An Emperical Relation Between CaII Emission Flux Excess and Stellar Age for Late Type Main Sequence Stars

Details An Emperical Relation Between CaII Emission Flux Excess and Stellar Age for Late Type Main Sequence Stars An Emperical Relation Between CaII Emission Flux Excess and Stellar Age for Late Type Main Sequence Stars

Dec 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983jkas...16...31p&link_type=abstract

Journal of the Korean Astronomical Society, vol. 16, no. 2, p. 31-42

Astronomy and Astrophysics

Astronomy

Scientific paper

Making use of a relation proposed by Wielen (1977), a new empirical relation between Ca II emission flux and stellar age is derived by analyzing Wilson and Woolley's spectroscopic data (1970) of late type main sequence stars (K0-M5) and kinematic properties of those stars given by Gliese (1969). The proposed relation shows that the emission flux excess of the Ca II H-K lines, introduced by Linsky et al. (1979) decreases with stellar age τ as τ-0.51, consistent with the inverse square law as noted by Skumanich (1972).

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