Ultraviolet studies of the interstellar gas in the direction of the stars AE AUR (O9.5V) and Theta-2 ORI A (O9.0V)

Details Ultraviolet studies of the interstellar gas in the direction of the stars AE AUR (O9.5V) and Theta-2 ORI A (O9.0V) Ultraviolet studies of the interstellar gas in the direction of the stars AE AUR (O9.5V) and Theta-2 ORI A (O9.0V)

Jan 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989ap%26ss.151..227a&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 151, no. 2, Jan. 1989, p. 227-234.

Astronomy and Astrophysics

Astrophysics

1

Interstellar Gas, Iue, Ultraviolet Spectra, Absorption Spectra, Aluminum, Carbon, Iron, Nickel, Silicon, Sulfur, Zinc

Scientific paper

High-resolution IUE spectra were analyzed in order to study the UV interstellar absorption lines, and to compare the differences between interstellar column densities, in the line of sight to AE Aur (O9.5V) and Theta-2 Ori A (O9.0V). The velocities and equivalent widths of the UV interstellar absorption lines of C II, excited C II, Al II, Si II, excited Si II, Cr II, Fe II, Ni II, and Zn II are presented. It is found that these ions could be fit on one empirical curve of growth with a velocity parameter of 13 km/s for the case of both stars.

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