Free Access

Fig. 1


The simulation of the BX system of AlO (red line) is compared to the spectrum of VY CMa (blue line). The simulation was obtained for Trot = 700 K and Tvib = 2200 K. A rescaled spectrum of Betelgeuse is also shown (grey line) to illustrate the contribution of photospheric (and circumstellar) features that have not been included in the simulation. From top to bottom, the panels contain sections of the spectrum dominated by the Δν = 2, 1, 0, and –1 sequences. The positions of AlO band-heads are indicated with red markers and labels (giving ν′′ and ν′), while some of the strongest features in the stellar spectra are indicated by grey markings.

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.