罗斯 548是一种会变的白矮星,属于DAV类型,它在1970年被发现是一颗变星[4],在1972年,它的变星标识为鲸鱼座ZZ (Ceti ZZ)[5],其中还提到鲸鱼座ZZ是完全型态的DAV白矮星变星 [6], pp. 891, 895.

罗斯548
观测资料
历元 J2000.0 (ICRS)
星座 鲸鱼座
星官
赤经 01h 36m 13.60s[1]
赤纬 -11° 20′ 32.2″[1]
视星等(V) 14.1[1]
特性
光谱分类DAV4[2]
U−B 色指数-0.5[2]
B−V 色指数0.2[2]
变星类型DAV (ZZ Ceti)[2]
天体测定
自行 (μ) 赤经:454[1] mas/yr
赤纬:-120[1] mas/yr
视差 (π)13 ± 2[3] mas
距离approx. 250 ly
(approx. 80 pc)
其他命名
ZZ Ceti, ZZ Cet, EGGR 10, G 271-106, G 272-52, LTT 873, NLTT 5358, WD 0133-116

相关条目

编辑

参考资料

编辑
  1. ^ 1.0 1.1 1.2 1.3 1.4 Improved Astrometry and Photometry for the Luyten Catalog. II. Faint Stars and the Revised Catalog, Samir Salim and Andrew Gould, Astrophysical Journal 582, #2 (January 2003), pp. 1011–1031; CDS ID J/ApJ/582/1011.
  2. ^ 2.0 2.1 2.2 2.3 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.
  3. ^ Table 1, Summary of U.S. Naval Observatory parallaxes, R. S. Harrington and C. C. Dahn, Astronomical Journal 85 (April 1980), pp. 454–465.
  4. ^ High-Frequency Stellar Oscillations. VI. R548, a Periodically Variable White Dwarf, Barry M. Lasker and James E. Hesser, Astrophysical Journal 163 (February 1971), pp. L89–L93.
  5. ^ 58th Name-List of Variable Stars, B. V. Kukarkin, P. N. Kholopov, N. P. Kukarkina, N. B. Perova, Information Bulletin on Variable Stars, #717, September 21, 1972.
  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.