The absorption lines in the optical spectrum show radial velocity variations, although there is significant uncertainty about the period.
We have attached some temporary bypass and leader circuits to compensate for the velocity variation.
Instead the long-term radial velocity variations may be caused by the star's magnetic cycle.
Analysis of the resulting data found that the radial velocity variations most likely indicated the existence of a planet.
In many binary stars, the orbital motion usually causes radial velocity variations of several kilometers per second.
So far the detection has not been confirmed, though Hekker et al. (2008) listed significant radial velocity variations at periods of 767 and 1586 days.
It is "well known for its complex spectrum and for its light and velocity variations".
Moreover radial velocity variations would also hint two strong signals at 8.5 and 1340 days.
In the past, radial velocity variations have been reported, but this remains unconfirmed.
The Californians have refined their technique to making measurements of such velocity variations within an accuracy of 10 feet per second.