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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| Format: | Article |
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Faculty of Science, University of Malaya
2007
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| 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. |
| collection | UM |
| 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. |
| first_indexed | 2024-03-06T05:06:33Z |
| format | Article |
| id | um.eprints-1768 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:06:33Z |
| publishDate | 2007 |
| publisher | Faculty of Science, University of Malaya |
| record_format | dspace |
| spelling | 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/ |
| spellingShingle | QA75 Electronic computers. Computer science Zain, S.F.S. Ahmad, N. Zainuddin, M.Z. Helium λ 4009.27 Å Phase Variation in Alpha Virginis |
| title | 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_short | Helium λ 4009.27 Å Phase Variation in Alpha Virginis |
| title_sort | helium λ 4009 27 a phase variation in alpha virginis |
| topic | QA75 Electronic computers. Computer science |
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