Hyper ionization phenomena in the N V region of 20 Oe stars
Abstract
Spectral lines of Oe and Be stars present DACs or SACs. In this paper we study the N IV line (%u03BB 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.
- Publication:
-
UV Astronomy: Stars from Birth to Death
- Pub Date:
- July 2007
- Bibcode:
- 2007uasb.conf..155A
- Keywords:
-
- Oe stars;
- N IV;
- DACs;
- SACs;
- Gaussian contribution;
- random velocities;
- FWHM.