Lack of emission lines in the optical spectra of SAX J1808.4–3658 during reflaring of the 2019 outburst

Open Access

Fig. 3.

Broad Hα emission line during quiescence in September, 2007 (MJD 54345.9915). The blue solid line shows the VLT-FORS1 spectrum, while the dashed red line shows a Gaussian fit over the line, excluding the core.

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.