Estimation of the time scales for the transition from detached to contact close binaries

Details Estimation of the time scales for the transition from detached to contact close binaries Estimation of the time scales for the transition from detached to contact close binaries

Apr 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001kfnt...17..121d&link_type=abstract

Kinematika i Fizika Nebesnykh Tel, vol. 17, no. 2, p. 121-133

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Scientific paper

The time scales for the transition of the detached binary systems located on the main sequence into the contact systems of DW- and KW-types were estimated. The characteristic times needed for the DMS -> DW and DMS -> KW transitions were estimated on the scale of the orbital angular momentum loss due to the induced rotation of dynamo action in the outer convective zone and by subsequent breaking via a magnetized wind; taken into account the synchronization of the orbital angular momentum with the spin rotation leading to the approaching of the components was taken into account. The statistics describing the evolutionary transitions of DMS -> DW and DW -> KW-types were used to build the equations for showing the mutual changes in the populations of these systems. The star formation rate of the DMS-systems was estimated.

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