The activity-rotation relation and the convective turn-over time of low-mass stars

Details The activity-rotation relation and the convective turn-over time of low-mass stars The activity-rotation relation and the convective turn-over time of low-mass stars

Sep 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988iraj...18..265c&link_type=abstract

(Astronomocal Science Group of Ireland, Meeting, University College, Cork, Republic of Ireland, Mar. 31, 1988) Irish Astronomica

Astronomy and Astrophysics

Astronomy

Stellar Activity, Stellar Rotation, Emission Spectra, Stellar Mass, Stellar Spectra

Scientific paper

The activity-rotation relation has been investigated for single main-sequence stars later than F7 for which well-determined rotation periods and Ca II H and K or Mg II h and k emission fluxes are available in the literature. The chromospheric emission-rotation correlation of Marilli et al. (1986) is considered, adopting the line emission luminosity as the activity parameter. The present results can be used to constrain the convective turn-over time, the ratio between the mixing length and the pressure scale height, and the functional dependence of the emission on rotation.

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