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The Period of theSymbiotic Nova PU Vulpeculae


Peter M. Garnavich

Harvard-Smithsonian Center for Astrophysics

60 Garden Street

Cambridge, MA 02138


Presented at the 84th AAVSO Annual Meeting, October 28, 1995




PU Vul is a very slowly evolving symbiotic nova. AAVSO observations spanning 15 years are used to show that the system is an eclipsing binary with a period of 13.42 + 0.02 years. Modeling of the eclipse shapes indicates that radii of both components of the binary have decreased between 1980 and 1994. The cause for the shrinkage in the size of the giant star is unknown.


Link to ADS abstract, article and citation information

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