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1979•The Astrophysical JournalRequires access

The early-type semidetached system SX Aurigae

Carlson R. Chambliss, K. C. Leung

Open publisher page 14 citations

Abstract

SX Aurigae is an eclipsing binary consisting of two B type components with a period of 1.210080 days. Its light curves are of the beta Lyrae type. 1608 UBV photoelectric observations were analyzed by the Russell-Merrill, Kopal-Jurkevich, and Wilson-Devinney approaches. The third procedure yielded the most consistent solutions. The absolute dimensions of SX Aur were also calculated assuming previously determined spectroscopic elements. The system is found to be semidetached, with the less massive component filling its Roche lobe. The other component nearly fills its Roche lobe, but it does not appear to be underluminous. It is believed that SX Aur is in the final stage of the slow phase of case A mass transfer.

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What this paper is about

SX Aurigae is an eclipsing binary consisting of two B type components with a period of 1.210080 days. Its light curves are of the beta Lyrae type. 1608 UBV photoelectric observations were analyzed by the Russell-Merrill, Kopal-Jurkevich, and Wilson-Devinney approaches. The third procedure yielded the most consistent solutions. The absolute dimensions of SX Aur were also calculated assuming previously determined spectroscopic elements. The system is found to be semidetached, with the less massive component filling its Roche lobe. The other component nearly fills its Roche lobe, but it does not appear to be underluminous. It is believed that SX Aur is in the final stage of the slow phase of case A mass transfer.

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Available abstract

SX Aurigae is an eclipsing binary consisting of two B type components with a period of 1.210080 days. Its light curves are of the beta Lyrae type. 1608 UBV photoelectric observations were analyzed by the Russell-Merrill, Kopal-Jurkevich, and Wilson-Devinney approaches. The third procedure yielded the most consistent solutions. The absolute dimensions of SX Aur were also calculated assuming previously determined spectroscopic elements. The system is found to be semidetached, with the less massive component filling its Roche lobe. The other component nearly fills its Roche lobe, but it does not appear to be underluminous. It is believed that SX Aur is in the final stage of the slow phase of case A mass transfer.

Key concepts: Physics, Astrophysics, Light curve, Stars, Photometry (optics), Astronomy, Roche lobe, Binary star

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