Helpful tips

What will a high mass main sequence star evolve into?

What will a high mass main sequence star evolve into?

In general, the more massive a star is, the shorter its lifespan on the main sequence. After the hydrogen fuel at the core has been consumed, the star evolves away from the main sequence on the HR diagram, into a supergiant, red giant, or directly to a white dwarf.

What two things can a high mass star turn into?

At the end of a high-mass star’s life, its core is made up of iron. This iron is stable, and will not undergo fusion. Eventually, the iron core collapses due to gravity, and the star can explode as a supernova. Depending on the star’s mass, the core of the star can become a neutron star or a black hole.

What stages will a high mass star evolve?

The exact stages of evolutions are: Subgiant Branch (SGB) – hydrogen shell burning – outer layers swell. Red Giant Branch – helium ash core compresses – increased hydrogen shell burning. First Dredge Up – expanding atmosphere cools star – stirs carbon, nitrogen and oxygen upward – star heats up.

What will eventually happen to a high mass star?

When a high-mass star has no hydrogen left to burn, it expands and becomes a red supergiant. While most stars quietly fade away, the supergiants destroy themselves in a huge explosion, called a supernova. The death of massive stars can trigger the birth of other stars.

What is the cycle of a high mass star?

A massive star will undergo a supernova explosion. If the remnant of the explosion is 1.4 to about 3 times as massive as our Sun, it will become a neutron star.

What is the final stage of a high mass star?

Stage 9 – The remaining core (thats 80% of the original star) is now in its final stages. The core becomes a White Dwarf the star eventually cools and dims. When it stops shining, the now dead star is called a Black Dwarf.

Which star spends the longest time?

Science Chapter 26

Which kind of star is most likely to spend the longest time on the main sequence? a low-mass red star
Low-mass and medium-mass stars eventually turn into _______. white dwarfs
What is a spinning neutron star emitting radio waves? pulsar
The sun’s major source of fuel is _____. hydrogen

When do high mass stars leave the main sequence?

High-mass stars, like all stars, leave the Main Sequence when there is no more hydrogen fuel in their cores. The first few events are similar to those in lower-mass stars – first a hydrogen shell, then a core burning helium to carbon, surrounded by helium-and hydrogen-burning shells. 12.4 Evolution of Stars More Massive than the Sun

How long does it take for a main sequence star to evolve?

This whole process takes several million years but, in the end, the main sequence star becomes either a red supergiant or a red giant, depending on its initial mass. Notice that where and how fast a star evolves is determined by its main sequence mass. Hot, massive O stars age quickly and become red supergiants.

How are high mass stars evolve into blue supergiants?

High-mass stars become red supergiants, and then evolve to become blue supergiants. It’s fusing helium into carbon and oxygen. Then, it begins to fuse those into neon and so on.

Why does a high mass star have a small core?

High mass stars have a very small core surrounded by a large envelope. The energy released from the stellar core heats the stellar interior producing the pressure that holds a star up. If stars were like cars, then they would burn their core hydrogen until they ran out and the star would fade out. But fusion converts hydrogen into helium.