Core accretion scenario

Question 1

What is the first step of the core accretion scenario?

Answer 1

Formation of young Sun and protoplanetary disc by gravitational collapse

Question 2

What is the second step of the core accretion scenario?

Answer 2

Condensation of sub μm dust particles

Question 3

What is the third step of the core accretion scenario?

Answer 3

Growth of particles by pair-wise collisions, up to ~10km planetesimals

Question 4

What is the fourth step of the core accretion scenario?

Answer 4

Growth to protoplanets assisted by mutual gravity

Question 5

What is the fifth step of the core accretion scenario?

Answer 5

More massive cores beyond the snowline, where ices can form
m_core α r^1/2

Question 6

What is the sixth step of the core accretion scenario?

Answer 6

Massive cores accrete gas from disc

Question 7

What is the seventh of the core accretion scenario?

Answer 7

Terrestrial planets assembled via giant collisions between protoplanets after disc disposal