Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983mnras.202..483p&link_type=abstract
Monthly Notices of the Royal Astronomical Society, vol. 202, Feb. 1983, p. 483-493.
Astronomy and Astrophysics
Astronomy
28
Absorption Spectra, Interstellar Gas, Line Spectra, Stellar Spectra, Supernova Remnants, Ultraviolet Astronomy, Carbon Monoxide, Electron Density (Concentration), Heavy Elements, Iue, Molecular Gases, Red Shift, Spectral Bands, Spectrum Analysis, Stellar Spectrophotometry, Ultraviolet Spectra
Scientific paper
The IUE satellite was used to obtain high-resolution ultraviolet observations of the star HD 37318 (B0.5Ve) which lies behind the supernova remnant S 147. High-velocity interstellar absorption lines (>VLSR< ≅ + 80 km s-1) were detected which originate in gas associated with the remnant. These lines have been analysed to estimate chemical and physical conditions in the section of S 147 sampled by the present observations. Relatively high electron densities are indicated in the high-veloicity gas toward HD 37318, suggesting a shocked interstellar cloud in the line-of-sight. The supernova remnant is evidently expanding into an inhomogeneous interstellar medium. Low-velocity interstellar CO absorption bands were detected in the ultraviolet spectrum of HD 37318. This indicates that the molecular gas is situated in the vicinity of the remnant.
Gondhalekar P. M.
Phillips Paul A.
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