The influence of the Lorentz force on line profiles in early-type magnetic stars

被引：0
|
作者：
Vallverdu, R. E. [1 ]
Cidale, L. S. [1 ]
Rohrmann, R. D. [1 ]
机构：
[1] Natl Univ La Plata, Fac Ciencias Astron Geofis, RA-1900 La Plata, Argentina
来源：
Active OB-Stars: Laboratories for Stellar and Circumstellar Physics, Proceedings | 2007年 / 361卷
关键词：
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We have computed theoretical He I line profiles by means of LTE models for the photosphere of B stars. In these models we have taken into account the effect of the Lorentz force in the equation of hydrostatic equilibrium following the procedure of Valyavin, Kochukhov, & Piskunov (2004). We analyze the influence of a magnetic field on the line profiles. This mechanism can explain the variations in line profile and the stability of the continuum flux of some Hevariable stars. We discuss the determination of abundances in magnetic stars.
引用
收藏
页码：103 / 109
页数：7
相关论文
共 50 条
  • [31] The Origin of the Bimodal Distribution of Magnetic Fields in Early-type Stars
    Jermyn, Adam S.
    Cantiello, Matteo
    ASTROPHYSICAL JOURNAL, 2020, 900 (02):
  • [32] Weak magnetic fields in early-type stars: failed fossils
    Braithwaite, Jonathan
    Cantiello, Matteo
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2013, 428 (04) : 2789 - 2794
  • [33] FOSSIL MAGNETIC-FIELDS AND ROTATION OF EARLY-TYPE STARS
    DUDOROV, AE
    PULSATION, ROTATION AND MASS LOSS IN EARLY-TYPE STARS, 1994, (162): : 184 - 185
  • [34] Evidence for weak magnetic fields in early-type emission stars
    Hubrig, S.
    Yudin, R. V.
    Pogodin, M.
    Scholler, M.
    Peters, G. J.
    ASTRONOMISCHE NACHRICHTEN, 2007, 328 (10) : 1133 - 1136
  • [35] The influence of clumping on the infrared and radio continuum of early-type stars
    Blomme, R
    Runacres, MC
    ASTRONOMY & ASTROPHYSICS, 1997, 323 (03) : 886 - 900
  • [36] RADIO OBSERVATIONS OF 8 EARLY-TYPE EMISSION-LINE STARS
    MARSH, KA
    PURTON, CR
    FELDMAN, PA
    ASTRONOMY & ASTROPHYSICS, 1976, 49 (02) : 211 - 215
  • [37] INTERPRETATION OF THE INTRINSIC POLARIZATIONS OF EARLY-TYPE EMISSION-LINE STARS
    MCLEAN, IS
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1979, 186 (01) : 265 - 285
  • [38] ACCELERATED GAS OUTFLOW IN EARLY-TYPE EMISSION-LINE STARS
    MARSH, KA
    ASTROPHYSICAL JOURNAL, 1976, 203 (02): : 552 - 555
  • [39] PHOTOELECTRIC MEASURES OF HYDROGEN-LINE ABSORPTION IN EARLY-TYPE STARS
    BAPPU, MKV
    CHANDRA, S
    SANWAL, NB
    SINVHAL, SD
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1962, 123 (06) : 521 - 539
  • [40] ISOPHOT observations of early-type stars
    Blomme, R
    Runacres, MC
    Vyverman, K
    Cohen, M
    Leitherer, C
    Owocki, SP
    Haas, M
    ASTROPHYSICS AND SPACE SCIENCE, 1998, 255 (1-2) : 145 - 146
12345