The 1980/81 shell event in AG Carinae

Details The 1980/81 shell event in AG Carinae The 1980/81 shell event in AG Carinae

Nov 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983mnras.205..577w&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 205, Nov. 1983, p. 577-584.

Astronomy and Astrophysics

Astronomy

20

Infrared Spectra, Stellar Envelopes, Supergiant Stars, Variable Stars, Brightness Distribution, Interstellar Extinction, Radiant Flux Density, Stellar Mass Ejection, Stellar Spectrophotometry, Visible Spectrum

Scientific paper

Observations made between 1974 and 1982 show that the P Cygni supergiant AG Car is variable in the infrared (JHKL). Between 1980 and 1982 AG Car brightened by over a magnitude at K and then faded again, these changes being parallelled by optical light variations. The brightening was accompanied by a reddening of the flux distribution and extreme variations in both the infrared and optical spectrum. It seems probable that these effects were due to the ejection of a shell.

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