Zain, S.F.S.; Ahmad, N.; Zainuddin, M.Z. (2007) Helium λ 4009.27 Å Phase Variation in Alpha Virginis. Malaysian Journal of Science, 26 (2). pp. 143-149. ISSN 13943065Full text not available from this repository.
The spectroscopic observations have been carried out with the SBIG Self-guided spectrograph attached to the Celestron CG-14 which utilizes the Schmidt-Cassegrain design of the University of Malaya observatory. The spectra of spica, α Vir (67 Virginis, HIP 65474, HR 5056, HD 116658, BD -10 3672, SAO 157923) were obtained on four nights that is 28th and 30th August 2005, 1st September 2005 and 21st February 2006. The medium-resolution (R ~ 3710.349) spectrum was taken in the λ range of 3900 to 4700 Å. Phase variation of He I λ₀ ~ 4009.27Å has been studied and shows the spectroscopic binary characteristic of the Spica with variable velocity between -344.0 ± 2.25 to -140.0 ± 2.25 km/s.
|Journal or Publication Title:||Malaysian Journal of Science|
|Additional Information:||University of Malaya. Faculty of Science. Physics Dept.|
|Uncontrolled Keywords:||Spectroscopic; Eclipsing Binary|
|Subjects:||Q Science > QA Mathematics > QA75 Electronic computers. Computer science|
|Divisions:||Faculty of Science|
|Depositing User:||Mr. Faizal Hamzah|
|Date Deposited:||19 Jul 2011 12:26|
|Last Modified:||11 Dec 2014 14:26|
Actions (For repository staff only: Login required)