The regions marked in boldface are known superbubbles previously catalogued as H II regions. The regions quoted between parentheses are objects with uncertain identification. Peak velocity in units of km s -1 . Parentheses indicate uncertain values. Velocity dispersion in units of km s -1 .
Parentheses indicate uncertain values.
Logarithm of the H luminosity in units of erg s -1 . The radial velocities were corrected to the heliocentric system of reference. Spectral types from Azzopardi et al. These cases have been quoted within parentheses in Table 4 . The H luminosity function for the H II regions in IC 1613.