Deuterium Toward WD2211-495: First FUSE results

Details Deuterium Toward WD2211-495: First FUSE results Deuterium Toward WD2211-495: First FUSE results

Dec 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aas...197.3604h&link_type=abstract

American Astronomical Society, 197th AAS Meeting, #36.04; Bulletin of the American Astronomical Society, Vol. 32, p.1449

Astronomy and Astrophysics

Astronomy

Scientific paper

We present a deuterium abundance analysis of the 905-1187 Å spectrum of the line of sight toward the white dwarf WD2211-495 obtained by the Far Ultraviolet Spectroscopic Explorer (FUSE). Numerous interstellar lines are detected on the continuum of the stellar spectrum. A thorough analysis was performed through the simultaneous fit of interstellar absorption lines detected in the four channels (LiF1, SiC1, LiF2 and SiC2) and obtained through the three apertures (LWRS, MDRS and HIRS). The fit includes the following species: D i, O i, N i, Fe ii, Si ii and P ii. We excluded all saturated lines in order to reduce possible systematic errors on the column density measurements. We report an accurate determination of the average interstellar D/O and D/N ratios along this line of sight. 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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