Phase-resolved Far-Ultraviolet [ITAL]Hubble Space Telescope[/ITAL] Spectroscopy of the Peculiar Magnetic White Dwarf RE J0317−853 | Zendy

M. R. Burleigh | Zendy; S. Jordan | Zendy; Wolfgang Schweizer | Zendy

Open Access

Phase-resolved Far-Ultraviolet [ITAL]Hubble Space Telescope[/ITAL] Spectroscopy of the Peculiar Magnetic White Dwarf RE J0317−853

Author(s) -

M. R. Burleigh,

S. Jordan,

Wolfgang Schweizer

Publication year - 1999

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/311794

Subject(s) - white dwarf , physics , astrophysics , magnetic field , spectroscopy , far ultraviolet , astronomy , hubble space telescope , phase (matter) , spectral line , stars , quantum mechanics

We present phase resolved FUV HST FOS spectra of the rapidly rotating, highlymagnetic white dwarf RE J0317-853. Using these data, we construct a new modelfor the magnetic field morphology across the stellar surface. From an expansioninto spherical harmonics, we find the range of magnetic field strengths presentis 180-800MG. For the first time we could identify an absorption featurepresent at certain phases at 1160A as a ``forbidden'' 1s_0 -> 2s_0 component,due to the combined presence of an electric and magnetic field.Comment: 15 pages including 4 figures. Accepted for publication in ApJ Letter

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