what is the difference between a black hole and a neutron star?
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A neutron star is the remnant of a star whose mass ranges from 1-3 solar masses. A black hole is the remnant in case the star mass is greater than 3 solar masses.
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One is age: most neutron stars are billions of years old, which means they have plenty of time to cool and spin down.
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Stellar mass black holes form from the collapse of massive stars at the end of their lives. ... They typically have a mass a few times the mass of the sun. Supermassive black holes are found at the centers of galaxies. They typically have mass of millions of Suns.
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Around the singularity, particles and materials are compressed. As matter collapses into a black hole, its density becomes infinitely large because it must fit into a point that, according to equations, is so small that it has no dimensions.
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A black hole is a region of spacetime where gravity is so strong that nothing—no particles or even electromagnetic radiation such as light—can escape from it. ... This temperature is on the order of billionths of a kelvin for black holes of stellar mass, making it essentially impossible to observe.
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Originally Answered: What is the difference between a quasar and a star ? Quasars are star like point sources with immense energy and much greater red shifts, whereas the stars are self illuminating celestial objects with energy outputs much less than that of quasars.
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The major difference between a nova and a supernova is that in a supernova a lot of the object's mass is ejected with the explosion. ... A nova does not destroy its host star whereas a super nova does. Since so much mass is ejected in a supernova it disrupts the star in which it occurs.
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A black hole is a region of spacetime where gravity is so strong that nothing—no particles or even electromagnetic radiation such as light—can escape from it. The theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole.
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Characteristics. Pulsars are rapidly spinning neutron stars, extremely dense stars composed almost entirely of neutrons and having a diameter of only 20 km (12 miles) or less. ... A neutron star is formed when the core of a violently exploding star called a supernova collapses inward and becomes compressed together.
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Neutron stars are extremely dense objects that are formed from the remnants of supernova explosions. ... Determine the greatest possible angular speed it can have so that the matter at the surface of the star on its equator is just held in orbit by the gravitational force.
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Black holes have three "layers": the outer and inner event horizon, and the singularity.
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Most neutron stars are observed as pulsars. Pulsars are rotating neutron stars observed to have pulses of radiation at very regular intervals that typically range from milliseconds to seconds. Pulsars have very strong magnetic fields which funnel jets of particles out along the two magnetic poles.
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No. Stars like the Sun just aren't massive enough to become black holes. Instead, in several billion years, the Sun will cast off its outer layers, and its core will form a white dwarf - a dense ball of carbon and oxygen that no longer produces nuclear energy, but that shines because it is very hot.
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All black holes are about the same size. Black holes actually come in several different sizes which are defined by their mass. ... Dan Evans, an Astrophysicist at NASA Headquarters says, "There's a direct relationship between the beginning of super massive black holes and the beginning of their corresponding galaxy.
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Black holes have three "layers": the outer and inner event horizon, and the singularity. The event horizon of a black hole is the boundary around the mouth of the black hole, past which light cannot escape. Once a particle crosses the event horizon, it cannot leave. Gravity is constant across the event horizon.
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1 Answer. A black hole emits no light while quasars can emit light a trillion times brighter than that of our sun.
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Star Sizes. Stars come in huge range of different sizes. Neutron stars can be just 20 to 40 km in diameter, whereas white dwarf can be very similar in size to Earth's. The largest supergiants, on the other hand, can be more than 1500 times larger than our Sun.