Open Access

Fig. 1

image

Download original image

Examples of normalised spectra of the spectral sequence of stars investigated here, arranged from hottest (top) to coolest (bottom). Displayed are three spectral windows, around Ηδ (left), He II λ4686 Å (middle), and Hα (right panel). The major spectral features are identified; the sharp absorption lines around Hα are telluric H2O features.

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.