Systems with “Hot Jupiter” are Unlikely to Have Earth-Like Planets
Researchers have found that it is very improbable that the systems with hot Jupiters may have Earth-sized planets. They are of the opinion that hot planets with the size of Jupiter disrupt the formation of Earth-like planets.
This research has been conducted by Jason Steffen of the Fermilab Center for particle Astrophysics. They used the data from NASA’s Kepler mission to study the hot Jupiters. They also looked for smaller planets transiting them.
It has been found that not a single candidate from 63 hot Jupiter systems has a nearby companion planet. However, in the case of warm Jupiter systems (planet with the same size but not so close to the system’s star), 10% of systems have been found to have nearby worlds and in the case of hot Neptunes (small sized planets but closer to their system’s star), a third of the systems have nearby worlds.
"The implications of these findings are that systems with Earth-like planets formed differently than systems with hot Jupiters," says Carnegie's Alan Boss, who is one of the authors of the research.
"Since we believe that hot Jupiters formed farther out, and then migrated inward toward their stars, the inward migration disrupted the formation of Earth-like planets. If our sun had a hot Jupiter, we would not be here."
This research would narrow the search for Earthlike planets in the universe. This research has been published online in the journal of the Proceedings of the National Academies of Sciences.