Mixed L−σ relation for the combined Chavez14/SDSS (black squares) and BT11 sample (red triangles) of 132 HII galaxies. The lines show the LSQ and ML fits as in the previous figures and the relevant parameters are given in Table D.1. The green dots correspond to the 16 giant HII regions of the Hippelein/Arenas sample used to calibrate the zero point of the relation and thus establish the value of H0. The inset shows the χ2 curve (actually ) and the value of H0 determined from a cubic fit to the curve.
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.