He said that the new findings had motivated him to look at other extrasolar systems
with similar kinds of unexplained radial velocity data, to see if other stars or planets may be lurking there.
The newcollection suggests that lighter planets are more common in extrasolar systems
than heavier Jupiter-like ones.
These mutual perturbations can change the orbits, as we see in these extrasolar systems
," Rasio said.
Done in cooperation with NASA, this so-called Nulling InfraRed survey of Extrasolar Systems
for TPF, or NIREST (as in the nearest stars) will help refine observing strategies for the proposed Terrestrial Planet Finder mission.
Resonances also exist in numerous extrasolar systems
discovered over the past 10 years.