The 1982 eclipse of 31 Cygni

Details The 1982 eclipse of 31 Cygni The 1982 eclipse of 31 Cygni

Jun 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...281..751s&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 281, June 15, 1984, p. 751-759. NASA-supported research.

Astronomy and Astrophysics

Astrophysics

15

Eclipsing Binary Stars, Late Stars, Light Curve, Stellar Spectrophotometry, Supergiant Stars, Ubv Spectra, Auriga Constellation, Cygnus Constellation, Iue

Scientific paper

UBV photometry and optical-UV spectroscopy of the primary eclipse of the long period ζ 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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