We observe very dense objects in our Galaxy that are known as \"neutron stars.\"

Question

We observe very dense objects in our Galaxy that are known as "neutron stars." Put the following events describing the formation of neutron stars in the correct order.

1. The material in the iron core becomes so compressed that its density approaches that of an atomic nucleus, forming extremely dense "neutron degernate matter."

2.Successive core fusion stages produce heavier elements, up to iron.

3. The super-dense neutron degenerate core is left behind

4. The outer parts of the star fall onto the neutron degenerate core and then bounce off.

5. A shockwave moves outward through the star causing it to explode, creating a Type II supernova

6. Core hydrogen fusion in a high mass star ends.

7. The iron core becomes too heavy to support itself

8. The iron core collapses inward.

9. The outer parts of the star fall down onto the non-burning core, compressing it further.

Explanation / Answer

8

2

3

1

4

9

5

7

6

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