Contact and near-contact binary systems. IX - EE Aquarii and RS INDI

Details Contact and near-contact binary systems. IX - EE Aquarii and RS INDI Contact and near-contact binary systems. IX - EE Aquarii and RS INDI

May 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988mnras.232..147h&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 232, May 1, 1988, p. 147-162. SERC-supported research.

Astronomy and Astrophysics

Astronomy

10

Astronomical Spectroscopy, Eclipsing Binary Stars, Main Sequence Stars, Stellar Spectrophotometry, Companion Stars, Energy Transfer, Light Curve, Radial Velocity, Roche Limit, Stellar Luminosity, Stellar Mass

Scientific paper

Reticon spectroscopy for the short-period binary systems EE Aquarii and RS Indi, and BVRIc photometry for RS Indi, are presented for the first time. The analyses of these data for masses, radii and luminosities show that both systems are close to semi-detached states with the low-mass secondary components both filling 94±3 per cent of their Roche lobes. The primary component of RS Ind similarly fills 93±3 per cent of its Roche lobe, whilst that of EE Aqr fills 86±3 per cent. The albedos of the secondary components are found to be normal for convective atmospheres, indicating that at the present time there is no energy transfer between the components.

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