Open Access

Fig. 8.

image

Download original image

Optical luminosity (de-reddened νLν in g′) versus X-ray luminosity (0.5–10 keV) for MAXI J1957+032. Black points and red diamonds show black-hole X-ray binaries in the hard and soft state, respectively; open circles represent NS systems (Russell et al. 2006, 2007).

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.