The derived minimum masses for the companions are from 0.45 to 7 Jupiter masses.
Eccentricities are unexpected in close systems and are still to be explained.
Pegasi Has no Planet,2 in which Gray asserts that the velocity periodicities being detected are associated with stellar oscillations rather than with orbital motions. To get an idea of a millimagnitude, the brightest star you can see that is not the Sun has an apparent magnitude of -1, and the faintest that is visible to the average human eye is 6th magnitude. It1s hard to distinguish differences of 0.1 magnitude between two stars with an untrained eye, and 0.01 mag is too difficult even for bare-eyed professionals. Finally, the shapes of the 3lines2 in the stellar spectrum would be expected to change periodically if 51 Peg were oscillating. Peg not Tau Bootes show periodic variations in their line-profiles.