Which other exoplanet detection method is often used to confirm or refine radial velocity results regarding mass?
Answer
The transit method.
If the transit method confirms a planet passes in front of the star, it implies the system is nearly edge-on ($i ext{ is near } 90^ ext{o}$), allowing the radial velocity measurement to yield the definitive planetary mass.
#Videos
Detecting Exoplanets: Radial Velocity Method - YouTube
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