Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...308..232e&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 308, Sept. 1, 1986, p. 232-239.
Astronomy and Astrophysics
Astrophysics
1
Abundance, Interstellar Matter, Oao 3, Ultraviolet Spectra, Absorption Spectra, H Ii Regions, Ionization, Line Of Sight, Line Spectra, Stellar Composition
Scientific paper
Profile fitting of Copernicus UV absorption lines separates out four components in the line of sight to Upsilon Sco. Velocities for three of the components, including the two components associated with major H I and H II regions, are in excellent agreement with the corresponding components in the nearby line of sight to Lambda Sco. The velocity of the remaining component is between the velocities of the two remaining Lambda Sco components. Column densities of the various ionization stages of C, N, Si, S, and Ar in the major H I and H II regions are in reasonable agreement with those determined from the Lambda Sco observations, with four notable exceptions. In Upsilon Sco there is more N II and substantially less S III in the H I component and significantly less N I and Si III in the H II component.
Eder D. C.
York Don G.
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