Free Access

Fig. 4


Chandra image of the central 25″ of NGC 3998. Only one source, much fainter than the core, is present in the field. See Appendix B for more details. The horizontal bright line corresponds to the readout streak events.

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.