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 are the stages of a high-mass stars life cycle from birth to death?
stars spend most of their lives on the
main sequence
fusing hydrogen gas to helium gas. stars eventually swell up to form a red giant star. stars like the Sun end their lives as planetary nebulae and white dwarfs.
What is the life cycle of a high-mass star?
High-mass stars have
lives of 10 million years
, versus 10 to 50 billion years or more for low-mass stars. At the end of a high-mass star’s fusion process, iron composes the star’s core. No nuclear fusion of iron is possible out of a high-mass star core, which has the same mass as our entire Sun.
How many stages does a high-mass star have?
A star’s life cycle is determined by its mass–the larger its mass, the shorter its life. High-mass stars usually have
five stages
in their life cycles.
Which stage comes first in the life cycle of a high-mass star?
Stage 1- Stars
are born in a region of high density Nebula, and condenses into a huge globule of gas and dust and contracts under its own gravity. This image shows the Orion Nebula or M42 . Stage 2 – A region of condensing matter will begin to heat up and start to glow forming Protostars.
What comes after 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. The core of a massive star that has more than roughly 3 times the mass of our Sun after the explosion will do something quite different.
What happens in a high mass star?
High mass stars go through a similar process to low mass stars in the beginning, except that it all happens much faster. They have a
hydrogen fusion core
, but much of the hydrogen fusion happens via the CNO cycle. … If the star is massive enough, the neutron star will collapse further and form a black hole.
What will happen after the explosion of a high mass star?
After the supernova explosion, the life of a massive star comes to an end. … The supernova explosion
produces a flood of energetic neutrons that barrel through the expanding material
. These neutrons can be absorbed by iron and other nuclei where they can turn into protons.
What are the three end stages of stars?
- White Dwarf.
- Neutrons Star.
- Black Hole.
How long do stars live for?
Generally, the more massive the star, the faster it burns up its fuel supply, and the shorter its life. The most massive stars can burn out and explode in a supernova after only
a few million years of fusion
. A star with a mass like the Sun, on the other hand, can continue fusing hydrogen for about 10 billion years.
What are the six stages of a high mass star?
- 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 are the 7 stages of a high mass star?
- Giant Gas Cloud. A star originates from a large cloud of gas. …
- Protostar. When the gas particles in the molecular cloud run into each other, heat energy is produced. …
- T-Tauri Phase. …
- Main Sequence. …
- Red Giant. …
- The Fusion of Heavier Elements. …
- Supernovae and Planetary Nebulae.
What are the 5 stages of a high mass star?
- Giant Gas Cloud. A star originates from a large cloud of gas.
- Protostar.
- T-Tauri Phase.
- Main Sequence.
- Red Giant.
- The Fusion of Heavier Elements.
- Supernovae and Planetary Nebulae.
Do stars lose mass over time?
Stellar mass loss is a phenomenon observed in stars.
All stars lose some mass over their lives at widely varying rates
. … Stellar mass loss can also occur when a star gradually loses material to a binary companion or into interstellar space.
How long does a high mass star stay on the main sequence?
A higher-mass star may have more material, but it burns through it faster due to higher core temperatures caused by greater gravitational forces. While the sun will spend about 10 billion years on the main sequence, a star 10 times as massive will stick around for only
20 million years
.
What color of star is the hottest?
White stars are hotter than red and yellow.
Blue stars
are the hottest stars of all.
