],并在1968年成为第一颗被确认的白矮星变星Arlo U. Landolt发现它以749.5秒,或是12.5分的周期改变光度[5]。像其它的DAV白矮星,它的变化源自自身的非径向引力波脉动[6], § 7.。稍后的观测和分析,发现它有40种互不相干的变化模式,周期从380秒至1390秒[7]

注解和参考资料

[编辑]
  1. ^ 1.0 1.1 1.2 1.3 1.4 1.5 SIMBAD, accessed June 12, 2007.
  2. ^ 2.0 2.1 Combined General Catalogue of Variable Stars (GCVS), v. 4.2. CDS ID II/250.
  3. ^ A Catalog of Spectroscopically Identified White Dwarfs, George P. McCook and Edward M. Sion, Astrophysical Journal Supplement 121, #1 (March 1999), pp. 1–130. CDS ID III/210.
  4. ^ (西班牙文) Nueva estrella enana blanca en las nubes obscuras del Toro, G. Haro and W. J. Luyten, Bol. Obs. Tonantzintla y Tacubaya 3, 35, no. 21.
  5. ^ 5.0 5.1 A New Short-Period Blue Variable页面存档备份,存于互联网档案馆), Arlo U. Landolt, Astrophysical Journal 153, #1 (July 1968), pp. 151–164.
  6. ^ Physics of white dwarf stars页面存档备份,存于互联网档案馆), D. Koester and G. Chanmugam, Reports on Progress in Physics 53 (1990), pp. 837–915.
  7. ^ Whole Earth telescope observations of the ZZ Ceti star HL Tau 76页面存档备份,存于互联网档案馆), N. Dolez, G. Vauclair, G., S. J. Kleinman, M. Chevreton, J. N. Fu, J.-E. Solheim, J. M. González Perez, A. Ulla, L. Fraga, A. Kanaan, M. Reed, S. Kawaler, M. S. O'Brien, T. S. Metcalfe, R. E. Nather, D. Sanwal, E. W. Klumpe, A. Mukadam, M. A. Wood, T. J. Ahrens, N. Silvestri, D. Sullivan, T. Sullivan, X. J. Jiang, D. W. Xu, B. N. Ashoka, E. Leibowitz, P. Ibbetson, E. Ofek, D. Kilkenny, E. G. Meištas, D. Alisauskas, R. Janulis, R. Kalytis, P. Moskalik, S. Zola, J. Krzesinski, W. Ogloza, G. Handler, R. Silvotti, and S. Bernabei, Astronomy and Astrophysics 446, #1 (January 2006), pp. 237–257.