Free Access

Fig. 10


Comparison between the properties of BCDs (squares) and of dIrrs (dots). The dIrrs are taken from Swaters et al. (2009), selecting the objects with high-quality rotation curves and Vrot < 70 km s-1 at the last measured point. The BCDs are UGC 4483 (this work), I Zw 18 (Lelli et al. 2012), NGC 6789 (Lelli et al., in prep.), and NGC 1705 (Meurer et al. 1998). Some galaxies are labelled according to their UGC number. Left: R-band central surface brightness (inclination corrected) versus the inner rotation-velocity gradient Vrot(R0)/R0, where R0 is the optical scale-length. Right: peak H I surface density ΣH   I,   peak versus Vrot(R0)/R0. ΣH   I,   peak is derived from the azimuthally-averaged H I surface density profiles. See Sect. 4 for details.

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.