Hyper ionization phenomena in the N IV region of 20 Oe stars

Details Hyper ionization phenomena in the N IV region of 20 Oe stars Hyper ionization phenomena in the N IV region of 20 Oe stars

Jul 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007uasb.conf..149a&link_type=abstract

UV Astronomy: Stars from Birth to Death. Proceedings of the Joint Discussion n.4 during the IAU general Assembly of 2006. Ana I.

Astronomy and Astrophysics

Astronomy

Oe Stars, N Iv, Dacs, Sacs, Gaussian Contribution, Random Velocities, Fwhm.

Scientific paper

Spectral lines of Oe and Be stars present DACs or SACs. In this paper we study the N IV line (λ 1718.8 °A) of a sample of 20 Oe stars (from O4 to O7 spectral subtype). We did a multicomponent decomposition of the N IV line and N V (1238.81 A, 1242.804 A) resonance lines using the model given by Danezis et al. (2003, 2005a,b). We give the kinematical parameters of subregions where the high-ionized N IV line is formed.

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