Observations of magnetic hydrogen lines in the white dwarf GD 229

Details Observations of magnetic hydrogen lines in the white dwarf GD 229 Observations of magnetic hydrogen lines in the white dwarf GD 229

Feb 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...173l..15o&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 173, no. 2, Feb. 1987, p. L15-L17. DFG-supported research.

Astronomy and Astrophysics

Astrophysics

10

Circular Polarization, H Lines, Stellar Magnetic Fields, Stellar Spectrophotometry, White Dwarf Stars, Radiant Flux Density, Zeeman Effect

Scientific paper

Features in the circular polarization spectrum of the magnetic degenerate GD 229 were observed. One of the major features coincides with the λ 4185 unidentified flux feature and another is within the broad unidentified flux feature at λ 5295. The λ 4185 as well as a marginal feature at λ 4880 are explainable by stationary Hγ and Hβ transitions, respectively, in a magnetic field of about 25-60 MG. A tentative identification of the λ 5295 feature at this field strength is presented in terms of intersecting Balmer α and β transitions.

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