Astronomy and Astrophysics – Astrophysics
Scientific paper
2007-01-08
Astronomy and Astrophysics
Astrophysics
4 pages, 4 figures, to appear in the ASP Conference Series for the 15th European White Dwarf Workshop, Leicester, UK, August 7
Scientific paper
We present results for the 2m spectroscopic part of the MultiSite Spectroscopic Telescope campaign, which took place in May/June 2002. In order to perform an asteroseismological analysis on the multiperiodic 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 \textit{BRUCE} and \textit{KYLIE} programs and assuming strong rotation and low inclination favours models with $l=1$ or $l=2$ with $m\leq0$.
Heber Uli
O'Toole Simon J.
Tillich Alfred
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