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[77.04] Deuterium, Nitrogen, and Oxygen abundances toward WD0004+330: Results from the FUSE mission.

C. M. Oliveira (JHU), G. Hebrard (Inst. d'Astrophysique de Paris), S. D. Friedman (STScI), H. W. Moos (JHU)

We present new high-resolution spectra of the hot DA white dwarf WD0004+330 obtained with the Far Ultraviolet Spectroscopic Explorer (FUSE) in the wavelength range 905-1187A, for the purpose of studying the deuterium abundance of the local interstellar medium.

The effective temperature and gravity of this star (Teff~46,000K and log(g)~7.83) provide a smooth stellar continuum against which the interstellar lines are cleanly seen. Molecular hydrogen, corresponding to rotational levels J<4 are clearly seen along this line of sight.

We determine column densities of D I, C II*, N I, O I, Si II, P II, Ar I, and Fe II, and compare D/O, D/N, and O/N values with previously published values for the local interstellar medium.

This work is based on data obtained for the Guaranteed Time Team by the NASA-CNES-CSA FUSE mission operated by the Johns Hopkins University. Financial support to U. S. participants has been provided by NASA contract NAS5-32985.

The author(s) of this abstract have provided an email address for comments about the abstract: oliveira@pha.jhu.edu

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Bulletin of the American Astronomical Society, 34, #4
© 2002. The American Astronomical Soceity.