Document Type

Poster Presentation

Symposium Date

Spring 2012

Abstract

We are exploring the theory that binary central stars of planetary nebulae are a contributing factor in the formation of planetary nebulae. We search for this photometric variability in central stars of planetary nebulae because consistent periodic variability is indicative of a close binary system. The variability of our targets is assessed with the image subtraction software, ISIS. We find that the central stars of the planetary nebulae (CSPNe) Hen 2-84 and NGC 6326 show variability. A preliminary light curve for Hen 2-84 shows periodic behavior, suggesting a binary system. Of the remaining targets observed, with sufficient data, seven do not appear to have substantial variability detected through ISIS and two targets have undeterminable variability.

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