Abstract
The interstellar abundances of D i ,N i, and O i in the local ISM are studied using high-resolution spectra of four hot white dwarfs. The spectra of GD 246, WD 2331� 475, HZ 21, and Lan 23 were obtained with the Far Ultraviolet Spectroscopic Explorer (FUSE) in the wavelength range 905–1187 A ˚ . The line of sight to GD 246 probes the Local Interstellar Cloud and at least one other H i cloud inside the Local Bubble, which contains most of the gas seen along this line of sight. The column densities of Hi ,C ii*, Sii, and Siii are measured using archival Hubble Space Telescope STIS echelle-mode observations. The H i column density is deter... . .. . .. . .. . .. ... ...
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