Which of the following is not a technique used to discover exoplanets?Group of answer choiceswobble methodKepler telescopeQuasars methodTransit method

Break Down the Problem

1. Identify the various techniques used to discover exoplanets based on the provided options.
2. Determine which option does not belong to the list of valid exoplanet discovery methods.

Relevant Concepts

• Wobble Method (Radial Velocity Method): This technique detects exoplanets by measuring the gravitational influence they have on their host stars, causing the stars to wobble.
• Kepler Telescope: This space telescope used the transit method to discover thousands of exoplanets by monitoring the brightness of stars for periodic dips.
• Quasars Method: Quasars are distant celestial objects, and they are not a method for discovering exoplanets.
• Transit Method: This method involves detecting the dimming of a star’s light that occurs when a planet passes in front of it.

Analysis and Detail

1. Wobble Method: Valid technique, detects gravitational effects.
2. Kepler Telescope: A tool that utilizes the transit method; it is valid.
3. Quasars Method: Not a discovered method for exoplanets; quasars are not related.
4. Transit Method: Well-established technique for discovering exoplanets.

Verify and Summarize

Upon reviewing all methods, we confirm that the Quasars Method is the outlier as it is not used for discovering exoplanets.

Final Answer

The method that is not used to discover exoplanets is the Quasars Method.