Variations of the Ap star HD 208217

被引:0
|
作者
Manfroid, J [1 ]
Mathys, G [1 ]
机构
[1] EUROPEAN SO OBSERV, SANTIAGO 19, CHILE
关键词
stars: chemically peculiar; stars: individual: HD 208217; stars: rotation;
D O I
暂无
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present a new determination of the rotation period of the Ap star HD 208217 based on photometric and magnetic measurements. The variations of this star are remarkable by the strong anharmonicity of its lightcurves in all colours as well as by the double wave of its mean magnetic field modulus variations.
引用
收藏
页码:497 / 499
页数:3
相关论文
共 50 条
  • [41] A radial-velocity survey of Ap stars with HARPS I. HD 42659: The discovery of the first spectroscopic binary around a rapidly oscillating Ap star
    Hartmann, M.
    Hatzes, A. P.
    ASTRONOMY & ASTROPHYSICS, 2015, 582
  • [42] Discovery of very low amplitude 9-minute multiperiodic pulsations in the magnetic Ap star HD75445
    Kochukhov, O.
    Bagnulo, S.
    Lo Curto, G.
    Ryabchikova, T.
    ASTRONOMY & ASTROPHYSICS, 2009, 493 (03): : L45 - L48
  • [43] Magnetic Stars with Wide Depressions in the Continuum. 1. The Ap Star with Strong Silicon Lines HD 5601
    Romanyuk, I. I.
    Kudryavtsev, D. O.
    Semenko, E. A.
    Moiseeva, A. V.
    ASTROPHYSICAL BULLETIN, 2016, 71 (04) : 447 - 452
  • [44] Low-amplitude variations detected by CoRoT in the B8IIIe star HD 175869
    Gutierrez-Soto, J.
    Floquet, M.
    Samadi, R.
    Neiner, C.
    Garrido, R.
    Fabregat, J.
    Fremat, Y.
    Diago, P. D.
    Huat, A. -L.
    Leroy, B.
    Emilio, M.
    Hubert, A. -M.
    Thizy, O.
    Andrade, L.
    de Batz, B.
    Janot-Pacheco, E.
    Lara, F. Espinosa
    Martayan, C.
    Semaan, T.
    Suso, J.
    Auvergne, M.
    Chaintreuil, S.
    Michel, E.
    Catala, C.
    ASTRONOMY & ASTROPHYSICS, 2009, 506 (01) : 133 - 141
  • [45] Suppressed phase variations in a high amplitude rapidly oscillating Ap star pulsating in a distorted quadrupole mode
    Holdsworth, Daniel L.
    Saio, H.
    Bowman, D. M.
    Kurtz, D. W.
    Sefako, R. R.
    Joyce, M.
    Lambert, T.
    Smalley, B.
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2018, 476 (01) : 601 - 616
  • [46] The Ap spectroscopic binary HD 59435 revisited
    Wade, GA
    Mathys, G
    North, P
    ASTRONOMY & ASTROPHYSICS, 1999, 347 (01) : 164 - 168
  • [47] Magnetic and pulsational variability of Przybylski's star (HD 101065)
    Hubrig, S.
    Jaervinen, S. P.
    Madej, J.
    Bychkov, V. D.
    Ilyin, I.
    Schoeller, M.
    Bychkova, L. V.
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2018, 477 (03) : 3791 - 3800
  • [48] The discovery of rapid oscillations in the magnetic Ap stars HD 69013 and HD 96237☆
    Elkin, V. G.
    Kurtz, D. W.
    Worters, H. L.
    Mathys, G.
    Smalley, B.
    van Wyk, F.
    Smith, A. M. S.
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2011, 411 (02) : 978 - 982
  • [49] The pulsating λ Bootis star HD 105759
    Martinez, P
    Koen, C
    Handler, G
    Paunzen, E
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1998, 301 (04) : 1099 - 1103
  • [50] HD 60435: the star that stopped pulsating
    Kurtz, Donald W.
    Handler, Gerald
    Holdsworth, Daniel L.
    Cunha, Margarida S.
    Saio, Hideyuki
    Medupe, Thebe
    Murphy, Simon J.
    Kruger, Joachim
    Brunsden, E.
    Antoci, Victoria
    Hey, Daniel R.
    Shitrit, Noi
    Matthews, Jaymie M.
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2024, 536 (03) : 2103 - 2126