Revised photometric elements of the eclipsing binary AI CRU

Details Revised photometric elements of the eclipsing binary AI CRU Revised photometric elements of the eclipsing binary AI CRU

Aug 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980ap%26ss..71..411g&link_type=abstract

Astrophysics and Space Science, vol. 71, no. 2, Aug. 1980, p. 411-413. Research supported by the Consiglio Nazionale delle Rice

Astronomy and Astrophysics

Astrophysics

4

Eclipsing Binary Stars, Electrophotometry, Light Curve, B Stars, Computer Techniques, Stellar Temperature

Scientific paper

Using Wood's (1972) model we have re-analyzed the photoelectric light curve of the eclipsing binary Al Cru, published and unsatisfactorily discussed by Ollongren (1956), in order to obtain reliable photometric elements. Our photometric solution differs considerably from Ollongren's (1956). For our photometric mass ratio q = 0.8, both components, though detached from their Roche lobes, are fairly close to a contact configuration. AT Cru, composed of a brighter and larger B5 primary and a fainter and smaller (around B9.5) secondary, is probably not a normal Main Sequence system, since the ratios of the secondary's mass and radius over the primary's turn out to be larger than expected for main sequence stars of the same spectral types

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