Phase-resolved far-ultraviolet Hubble Space Telescope spectroscopy of the peculiar magnetic white dwarf RE J0317-853

被引：54

作者：

Burleigh, FR

Jordan, S

Schweizer, W

机构：

[1] Univ Leicester, Dept Phys & Astron, Leicester LE1 7RH, Leics, England

[2] Univ Kiel, Inst Astron & Astrophys, D-24098 Kiel, Germany

[3] Inst Astron & Astrophys, D-72076 Tubingen, Germany

来源：

ASTROPHYSICAL JOURNAL | 1999年 / 510卷 / 01期

关键词：

stars : magnetic fields; ultraviolet : stars; white dwarfs;

D O I：

10.1086/311794

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present phase-resolved, far-UV Hubble Space Telescope Faint Object Spectrograph spectra of the rapidly rotating, highly magnetic white dwarf RE J0317-853. Using these data, we construct a new model for the magnetic field morphology across the stellar surface. From an expansion into spherical harmonics, we find that the range of magnetic field strengths present is 180-800 MG. For the first time, we could identify an absorption feature present at certain phases at approximate to 1160 Angstrom as a "forbidden" 1s(0) --> 2s(0) component, because of the combined presence of an electric and magnetic field.

引用

页码：L37 / L40

页数：4

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