Question

hot jupiters are massive gas giant exoplanets that are physically similar to jupiter but orbit close to their parent star. what is the most widely accepted theory of how hot jupiters formed? they were captured from other star systems. they are artifacts of the observational methods used and do not really exist. they formed far from their stars, like jupiter, and then migrated inward. they formed where they are located now, near their stars.

Explanation:

The most widely - accepted theory is that hot Jupiters formed far from their stars like Jupiter and then migrated inward due to gravitational interactions and other processes in the protoplanetary disk. They are real exoplanets and not artifacts of observational methods, and capture from other star systems is less likely compared to the migration theory. Formation near the star is also less supported as conditions near the star are not conducive to the formation of such large gas - giants.

Answer:

They formed far from their stars, like Jupiter, and then migrated inward.