STIS and FUSE Observations of the LMC Star HD 269676

Astronomy and Astrophysics – Astronomy

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Scientific paper

We present Space Telescope Imaging Spectrograph (STIS) and Far Ultraviolet Spectroscopic Explorer (FUSE) observations of the interstellar absorption along the sight line toward the bright LMC star HD 269676 (Sk -71 45, R113), which is located approximately 2 degrees South of 30 Doradus. Absorption due to multiple interstellar features is detected in the LMC as well as the Galactic disk and halo -- including numerous lines of species arising primarily in neutral gas (such as C I, O I, Ar I, Si II, P II, S II, Fe II, and Ni II as well as H2), as well as lines which sample highly ionized gas (such as C IV, O VI and Si IV). By combining these STIS E140M (1150--1730 Angstroms) and FUSE (900--1187 Angstrom) spectra with high resolution ground-based (AAT and ESO) observations of Na I and archival IUE observations of this star, we explore the physical conditions in the multiple interstellar clouds along this line-of-sight.

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