Variability in Protoplanetary Nebulae. X. Multiyear Periods as an Indicator of Potential Binaries

Variability in Protoplanetary Nebulae. X. Multiyear Periods as an Indicator of Potential Binaries

New observations are presented of four evolved objects that display long, multiyear variations in their light curves. These are interpreted as good evidence of their binary nature, with the modulation caused by the barycenter motion of the evolved star resulting in a periodic obscuration by a circum...

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Bibliographic Details
Main Authors:	Bruce J. Hrivnak, Wenxian Lu, Gary Henson, Todd C. Hillwig
Format:	Article
Language:	English
Published:	IOP Publishing 2023-01-01
Series:	The Astronomical Journal
Subjects:	Post-asymptotic giant branch stars Evolved stars Binary stars Long period variable stars RV Tauri variable stars Protoplanetary nebulae
Online Access:	https://doi.org/10.3847/1538-3881/ad0cc4

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