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What is the maximum size of a white dwarf?
The maximum size of a white dwarf is about 1.4 times the mass of the Sun, known as the Chandrasekhar limit. If a white dwarf exceeds this limit, it can collapse further and ignite as a supernova.
What is Chandrasekhar's Limit?
The Chandrasekhar Limit, also called the Chandrasekhar mass, is the point beyond which the "electron degeneracy pressure" within a white dwarf star no longer balances the star's own gravity. It places an upper limit on the possible mass of a white dwarf. If a white dwarf's gravity pulls material away from a neighboring star, adding it to the white dwarf and increasing its mass, the Chandrasekhar mass (roughly 1.4 times the mass of our Sun) can eventually be reached and surpassed. When the balance between electron degeneracy pressure and gravity ends, the force of gravity rapidly collapses the white dwarf, and the resulting pressure and density result in a violent outward explosion that destroys the white dwarf. In Astronomy, this is known as a type Ia supernova. There have been a small number of type Ia supernovae (supernova "2007if" was the second known) which were believed to occur at masses significantly above the Chandrasekhar limit. The prevailing theory is that in these cases, two white dwarves collided, resulting in the limit being abruptly exceeded.
When does a nova event occurs if a white dwarf accepts material from a nearby?
A nova event occurs when a white dwarf in a binary system accepts material from a nearby companion star, causing a runaway nuclear fusion explosion on the surface of the white dwarf. This explosion results in a sudden increase in brightness that can last for several days to a few weeks.
What happens if the mass of a white dwarf reaches the 1.4 solar mass limit?
If the mass of a white dwarf reaches the 1.4 solar mass limit, it will no longer be able to support itself against gravity through electron degeneracy pressure. This will trigger a runaway fusion reaction of carbon and oxygen, leading to a supernova explosion known as a Type Ia supernova.
What is a vampire star?
A vampire star is any star that "sucks" matter from a close neighbouring star. Typically, it will be a close binary pair, where a white dwarf draws matter off of it's neighbour - normally a red giant - and accretes the matter onto it's surface. This continues until a critical mass is achieved - the Chandrasekhar limit - whereupon the white dwarf explodes as a type Ia supernova.
What is the maximum size of a white dwarf?
The maximum size of a white dwarf is about 1.4 times the mass of the Sun, known as the Chandrasekhar limit. If a white dwarf exceeds this limit, it can collapse further and ignite as a supernova.
What is the upper limit to the mass of a white dwarf?
The upper limit to the mass of a white dwarf is about 1.4 times the mass of the Sun, known as the Chandrasekhar limit. Beyond this point, the white dwarf may collapse and explode in a supernova event.
What is Chandrasekhar's Limit?
The Chandrasekhar Limit, also called the Chandrasekhar mass, is the point beyond which the "electron degeneracy pressure" within a white dwarf star no longer balances the star's own gravity. It places an upper limit on the possible mass of a white dwarf. If a white dwarf's gravity pulls material away from a neighboring star, adding it to the white dwarf and increasing its mass, the Chandrasekhar mass (roughly 1.4 times the mass of our Sun) can eventually be reached and surpassed. When the balance between electron degeneracy pressure and gravity ends, the force of gravity rapidly collapses the white dwarf, and the resulting pressure and density result in a violent outward explosion that destroys the white dwarf. In Astronomy, this is known as a type Ia supernova. There have been a small number of type Ia supernovae (supernova "2007if" was the second known) which were believed to occur at masses significantly above the Chandrasekhar limit. The prevailing theory is that in these cases, two white dwarves collided, resulting in the limit being abruptly exceeded.
What is the Chandra analysis?
Hopefully you mean the Chandrasekhar Limit or Chandra Limit (Named after the Indian born Astrophysicist bearing that name) which states the maximum mass of a White Dwarf Star. If the Star exceeds this limit, then gravity will overcome pressure within the Star and it will collapse into a Neutron Star or Black Hole. See link for further information
What is a Chandrasekhar mass and how does it relate to a supernova?
A Chandrasekhar mass is the maximum mass limit (about 1.4 times the mass of the Sun) that a white dwarf star can have before it collapses under its own gravity and triggers a supernova explosion. When a white dwarf accretes matter from a companion star or merges with another white dwarf, exceeding the Chandrasekhar mass, it can collapse and explode as a Type Ia supernova.
When does a nova event occurs if a white dwarf accepts material from a nearby?
A nova event occurs when a white dwarf in a binary system accepts material from a nearby companion star, causing a runaway nuclear fusion explosion on the surface of the white dwarf. This explosion results in a sudden increase in brightness that can last for several days to a few weeks.
What happens if the mass of a white dwarf reaches the 1.4 solar mass limit?
If the mass of a white dwarf reaches the 1.4 solar mass limit, it will no longer be able to support itself against gravity through electron degeneracy pressure. This will trigger a runaway fusion reaction of carbon and oxygen, leading to a supernova explosion known as a Type Ia supernova.
What happens if my suitcase exceeds the weight limit?
If your suitcase exceeds the weight limit, you may have to pay an additional fee or remove items to meet the limit. Airlines have specific weight restrictions for luggage to ensure safe and efficient travel.
Why did Subramanyan Chandrasekhar win The Nobel Prize in Physics in 1983?
The Nobel Prize in Physics 1983 was divided equally between Subramanyan Chandrasekhar for his theoretical studies of the physical processes of importance to the structure and evolution of the stars and William Alfred Fowler for his theoretical and experimental studies of the nuclear reactions of importance in the formation of the chemical elements in the universe.
What does Coordination of Benefits mean?
We have coordination of benefits with Sunlife Assurance. What happens if I exceed my yearly limit of physiotherapy - does my spouse's insurance will pay for the amount above the limit and what is his limit then and if it will effect his yearly allowance or not. Also if he exceeds his limit, what happens then?
What is the supernovae trigger model?
The supernova trigger model proposes that the explosion of a white dwarf in a binary star system can be triggered by the accretion of material from its companion star. As the white dwarf gains mass, it eventually reaches a critical limit, known as the Chandrasekhar limit, leading to a runaway nuclear fusion reaction and resulting in a supernova explosion.
What is the only way that a white dwarf can suddenly explode?
By accretion of hydrogen from a nearby star which ignites and starts nuclear fusion in a runaway manner. The explosion is only on the surface of the white dwarf - this is a nova [See related question] If however, it accretes enough hydrogen to push it's mass over the Chandrasekhar limit [See related link] of about 1.38 solar masses, the whole white dwarf will explode as a supernova type Ia [See related link]
