Table of Contents
- 1 What is the final stage of the evolution of a massive star?
- 2 What stops the collapse of the most massive stars at the end of their lives?
- 3 What are the 3 possible final stages of a star?
- 4 Which main sequence stars are the least massive?
- 5 How long does it take for a massive star to evolve?
- 6 What happens when stars reach the red giant phase?
What is the final stage of the evolution of a massive 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.
What is the final fate of the most massive stars?
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 final stage of all stars?
Heavy stars turn into supernovae, neutron stars and black holes whereas average stars like the sun end life as a white dwarf surrounded by a disappearing planetary nebula. All stars, however, follow roughly the same basic seven-stage life cycle, starting as a gas cloud and ending as a star remnant.
What stops the collapse of the most massive stars at the end of their lives?
What the calculations are telling us is that even the force of degenerate electrons cannot stop the collapse of a star with more mass than this. The maximum mass that a star can end its life with and still become a white dwarf—1.4 MSun—is called the Chandrasekhar limit.
What is the final fate of the most massive stars quizlet?
20. A massive star terminates in a brilliant explosion called a supernova. The two possible products of a supernova event are a neutron star or a black hole. Describe the general structure of the Milky Way Galaxy.
What are the 2 possible endings for a massive star?
There are two possible stellar ending scenarios, depending on the star’s original mass. If the star is less than three solar masses, <3. M sun , this is the neutron star limit. If it is a single star ( not part of a binary star system), the star will eventually cool as a large cinder in space.
What are the 3 possible final stages of a star?
What Are the Final Stages in the Life of a Star Similar in Size…
- Star Formation and Main Sequence. Stars are born from intergalactic dust.
- The Red Giant Phase.
- The Second Red Giant Phase.
- The White Dwarf Phase.
Why do massive stars explode?
It’s a balance of gravity pushing in on the star and heat and pressure pushing outward from the star’s core. When a massive star runs out of fuel, it cools off. This causes the pressure to drop. The collapse happens so quickly that it creates enormous shock waves that cause the outer part of the star to explode!
What happens when a star bigger then the sun’s core collapses?
If the core is larger, it will collapse into a black hole. To turn into a neutron star, a star must start with about 7 to 20 times the mass of the Sun before the supernova. Only stars with more than 20 times the mass of the Sun will become black holes.
Which main sequence stars are the least massive?
stars on the main sequence are powered by hydrogen fusion, which takes place in their cores, and the main sequence is just a sequence of mass (faint red stars are the least massive – starting at around one-tenth that of the Sun – and bright blue ones the most – about 20 times).
Why are less massive stars thought to age more slowly than more massive stars?
Why are less massive stars thought to age more slowly than more massive stars, even though less massive stars have much less “fuel”? A less massive star will live longer because it consumes fuel at a slower rate than do more massive stars. Stars are born out of clouds of interstellar matter.
What occurs in a massive star to cause it to explode?
Having too much matter causes the star to explode, resulting in a supernova. As the star runs out of nuclear fuel, some of its mass flows into its core. Eventually, the core is so heavy that it cannot withstand its own gravitational force. The core collapses, which results in the giant explosion of a supernova.
How long does it take for a massive star to evolve?
Massive stars go through these stages very, very quickly. In really massive stars, some fusion stages toward the very end can take only months or even days! This is a far cry from the millions of years they spend in the main-sequence stage. At this stage of its evolution, a massive star resembles an onion with an iron core.
How does the life cycle of a massive star differ from a low mass star?
On the right of the illustration is the life cycle of a massive star (10 times or more the size of our Sun). Like low-mass stars, high-mass stars are born in nebulae and evolve and live in the Main Sequence. However, their life cycles start to differ after the red giant phase. A massive star will undergo a supernova explosion.
Which is the final stage of a star’s life?
For example, the star Antares is an M type supergiant. It has a luminosity 13,000 times that of the Sun. For low mass stars, this is the final stage of their lifetime in which they generate energy via fusion. Once the helium and hydrogen shell fusion uses up all of the available fuel, the star’s life is effectively over.
What happens when stars reach the red giant phase?
Once stars that are 5 times or more massive than our Sun reach the red giant phase, their core temperature increases as carbon atoms are formed from the fusion of helium atoms. Gravity continues to pull carbon atoms together as the temperature increases and additional fusion processes proceed, forming oxygen, nitrogen, and eventually iron.