Annu. Rev. Astron. Astrophys. 1997. 35: 101-136 Copyright © 1997 by Annual Reviews. All rights reserved

3. TWO KINDS OF MALMQUIST BIAS

In recent years, Kapteyn's Problems I and II have been discussed (by authors unaware of that early work) in connection with extragalactic distances from methods like Tully-Fisher (TF) and Faber-Jackson, for determination of the Hubble constant and peculiar velocity maps. Both of these problems have been sometimes referred to as Malmquist bias. I have collected in Table 1 examples of the used nomenclature.