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

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

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...201.7704o&link_type=abstract

American Astronomical Society, 201st AAS Meeting, #77.04; Bulletin of the American Astronomical Society, Vol. 34, p.1229

Astronomy and Astrophysics

Astronomy

Scientific paper

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.

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