Image Details
Caption: Figure 6.
Top: histograms of the measured heliocentric velocity (cz⊙). Middle: histograms of the measured H I flux. Bottom: histograms of the measured H I mass. The results of the ALFALFA and the FATHOMER galaxy samples in the same sky area are shown in blue and red, respectively.
© 2026. The Author(s). Published by the American Astronomical Society.