Table of Contents
What is the life cycle of a massive star?
as our sun (just on a larger scale) upto the Main Sequence stage, Then the massive stars expand into a Red Supergiant, Explode into a Supernova, Then turn into a Black Hole or a Neutron Star.
What are the 7 stages of a massive star?
All stars, irrespective of their size, follow the same 7 stage cycle, they start as a gas cloud and end as a star remnant.
- 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.
What are the 5 stages of a massive star?
The formation and life cycle of stars
- A nebula. A star forms from massive clouds of dust and gas in space, also known as a nebula.
- Protostar. As the mass falls together it gets hot.
- Main sequence star.
- Red giant star.
- White dwarf.
- Supernova.
- Neutron star or black hole.
What are the stages in the life cycle of a star?
A smaller star, like the Sun, will gradually cool down and stop glowing. During these changes it will go through the planetary nebula phase, and white dwarf phase. After many thousands of millions of years it will stop glowing and become a black dwarf. A massive star experiences a much more energetic and violent end.
What is the third step in the life cycle of a massive star?
Stage 3 – At this temperature, nuclear reactions in which hydrogen fuses to form helium can start. Stage 4 – The star begins to release energy, stopping it from contracting even more and causes it to shine. It is now a Main Sequence Star.
What happens in a massive star?
The ultimate fate of a star depends on its initial mass. A massive star ends with a violent explosion called a supernova. The matter ejected in a supernova explosion becomes a glowing supernova remnant.
What is the order of the high mass stars?
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.
Which is the first stage in the life cycle of a massive star quizlet?
Stars start out with a nebula, which is a large cloud of gas and dust that soon collect into a star. This causes the first and longest stage of a stars life, the main sequence. After this stage, stars expand into a red giant, the shortest stage of a stars life.
What is the massive star?
Although R136a1 is the most massive known star, it is not the largest, since it only stretches about 30 times the radius of our sun. The largest known star is UY Scuti, a hypergiant with a radius somewhere around 1,700 times larger than the sun. Its mass, however, is only 30 times that of our nearest star.
What do massive stars end their life cycle as?
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 are the life stages of a high mass star quizlet?
Terms in this set (7)
- Protostar. A star system forms when a cloud of interstellar gas collapses under gravity.
- Blue Main-Sequence Star.
- Red Supergiant.
- Helium-burning Supergiant.
- Multiple Shell-burning Supergiant.
- Supernova.
- Neutron Star or Black Hole.
What are the 4 stages of the life of a star quizlet?
What are the stages of a star’s life cycle? The stages of a stars life cycle are main sequence, red giant and white dwarf. Stars start out with a nebula, which is a large cloud of gas and dust that soon collect into a star. This causes the first and longest stage of a stars life, the main sequence.
What is the third stage of a star?
How is a massive star formed?
Stars form within dense clouds of dust and gas located in the interstellar medium of a galaxy. Gravity causes these clouds to collapse in on themselves, with small disturbances within a cloud causing denser clumps of matter to form.
How long do massive stars live?
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.
How do most massive stars end their life?
The events at the end of a star’s life depend on its mass. Really massive stars use up their hydrogen fuel quickly, but are hot enough to fuse heavier elements such as helium and carbon. Once there is no fuel left, the star collapses and the outer layers explode as a ‘supernova’.
What are the end stages of high mass stars?
The final fate of a very massive star, whether it explodes as core collapse supernova, as pair instability supernova, as black-hole accretiondriven supernova, as gamma-ray burst, or just collapses to a black hole, depends on how much mass the star has left when it reached the end of its evolution.
What is the first stage of the life cycle of a star for all stars?
The gas in the nebula begins to glow. This is the first step in the life cycle of a star. It is called a protostar. This chemical change gives off a large amount of energy in the form of heat.
Which is a possible sequence in the life cycle of a massive star quizlet?
The stages of a stars life cycle are main sequence, red giant and white dwarf.