A distance scale from the infrared magnitude/H I velocity-width relation. III. The expansion rate outside the local supercluster

Infrared magnitudes and 21 cm H I velocity widths are presented for galaxies in the Pegasus I cluster (Vapprox. =4000 km s-1), the Cancer cluster (Vapprox. =4500 km s-1), cluster Zwicky 1400.4+0949(Z74-23) Vapprox. =6000 km s-1), and the Perseus supercluster (Vapprox. =5500 km s-1). The data are used to determine redshift-independent distances from which values of the Hubble ratio can be derived. With a zero point based solely on the Sandage-Tammann distances to M31 and M33, the following results are obtained (zero-point error excluded): Pegasus I.: r=42 +- 4 Mpc, V/r=91 +- 8 km s-1 Mpc-1; Cancer.: r=49 +- 6 Mpc, V/r=89 +- 11 km s-1 Mpc-1; Z74-23.: r=61 +- 4 Mpc, V/r=96 +- 7 km s-1 Mpc-1; Perseus supercluster.: r=53 +- 2 Mpc, V/r=104 +- 6 km s-1. Mpc-1