On the link between coronal activity and orbital period in evolved binary stars.

Details On the link between coronal activity and orbital period in evolved binary stars. On the link between coronal activity and orbital period in evolved binary stars.

Jun 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996a%26a...310..797m&link_type=abstract

Astronomy and Astrophysics, v.310, p.797-800

Astronomy and Astrophysics

Astrophysics

2

Stars: Activity, Binaries: Spectroscopic, Stars: Coronae, Stars: Rotation, X-Rays: Stars

Scientific paper

The analysis of the relationship between X-emission flux and orbital period indicates a drop in the X-ray emission of binaries with evolved components at orbital periods of about 100 days: Intense X-ray emitters have an orbital period lower than 100 days, whereas with an orbital period greater than about 100 days are weak X-ray emitters. This critical period corresponds to the orbital period separating binary systems with circular orbits from those of eccentric orbits.

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