Constraining the degree of the dominant mode in QQ Vir
Andrzej Baran, John Telting, Roy Ostensen, Maciej Winiarski, Marek, Drozdz, Dorota Koziel, Mike Reed, Raquel Oreiro, Roberto Silvotti, Michal, Siwak, Uli Heber, Peter Papics
TL;DR
This paper applies a multicolor photometry and spectroscopy method to determine the dominant pulsation mode degree in QQ Vir, comparing results with previous studies to validate the approach.
Contribution
It introduces and applies a combined photometric and spectroscopic method for mode degree discrimination in pulsating stars, specifically targeting QQ Vir.
Findings
Successful application of the method to QQ Vir
Comparison of b1 parameter with previous values
Validation of the method's effectiveness
Abstract
We present early results of the application of a method which uses multicolor photometry and spectroscopy for \ell discrimination. This method has been successfully applied to the pulsating hot subdwarf Balloon 090100001. Here we apply the method to QQ Vir (PG1325+101). This star was observed spectroscopically and photometrically in 2008. Details on spectroscopy can be found in Telting et al. (2010) while photometry and preliminary results on \ell discrimination are provided here. The main aim of this work was to compare the value of the \ell parameter derived for the main mode in QQ Vir to previously published values derived by using different methods.
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