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A Quasar is a powerfully energetic and distant galaxy with an active galactic nucleus surrounding a super massive black hole. Quasars show where massive black holes are growing rapidly (via accretion). These black holes grow in step with the mass of stars in their host galaxy.
Therefore there are going to billions or trillions of stars - many more than our own galaxy (~400 billion).
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How many quasars are in a galaxy?
No more than one, we think. Quasars are so distant that it is difficult to distinguish details about their parent galaxies.
Why are there no quasars left?
Quasars still exist.
Are quasars part of your solar system?
No. Quasars are at the centers of distant galaxies.
Does the existence of quasars support the Big Bang theory?
Not the existence of quasars, but the fact that all quasars are distant from us. The best explanation for what we observe when we see quasars is that they are super-massive black holes in early galaxies, burning up solar "fuel" so rapidly that they eventually run out. We do not observe any quasars near to us, so the conditions that allowed quasars to form must have existed only several billion years ago. If our Universe has not changed its basic structure and density over the last 15 billion years or so, then the conditions that would allow quasars would allow them to exist at any time over that span. This would mean that there should be just as many quasars close to us as there are far from us. But we just don't see that. As is the case with many of the things we see, this is easy to explain via Big Bang Cosmology but almost impossible to explain with any alternative.
What do astronomers use to study quasars?
Scientists use radio waves to study distant quasars because quasars emit large amounts of radio waves but not much visible light.
How many quasars are in a galaxy?
No more than one, we think. Quasars are so distant that it is difficult to distinguish details about their parent galaxies.
Why are there no quasars left?
Quasars still exist.
Are distant objects in space called quarks or quasars?
quasars
Are quasars part of your solar system?
No. Quasars are at the centers of distant galaxies.
How a quasars are formed?
Quasars are thought to be distant super-massive black holes.
What year were quasars first discovered?
The first quasars were discovered in the 1950's
Are quasars the size of the solar system?
Yes. Quasars are the size of the solar system.
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 all quasars have host galaxies in them?
Quasars do not have galaxies in them, quasars are at the hearts of galaxies. All quasars are located in galaxies, as a quasar involves massive amounts of material falling into a supermassiv black hole. Neither of these can be found outside of a galaxy.
Does the existence of quasars support the Big Bang theory?
Not the existence of quasars, but the fact that all quasars are distant from us. The best explanation for what we observe when we see quasars is that they are super-massive black holes in early galaxies, burning up solar "fuel" so rapidly that they eventually run out. We do not observe any quasars near to us, so the conditions that allowed quasars to form must have existed only several billion years ago. If our Universe has not changed its basic structure and density over the last 15 billion years or so, then the conditions that would allow quasars would allow them to exist at any time over that span. This would mean that there should be just as many quasars close to us as there are far from us. But we just don't see that. As is the case with many of the things we see, this is easy to explain via Big Bang Cosmology but almost impossible to explain with any alternative.
What do astronomers use to study quasars?
Scientists use radio waves to study distant quasars because quasars emit large amounts of radio waves but not much visible light.
Which was discovered most recently DNA atomic power radio waves or pulsars and quasars?
pulsar and quasars
