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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.If the surviving core is between 1.5 – 3 solar masses it contracts to become a a tiny, very dense Neutron Star. If the core is much greater than 3 solar masses, the core contracts to become a Black Hole.
- Star Formation and Main Sequence. Stars are born from intergalactic dust. …
- The Red Giant Phase. …
- The Second Red Giant Phase. …
- The White Dwarf Phase.
- 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.
- 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 is the end stage of a massive star with a core of 1.4 3 solar masses in size?
If the surviving core is between 1.5 – 3 solar masses it contracts to become a a tiny, very dense Neutron Star. If the core is much greater than 3 solar masses, the core contracts to become a Black Hole.
What are the 3 final stages of a star?
- Star Formation and Main Sequence. Stars are born from intergalactic dust. …
- The Red Giant Phase. …
- The Second Red Giant Phase. …
- The White Dwarf Phase.
High Mass Stars: Crash Course Astronomy #31
Images related to the topicHigh Mass Stars: Crash Course Astronomy #31
What are the 5 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 stages of a high mass star in order?
- 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 is the final stage of star?
A planetary nebula is the final stage of a Sun-like star. As such, planetary nebulas allow us a glimpse into the future of our own solar system. A star like our Sun will, at the end of its life, transform into a red giant.
What are the 7 stages of a star?
- STAGE 1: AN INTERSTELLAR CLOUD.
- STAGE 2: A COLLAPSING CLOUD FRAGMENT.
- STAGE 3: FRAGMENTATION CEASES.
- STAGE 4: A PROTOSTAR.
- STAGE 5: PROTOSTELLAR EVOLUTION.
- STAGE 6: A NEWBORN STAR.
- STAGE 7: THE MAIN SEQUENCE AT LAST.
When the mass of a star becomes more than 1.4 times the solar mass it would cease to be?
The Chandrasekhar Limit
If the mass of the stellar remnant exceeds 1.4 solar masses then the electron degenerate pressure is insufficient to withstand the force of gravity. The core will thus continue to collapse and form either a neutron star or a black hole.
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The Life of a Star
Stage 5 – A star of one solar mass remains in main sequence for about 10 billion years, until all of the hydrogen has fused to form helium. Stage 6 – The helium …
End states of stars | Britannica
When the mass of the remnant core lies between 1.4 and about 2 solar masses, it apparently becomes a neutron star with a density more than a million times …
The Death of Stars II: High Mass Stars – Australia Telescope …
They range in mass from a lower value equal to the Chandrasekhar Limit of 1.4 solar masses up to about 3 solar masses. This upper limit is not well-defined and …
Stellar Evolution
Stars whose core is less than 1.4 solar masses (the Chandrasekhar limit) will leave behind a white dwarf, the size of which is inversely related to its mass.
What is the final state of the most massive stars?
A massive star ends with a violent explosion called a supernova. The matter ejected in a supernova explosion becomes a glowing supernova remnant.
What are the 10 stages of a star?
- 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 is the third stage of a high mass star?
Stage 3. Over the next million years or so, a series of nuclear reactions occur, forming different elements in shells around the iron core.
THE LIFE CYCLE OF A HIGH MASS STAR (simplified) | Astronomy
Images related to the topicTHE LIFE CYCLE OF A HIGH MASS STAR (simplified) | Astronomy
What is the last stage of stellar evolution in high mass stars?
Eventually, the star ends up as a dense white dwarf, which slowly cools and dims and cools and dims. High-mass stars, on the other hand, experience a short but exciting life, which ends with a bang, not a whimper. The key is the core of the star and the nuclear reactions which occur therein.
What are the options for a high mass star at the end of its life?
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 is the final phase of the Sun?
All stars die, and eventually — in about 5 billion years — our sun will, too. Once its supply of hydrogen is exhausted, the final, dramatic stages of its life will unfold, as our host star expands to become a red giant and then tears its body to pieces to condense into a white dwarf.
What is the end state of a star with a core of 2 solar masses?
Neutron stars. When the mass of the remnant core lies between 1.4 and about 2 solar masses, it apparently becomes a neutron star with a density more than a million times greater than even that of a white dwarf.
What is the protostar stage?
A protostar is a very young star that is still gathering mass from its parent molecular cloud. The protostellar phase is the earliest one in the process of stellar evolution. For a low-mass star (i.e. that of the Sun or lower), it lasts about 500,000 years.
What is the order of a stars life cycle?
Than Our Sun…
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.
Which is the first stage in the life cycle of a massive star?
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.
What is supernova and protostar?
A supernova (/ˌsuːpərˈnoʊvə/; pl. supernovae /-viː/ or supernovas; abbr. SN and SNe) is a powerful and luminous stellar explosion. This transient astronomical event occurs during the last evolutionary stages of a massive star or when a white dwarf is triggered into runaway nuclear fusion.
Astronomy – Ch. 21: Life Death of a High Mass Star (3 of 11) Red Giant Stage: High Mass Stars
Images related to the topicAstronomy – Ch. 21: Life Death of a High Mass Star (3 of 11) Red Giant Stage: High Mass Stars
When a massive star dies greater than 8 times the mass of the Sun which two stellar remnants might it leave behind?
The stars that are massive enough to go supernova are rare: only about 0.1-0.2% of all stars are this massive, and they will leave behind either neutron star or black hole remnants.
What is the likely final fate of a star of 15 solar masses when it is on the main sequence?
What is the likely final fate of a star of 15 solar masses when it is on the main sequence? The star will collapse and become a black hole.
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