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| Paper: |
Time Resolved Spectroscopy of the Multi-Periodic Pulsating Subdwarf B Star PG1605+072 |
| Volume: |
372, 15th European Workshop on White Dwarfs |
| Page: |
611 |
| Authors: |
Tillich, A.; Heber, U.; O'Toole, S.J. |
| Abstract: |
We present results for the 2m spectroscopic part of the Multi-Site Spectroscopic Telescope (MSST) campaign, which took place in May/June 2002. In order to perform an asteroseismological analysis on the multi-periodic pulsating subdwarf B star PG 1605+072 we used over 150 hours of time resolved spectroscopy in order to search for and analyse line profile variations by using phase binning. We succeeded in finding variations in effective temperature and gravity for four modes. A pilot analysis using the BRUCE and KYLIE programs and assuming strong rotation and low inclination favours models with l = 1 or l = 2 with m ≤ 0. |
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