The thesis' primary function was the period determination of k Bootis, and S Scuti Variable, through long time-base UBV photoelectric photometry. Data was analyzed using Barning's method, a Fourier technique in searching for the primary and beat periods within the range 0.0486 to 0.0826 days and 13 to 19 days respectively. The study's secondary function was the identification of overtones and the acquisition of any other information concerning this star.Ambiguity resulting from the period determinations of Millis (1966) and Desikachary et al. (1971) was tentatively resolved; the most accurate determination from this investigation gives a period of 0.07361 days and a (m of 0.05 magnitude. A beat period of 13.32 days with a o m of 0.088 magnitude was found which widely differs from the 16-day beat suggested by the Desikachary group. Due to noise problems, secondary frequencies could not be soundly identified, though the Fourier "spectra" indicated their existence. However, this study when combined with that of Desikachary et al. supports the hypothesis that K Bootis might have an undiscovered very close companion in addition to its "wide" binary component. This close binary nature may be typical of one type of δ Scuti variable.Ball State UniversityMuncie, IN 47306
| Identifer | oai:union.ndltd.org:BSU/oai:cardinalscholar.bsu.edu:handle/181153 |
| Date | 03 June 2011 |
| Creators | Warner, A. Carl |
| Contributors | Errington, Paul R. |
| Source Sets | Ball State University |
| Detected Language | English |
| Format | v, 119 leaves : ill. ; 28 cm. |
| Source | Virtual Press |
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