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Quasars are some of the most distant and luminous bodies we can observe. Since we measure them to be incredibly far from our own galaxy, in the order of billions of light-years, astronomers believe that they are several billions of years old as their light would have taken that long to travel to us. Astronomers think that they may be young galaxies as the appear to be incredibly bright balls of accreting gas that probably have black holes at their cores. Because quasars give off characteristic pulses of light at regular intervals, astronomers use them as "standard candles" to measure the redshifts (how quickly they are moving away from us) of other extremely distant objects.
Wiki User
∙ 8y ago
Wiki User
∙ 14y agoQuasars are currently believed to be caused by active gigantic black holes, "active" meaning that they are seen when they engulf larger quantities of matter.
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Are quasars the most unusual type of active galaxy?
Quasars are the unusual type of active galaxy in the universe.
How did the discovery of quasars disprove the steady state theory?
The steady state theory was disproved by observations in the sense that at larger distances, the Universe doesn't look the same as nearby. This means the Universe has changed over time, directly contradicting the main assumption of the steady state theory. - I am not sure to what extent quasars were involved, but quasars do tend to show up more frequently at greater distances, i.e., in the early Universe.
What are quasars and where are they found in the universe?
All quasars are located at a great distance from us. Of the quasars discovered, they range from between 780 million and 28 billion light years away. Because of these distances and the velocity of light, we are seeing them early on in the creation of the Universe. They are very rare they have only found about 20 or so. See related link for more information.
Can energy be produce from a black hole?
Sure; please note that black holes are among the brightest objects in the Universe. For more details, do some reading about quasars. Briefly, some quasars shine as bright as a hundred galaxies - and a quasar is a black hole.
Why are there no quasars left?
Quasars still exist.
Are quasars the most unusual type of active galaxy?
Quasars are the unusual type of active galaxy in the universe.
What are the release dates for The Universe - 2007 Pulsars and Quasars 4-10?
The Universe - 2007 Pulsars and Quasars 4-10 was released on: USA: 27 October 2009
How many baby quasars are there in the universe?
Quasars are brightly glowing powerful "engines" of the Universe. Usually they surround black holes and glow when material funnels in. According to Astronomer Maarten Schmidt there are 100 times less quasars now than 10 billion years ago.
Do Quasers emit light?
Yes, quasars are the most luminous objects in the universe.
Are there a lot of quasars in the universe?
There are about 12,000 known quasars today. I'm sure that as our telescopes get better, that number will go up. As a guess, I would estimate a lot.
What is the new discovery of the universe?
A huge structure of pulsars/quasars which defies the cosmological constant.
How long have most quasars that are very distant implies that they were formed?
The fact that most quasars are very distant means they were like that when the Universe was quite a bit younger than it is today.
How did the discovery of quasars disprove the steady state theory?
The steady state theory was disproved by observations in the sense that at larger distances, the Universe doesn't look the same as nearby. This means the Universe has changed over time, directly contradicting the main assumption of the steady state theory. - I am not sure to what extent quasars were involved, but quasars do tend to show up more frequently at greater distances, i.e., in the early Universe.
What are quasars and where are they found in the universe?
All quasars are located at a great distance from us. Of the quasars discovered, they range from between 780 million and 28 billion light years away. Because of these distances and the velocity of light, we are seeing them early on in the creation of the Universe. They are very rare they have only found about 20 or so. See related link for more information.
What emits extremely large quantities of energy?
Quasars emit more energy than anything else in the universe. Quasars are massive black holes at the cores of some galaxies, swallowing matter and stars and ejecting them out collimated bipolar jets of matter and radiation which stretch out hundreds of thousands of light years. Since there are quasars in galaxies close by, these indicate the evolution of our universe.
Are quasars moving towards Earth at very high velocity?
No. Pretty much everything in the Universe is moving away from pretty much everything else in the Universe. This is because the Universe is expanding.
Does a quasar have very little energy?
No. Quasars have the highest energy output of any type of object in the known universe.
