Orbital period analysis of some classical Algols with pulsating components

Details Orbital period analysis of some classical Algols with pulsating components Orbital period analysis of some classical Algols with pulsating components

Dec 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008coast.157..321s&link_type=abstract

Communications in Asteroseismology, Vol.157, p. 321-322

Computer Science

3

Scientific paper

The long-term orbital period variations of the Algol-type binaries with δ Scuti compo- nent(oEA) AB Cas, CT Her, and TW Dra are investigated. An upward parabola is seen in all of these systems O-C diagrams, as is expected from the evolutionary scenario of clas- sical Algols. In addition to parabolic variations, the periodic variations on the parabola were explained with light-time effect due to probable unseen components around the eclipsing pairs.

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