it's thought that they are the beginnings of a galaxy.
they are extremely bright and far away.
they give off an unbelievably high amount of electromagnetic energy (radio waves, infrared, visible light, x-rays, gamma rays...)
2007-04-30 12:53:22
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answer #1
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answered by mindlesskracka 2
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When a large star, that has a mass of about 8-20 solar masses (1 solar mass is the mass of our Sun), dies, it explodes. It throws off its outer layers and all that's left is an extremely dense lump of matter that weighs about 1 solar mass, but is only 15-20 kilometres across. That's like squashing our Sun 50000 times smaller than it's current size. This lump is called a neutron star. Its gravity is extremely strong because of its density, so if you get trapped on one, you'll never escape. A quasar is a neutron star that spins around. Different quasars rotate at different speeds, the fastest one ever found was turning at an amazing 600 rotations per second. Pulsars emit light in two cones, so if one of them is pointing at you, you can see the pulsar. If there are no cones pointing at you, you can't see the pulsar.
2007-04-30 13:34:56
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answer #2
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answered by astronomy713 1
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A Quasar is an fairly bright merchandise on the fringe of our universe with the arrival of a superstar even as seen through a telescope. It emits enormous quantities of ability, more advantageous ability than one hundred universal galaxies mixed. The call comes from a shortening of quasi-stellar radio source (QSR). present day theories carry that quasars are one type of energetic galactic nuclei (AGN). Many astronomers believe supermassive black holes might want to lie on the midsection of those galaxies and ability their explosive ability output. in a unmarried 2d, a widespread quasar releases sufficient ability to fulfill the electric powered ability needs of Earth for the subsequent billion years. that is known through many astronomers that quasars are the most distant gadgets yet detected interior the Universe. With the enormous quantities of ability a quasar emits, it may be 1000 billion circumstances brighter than our own sunlight. because of this, they regularly drown out the gentle from all different stars interior of a similar galaxy. yet, regardless of this, they don't look to be seen to the bare eye. Quasars were first detected interior the Nineteen Sixties as supplies of radio waves. as well to radio waves and visual gentle, quasars also emit ultraviolet rays, infrared waves, X-rays, and gamma-rays. maximum quasars are more advantageous than our image voltaic equipment. A quasar is about a million kiloparsec in width. because of their distance, after we view quasars, we are seeing gentle from very early interior the existence of our universe, giving scientists options about the early ranges of the Universe.
2016-11-23 18:30:13
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answer #3
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answered by giffin 4
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A quasar is a highly energetic galaxy. A supermassive black hole (most likely) powers bipolar jets of matter and radiation that stream outward hundreds of thousands to millions of light years.
A few of these radio galaxies are aimed somewhat towards us, making them appear very bright.
The nearest quasar is some three quarters of a billion light years away. Most of them existed at a much earlier stage of the universe, when it was only a few billion years old. These galaxies probably shine only a few billion years before they burn out.
2007-04-30 12:52:14
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answer #4
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answered by Anonymous
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I remember the theory that they are actually highly polarizd radio waves with high anti gravity that is stretching the universe out and pulling the galaxies with it.
then again if i am wrong , i do know there used to be a television set called a quasar
2007-04-30 13:28:08
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answer #5
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answered by George G 5
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A quasar is the very bright centre in some distant galaxies, thought to be powered by a supermassive black hole.
Some scientists believe that galaxies with active galactic nuclei (AGN) are also quasars but we see them at a different angle and so originally assumed they were different phenomenon.
2007-04-30 12:58:41
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answer #6
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answered by Anonymous
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A quasar is the highly luminous core of a distant galaxy. It is thought to be caused by the ultra-hot gas circulating around a black hole at the galaxy's center.
2007-04-30 14:06:24
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answer #7
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answered by zahbudar 6
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A massive space that came to rest at a Massive -0 inches of vacuum, where by particles inside can be charged and un-charged.....This makes for a perfect working Universe.
2007-04-30 13:10:11
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answer #8
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answered by Anonymous
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