The X-ray source A0538-66 in optical quiescence

Details The X-ray source A0538-66 in optical quiescence The X-ray source A0538-66 in optical quiescence

Mar 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981ssrv...30..433m&link_type=abstract

(European Space Agency, ESLAB Symposium on X-ray Astronomy, 15th, Amsterdam, Netherlands, June 22-26, 1981.) Space Science Revie

Astronomy and Astrophysics

Astronomy

Line Spectra, Stellar Flares, Stellar Spectra, Stellar Spectrophotometry, X Ray Sources, H Beta Line, Helium, Hertzsprung-Russell Diagram, Periodic Variations, Stellar Atmospheres

Scientific paper

Photometric observations of A0538-66 in quiescence show that the optical star is an object of equivalent spectral type B7eII. Spectroscopic data taken simultaneously confirm this spectral classification and are consistent with the reported periodic variations seen in the emission lines. It is unlikely that the optical outburst is due to X-rays reprocessed in the atmosphere of the primary star or elsewhere

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