NASA NTRS · 19930026495
X-ray observations of planetary nebulae with binary nuclei
Abstract
Einstein and EXOSAT satellite observations of X-ray emission from the planetary nebulae A63 and LoTr 5 are reviewed. Both of these systems contain binary central stars. No flux was detected from A63 (central star UU Sge). LoTr 5 (central star IN Com) is a previously unreported X-ray emitter; it showed no statistically significant X-ray variability. Three models for the source of the X-ray emission in such systems are considered in the light of these and previous results.
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Apparao, K. M. V., Berthiaume, G. D., Nousek, J. A.. 1992-10-01. X-ray observations of planetary nebulae with binary nuclei. https://ntrs.nasa.gov/citations/19930026495
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