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Up: Nonvariability among Bootis

2. Selection of candidate and comparison stars

Candidates for our photometric survey were primarily taken from Renson et al. (1990) and Gray & Corbally (1993). We performed a critical search in the literature to reject candidates which probably are not tex2html_wrap_inline1163Bootis stars. Finally, we have compared the list (Table1 (click here)) with our new catalogue (Paunzen et al. 1997). For some of the observed stars, classification spectra are still missing (indicated with a question mark in the row of the spectral classification in Table1 (click here)). Nevertheless the level of confidence is very high that all presented programme stars are true tex2html_wrap_inline1165Bootis stars, except HD154153. This star could belong to the intermediate PopulationII group (Gray 1989) and was also quoted as probable misclassified in Renson et al. (1990). But further observations have to clarify its evolutionary status.
We have tried to use at least two comparison stars in the same magnitude and spectral range as the candidate star. The selected comparison stars were checked via Simbad for already known variability.



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