NASA NTRS · 19880051382
Chromospheric activity in open clusters
Abstract
Spectra of Ca II H and K are being taken for stars of similar mass in the Hyades, the Pleiades, and NGC 752. These spectra will be used to create indices of chromospheric activity on these stars. The dispersion in these indices will then be compared to model dispersions which take into account stellar inclination, position of active regions, and filling factor. Only a few observations have been made to date. These show that a high signal to noise is achievable over reasonable exposure times. Modeling has only just begun.
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Pilger, E. J.. 1987-01-01. Chromospheric activity in open clusters. https://ntrs.nasa.gov/citations/19880051382
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