On the link between rotation and coronal activity in evolved stars.

Details On the link between rotation and coronal activity in evolved stars. On the link between rotation and coronal activity in evolved stars.

Oct 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995a%26a...302..745d&link_type=abstract

Astronomy and Astrophysics, v.302, p.745

Astronomy and Astrophysics

Astrophysics

28

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

Scientific paper

We analyse the behaviour of coronal activity as a function of rotation for a large sample of single and binary evolved stars for which we have obtained CORAVEL high precision rotational velocities. This study shows that tidal effects play a direct role in determining the X-ray activity level in binary evolved stars. The circularisation of the orbit is a necessary property for enhanced coronal activity in evolved binary stars.

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