Astronomers have used radial velocity monitoring to discover:
A) extrasolar planetary systems that are similar to our own Solar System.
B) Earth-sized planets around other stars.
C) Earth-sized planets at distances of 10 AU from their parent stars.
D) extrasolar planetary systems that contain more than one planet.

Question

Quizplus · Accepted Answer

Radial velocity monitoring is a method used to detect the wobble of a star caused by the gravitational pull of orbiting planets. This technique is most effective in detecting larger, more massive planets that are closer to their parent stars. Therefore, it has been most successful in discovering extrasolar planetary systems that contain more than one planet.

Astronomers Have Used Radial Velocity Monitoring to Discover