AAS 195th Meeting, January 2000
Session 75. Intrinsic Variable Stars
Display, Friday, January 14, 2000, 9:20am-6:30pm, Grand Hall

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[75.04] Pulsational Properties of the Double Mode Cepheid BQ Serpens

S.B. Holmes, R. J. Dukes (Coll. Charleston)

BQ Serpens is one of fifteen known double-mode Cepheid variable stars. In this paper we present the analysis of approximately 900 Johnson B and V observations acquired from 1991 through 1999 with the Four College Consortium's Automatic Photoelectric Telescope (FCCAPT). These data have been analyzed for periodicities by a variety of techniques. In addition to the two primary frequencies (the fundamental and first overtone) with periods of 4.2712 days and 3.0124 days, respectively, we have found a number of cross-coupling modes due to nonlinear interactions between the two oscillations. This paper will report on the extent to which our data indicates changes in any of the pulsational parameters as compared to earlier studies. This work has been supported in part by NSF grants as #AST86-16362, #AST91-15114, #AST95-28906 and #USE-9156184 to the College of Charleston.

If you would like more information about this abstract, please follow the link to http://www.cofc.edu/~dukesr/. This link was provided by the author. When you follow it, you will leave the Web site for this meeting; to return, you should use the Back comand on your browser.

The author(s) of this abstract have provided an email address for comments about the abstract: dukesr@cofc.edu

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