Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aas...197.3607f&link_type=abstract
American Astronomical Society, 197th AAS Meeting, #36.07; Bulletin of the American Astronomical Society, Vol. 32, p.1450
Astronomy and Astrophysics
Astronomy
Scientific paper
We present measurements of neutral deuterium, oxygen, and nitrogen in the local interstellar medium along the sightline toward Feige 110, a subdwarf OB star at a distance of 180 pc in the direction l = 74.09 deg, b = -59.07 deg. The data were obtained with the Far Ultraviolet Spectroscopic Explorer (FUSE) satellite, and cover the 910-1185A bandpass at high resolution (< 20 km/sec). The complex spectrum exhibits many stellar features, including broad photospheric Lyman H I, He II and heavy metal absorption . A stellar model has been constructed which accounts for the H I and He II and some metal lines, and serves to improve estimates of the continuum near interstellar absorption lines. We report values of D/O and D/N and, using an H I column density derived from both the FUSE spectra and IUE measurements of the Ly alpha profile, a D/H value. This work is based on data obtained for the FUSE Guaranteed Time Team by the NASA-CNES-CSA FUSE mission operated for NASA by The Johns Hopkins University. Financial support to U. S. participants has been provided by NASA contract NAS5-32985.
André Martial
Chayer Pierre
Friedman Scott David
FUSE Science Team
Hebrard Guillaume
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