Helium λ 4009.27 Å Phase Variation in Alpha Virginis
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...
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Faculty of Science, University of Malaya
2007
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my.um.eprints.17682021-04-27T07:51:33Z http://eprints.um.edu.my/1768/ Helium λ 4009.27 Å Phase Variation in Alpha Virginis Zain, S.F.S. Ahmad, N. Zainuddin, M.Z. QA75 Electronic computers. Computer science 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. Faculty of Science, University of Malaya 2007 Article PeerReviewed Zain, S.F.S. and Ahmad, N. and Zainuddin, M.Z. (2007) Helium λ 4009.27 Å Phase Variation in Alpha Virginis. Malaysian Journal of Science, 26 (2). pp. 143-149. ISSN 1394-3065 http://myais.fsktm.um.edu.my/2437/ |
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QA75 Electronic computers. Computer science |
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QA75 Electronic computers. Computer science Zain, S.F.S. Ahmad, N. Zainuddin, M.Z. Helium λ 4009.27 Å Phase Variation in Alpha Virginis |
| description |
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. |
| format |
Article |
| author |
Zain, S.F.S. Ahmad, N. Zainuddin, M.Z. |
| author_facet |
Zain, S.F.S. Ahmad, N. Zainuddin, M.Z. |
| author_sort |
Zain, S.F.S. |
| title |
Helium λ 4009.27 Å Phase Variation in Alpha Virginis |
| title_short |
Helium λ 4009.27 Å Phase Variation in Alpha Virginis |
| title_full |
Helium λ 4009.27 Å Phase Variation in Alpha Virginis |
| title_fullStr |
Helium λ 4009.27 Å Phase Variation in Alpha Virginis |
| title_full_unstemmed |
Helium λ 4009.27 Å Phase Variation in Alpha Virginis |
| title_sort |
helium λ 4009.27 å phase variation in alpha virginis |
| publisher |
Faculty of Science, University of Malaya |
| publishDate |
2007 |
| url |
http://eprints.um.edu.my/1768/ http://myais.fsktm.um.edu.my/2437/ |
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1698697291949408256 |
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13.18916 |