Ultraviolet absorption by interstellar gas near 30 Doradus

Details Ultraviolet absorption by interstellar gas near 30 Doradus Ultraviolet absorption by interstellar gas near 30 Doradus

Mar 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...236..769d&link_type=abstract

Astrophysical Journal, Part 1, vol. 236, Mar. 15, 1980, p. 769-778. Research supported by the Wisconsin Alumni Research Foundat

Astronomy and Astrophysics

Astrophysics

63

Interstellar Gas, Magellanic Clouds, Nebulae, Stellar Spectra, Ultraviolet Absorption, Abundance, Early Stars, Far Ultraviolet Radiation, H Ii Regions, Hydrogen, Iue, Radial Velocity, Ultraviolet Spectra

Scientific paper

The IUE was used to obtain high-resolution far-UV spectra (1150-2070 A) of two stars in the 30 Dor H II region in the LMC. Interstellar absorption components are distinguished at +20, +220, +250, and +290 km/s. The +20 km/s component is produced by matter in the Galaxy; the high-velocity components are produced by absorbing gas near or in the LMC. A model of the line-of-sight distribution of the absorbing clouds is developed from the velocity pattern of the observed LMC features. The presence of Si IV, Al III, and C IV ions is discussed.

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