It is likely that the companion star in47 Tuc W- a normal star with a mass greater than about an eighth that of the Sun- is a new partner, rather than the companion that spun up the pulsar.
When the companion star runs around the main star, it alternates toward the earth or away from the earth.
Throughout the desert, we baited lion bait containing a large number of Sirius companion stars.
As a companion star orbits its primary, it alternately approaches and recedes from the Earth.