Interstellar Abundances from Absorption-Line Observations with the Hubble Space Telescope
B. D. Savage, K. R. Sembach;
ARAA, 1996, 34, 279
ABSTRACT:The Goddard High-Resolution Spectrograph (GHRS) aboard the Hubble Space Telescope (HST) has yielded precision abundance results for a range of
interstellar environments, including gas in the local medium, in the warm neutral
medium, in cold diffuse clouds, and in distant halo clouds.
Through GHRS
studies, investigators have determined the abundances of elements such as C, N,
0, Mg, Si, S, and Fe in individual interstellar clouds.
These studies
have provided new information about the composition of interstellar dust
gains, the origin of the Galactic high-velocity cloud system, and the
processes that transport gas between the disk and the halo.
Precision
measurements of the interstellar D to H ratio and of the abundances of r- and s-process
elements have also provided fiducial reference values for cosmological and
stellar evolutionary observations and theoretical models.
CODE: savage96