Analysis of the velocity-distance diagrams in the presence of the Great Attractor
T. Ekholm, P. Teerikorpi · 1994
In the present paper we study the appearance of velocity-distance diagrams, when the distances are calculated by either the direct or the inverse Tully-Fisher (TF) relation and when the velocity field is generated by a spherically symmetric mass concentration, and try to understand some contradicting reports on the kinematics close to the Great Attractor (GA). Since the application of Malmquist corrections for the distance moduli is not a straightforward task in the presence of a general velocity field, we also searched for methods for obtaining a minimally biased subsample from the data with direct TF-distance and tested the influence of the chosen inverse relation