The Hα line in the spectrum of star WW Vul
| 1Majidova, SO, 1Rustamov, BN, 1Mikailov, KM, 1Alekberov, IA 1Nasir al-Din al-Tusi Shamakhi Astrophysical Observatory, Pirqulu, Azerbaijan |
| Kinemat. fiz. nebesnyh tel (Online) 2014, 30(2):48-57 |
| Start Page: Physics of Stars and Interstellar Medium |
| Language: Russian |
Abstract: Some results of investigations of the emission line Hα in spectra of the star WW Vul of UX Ori type are presented. Our comparison with the results of other investigators shows that variable matter ejections from the star WW Vul persist for a long time. The spectra obtained over two nights (18 and 23 July 2006) point to some increase in intensity of the red emission component, whereas radial velocity of this component is not changed strongly. Moreover, while V/R ratio decreases, the radial velocity of the central absorption drifts to negative values. Two spectra obtained during one night (08 July 2006) show that the blue emission component was doubled. |
| Keywords: star type UX Or, WW Vul |
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