FUSE Observations of Sirius B

Details FUSE Observations of Sirius B FUSE Observations of Sirius B

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...20510303h&link_type=abstract

American Astronomical Society Meeting 205, #103.03; Bulletin of the American Astronomical Society, Vol. 36, p.1514

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Scientific paper

Observations of the white dwarf Sirius B, obtained in the far ultraviolet with the Far Ultraviolet Spectroscopic Explorer Satellite (FUSE), reveal the Lyman line region of Sirius B free from significant photometric contamination from Sirius A. The FUSE spectra provide a new estimate of the white dwarf gravitational redshift based on the Lyman lines, as well as Lyman line-based determination of the surface gravity, and an estimate of the absolute flux from the white dwarf in the FUV. Sirius B is seen to possess strong quasi-molecular Lyman line features associated with the Lyman Beta and Lyman Gamma lines. No spectroscopic features due to any elements other than hydrogen are found in the Sirius B photosphere.

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