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What is pulsars how it formed?

Updated: 8/17/2019
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When a star stops shining, it will undergo a gravitational collapse - it can no longer maintain its size. Stars below a certain mass limit become white dwarves - with a diameter of a few thousand kilometers, and a density of some tons for a single teaspoonfull of matter. Stars above this limit become a neutron star (a.k.a. "pulsar"). In this case, the diameter is about 20 km.; the matter gets compressed to the density of an atomic nucleus - some millions of tons in the volume of a teaspoonfull. Individual atoms no longer exist, in most of the neutron star.

Above yet another mass limit, the star will convert to a black hole.

When a star stops shining, it will undergo a gravitational collapse - it can no longer maintain its size. Stars below a certain mass limit become white dwarves - with a diameter of a few thousand kilometers, and a density of some tons for a single teaspoonfull of matter. Stars above this limit become a neutron star (a.k.a. "pulsar"). In this case, the diameter is about 20 km.; the matter gets compressed to the density of an atomic nucleus - some millions of tons in the volume of a teaspoonfull. Individual atoms no longer exist, in most of the neutron star.

Above yet another mass limit, the star will convert to a black hole.

When a star stops shining, it will undergo a gravitational collapse - it can no longer maintain its size. Stars below a certain mass limit become white dwarves - with a diameter of a few thousand kilometers, and a density of some tons for a single teaspoonfull of matter. Stars above this limit become a neutron star (a.k.a. "pulsar"). In this case, the diameter is about 20 km.; the matter gets compressed to the density of an atomic nucleus - some millions of tons in the volume of a teaspoonfull. Individual atoms no longer exist, in most of the neutron star.

Above yet another mass limit, the star will convert to a black hole.

When a star stops shining, it will undergo a gravitational collapse - it can no longer maintain its size. Stars below a certain mass limit become white dwarves - with a diameter of a few thousand kilometers, and a density of some tons for a single teaspoonfull of matter. Stars above this limit become a neutron star (a.k.a. "pulsar"). In this case, the diameter is about 20 km.; the matter gets compressed to the density of an atomic nucleus - some millions of tons in the volume of a teaspoonfull. Individual atoms no longer exist, in most of the neutron star.

Above yet another mass limit, the star will convert to a black hole.

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14y ago

When a star stops shining, it will undergo a gravitational collapse - it can no longer maintain its size. Stars below a certain mass limit become white dwarves - with a diameter of a few thousand kilometers, and a density of some tons for a single teaspoonfull of matter. Stars above this limit become a neutron star (a.k.a. "pulsar"). In this case, the diameter is about 20 km.; the matter gets compressed to the density of an atomic nucleus - some millions of tons in the volume of a teaspoonfull. Individual atoms no longer exist, in most of the neutron star.

Above yet another mass limit, the star will convert to a black hole.

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Related questions

Flickering neutron stars formed in supernovas?

pulsars


Where are pulsars located in space?

Pulsars are located every where around the universe keep in mind pulsars are neutron stars so that means they were formed by large stars that have aged and died out


When did The Pulsars end?

The Pulsars ended in 2000.


When was The Pulsars created?

The Pulsars was created in 1994.


How are pulsars related to supernovas?

Pulsars are created by supernovae.


How do you use pulsars in a sentence?

Pulsars are studied by astronomers.


How are pulsars formed?

Pulsars are rapidly rotating neutron stars that emit beams of electromagnetic energy. Neutron stars form when the core of a massive star collapses and goes supernova leaving behind a neutron star which will begin rotating and releasing energy.


How do pulsars accelerate to dizzying rotational speeds?

When a neutron star is first formed (Pulsars are just neutron stars - see related question) it retains most of its angular momentum. As it now only has a tiny fraction of its "parent's" radius, a neutron star is formed with a very high rotation speed. It's similar to watching ice skaters spinning with their arms out and then suddenly bringing them to their sides.


Are pulsars found in supernova remnants.?

Yes. All pulsars and neutron stars are the remnants of a supernova explosion.


What has the author Marta Burgay written?

Marta Burgay has written: 'Radio pulsars' -- subject(s): Pulsars, Congresses


What makes the Crab pulsar somewhat unusual among pulsars in general?

Apart from being fairly young, it's one of the few to have a planet orbiting it. [Though this observation has yet to be authenticated] It could also be one of the few pulsars where it's age is confirmed as the remnant was formed from SN1054 [See related question]


Are pulsars a kind of neutron star?

Pulsars are not only a kind of neutron star, they are neutron stars. See related question.