Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006ap%26ss.304..139s&link_type=abstract
Astrophysics and Space Science, Volume 304, Issue 1-4, pp. 139-143
Astronomy and Astrophysics
Astrophysics
Pulsation, Binarity, Lbvs, S Dor Stars, &Beta, Cep Stars, &Delta, Sct Stars
Scientific paper
Intensive monitoring of main-sequence stars for pulsational studies continuously reveals new binaries and multiple systems. The resulting extensive data sets lead to exact orbital parameters, and to accurate masses of the components. This is also the case higher up the main sequence, though less frequently. We discuss a few examples where intensive observational efforts are necessary in order to improve our knowledge of the pulsational behaviour in the upper main-sequence instability domains, but we emphasize that observational efforts alone that turn out more and more of the same type of data, are by far insufficient, and that there is urgent need for theoretical developments. Determination of highly accurate stellar parameters is of paramount importance and is much more needed than time-series observations.
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