Astronomers have used radial velocity monitoring to discover
A) extra-solar 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) extra-solar planetary systems that contain more than one planet.

Question

Quizplus · Accepted Answer

Radial velocity monitoring is a technique used to detect exoplanets by measuring the small wobbles induced on a star's motion due to the gravitational pull of the orbiting planet. This technique is particularly good at detecting large and massive planets, as they induce larger wobbles on the star. As a result, astronomers have been able to detect extra-solar planetary systems that contain more than one planet using radial velocity monitoring.

Astronomers Have Used Radial Velocity Monitoring to Discover