Open Access

Fig. 9

image

Download original image

Comparison of the Ca II K line cores of the low activity Hyades early K-type giant ϵ Tau with the γ Per late G giant shows nearly perfect coincidence, demonstrating the low-activity nature of the latter despite its larger mass. While these spectra are virtually identical inside the Ca II K line, the gamma Per G giant’s spectrum contains the most noise.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.