NASA NTRS · 19840058944
The 1982 eclipse of 31 Cygni
Abstract
UBV photometry and optical-UV spectroscopy of the primary eclipse of the long period Zeta Aurigae-like system 31 Cygni are reported. The precise timings made possible by the photometry imply that the spectral features could be due to an accretion shock associated with a hot star embedded in an extended chromosphere surrounding the red supergiant. The data also suggest an extended clumpy structure to the atmosphere of the late-type supergiant in the binary.
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Hopkins, J. L., Fried, R., Schmidtke, P. C., Kondo, Y., Chapman, R. D., Stencel, R. E., Hagen, W.. 1984-06-15. The 1982 eclipse of 31 Cygni. https://ntrs.nasa.gov/citations/19840058944
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