Which characteristic observed in most Hot Jupiters favors disk migration over gravitational scattering as the dominant mechanism?
Answer
The prevalence of nearly circular orbits.
Gravitational scattering often results in highly eccentric orbits, whereas disk migration imparts a smooth, circularizing effect, aligning with the low eccentricity commonly observed in Hot Jupiters.
#Videos
What are Hot Jupiters? - YouTube
Related Questions
What orbital distance generally defines a Jovian-mass planet as a Hot Jupiter?What was the name of the first confirmed exoplanet of the Hot Jupiter type, discovered in 1995?Why does the core accretion model struggle to explain the formation of Hot Jupiters in their observed close-in orbits?What mechanism is the leading explanation for how massive planets achieve orbits close to their stars?What mechanism characterizes Type I migration in a protoplanetary disk?How does Type II migration conceptually differ from Type I migration for a massive, growing planet?Which characteristic observed in most Hot Jupiters favors disk migration over gravitational scattering as the dominant mechanism?What scenario is gravitational scattering often invoked to explain, despite migration being dominant?What classification applies to planets similar in mass to Jupiter but orbiting further out, perhaps between 0.5 and a few AU?What class of exoplanets represents Hot Jupiters that orbit their star in less than one Earth day?