Question

Which new process was added to the nebular theory of solar system formation to account for the existence of Jupiter-mass planets that orbit close to their stars (the "hot Jupiters")?

Answer 1

Answer:

Explanation:

Due to their very intense activity and magnetic fields, they are covered with sunspots hundreds of times bigger than those on the Sun. These therefore generate perturbations in the star's spectrum that are much greater than those caused by planets, making them much harder to detect, even when they are hot Jupiters.

Answer 2

The new process added to the nebular theory that accounts for the existence of " hot Jupiters " is ;  

• The formation of protoplanetary disks during the formation of stars

The formation of stars produces a gaseous protoplanetary disk around a new/young star just formed, and this protoplanetary gives rise to the hot jupiters which revolve around the star in a short period ( 10 days ) before cooling off and evolving into a known planetary body after a very long period ( approximately 10 million years ).

The protoplanetary disks exist  very hot temperatures and revolve around the newly formed star and this accounts for the "Hot Jupiter ".

Hence we can conclude that the new process added to the nebula theory  that accounts for the existence of " hot Jupiters " is ;  The formation of protoplanetary disks during the formation of stars.

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