Stars are large spheres composed mainly of hydrogen. Heat and pressure at the cores of as star fuses hydrogen atoms together to produce helium and release energy. Some older stars fuse heavier elements.
A quasar consists of a supermassive black hole pulling in more matter than it can swallow. in-falling matter is heated to billions of degrees, hotter than any star, and excess matter is ejected in jets near the poles at nearly the speed of light. A quasar produces much more energy than any star.
A quasar evolves into a galaxy as it exhausts its fuel supply of supermassive black holes at its core. Once the black hole stops accreting matter and emitting large amounts of energy, the quasar phase ends, and it becomes a mature galaxy.
Not "the" quasar, but "a" quasar - there are many. A quasar is associated with a supermassive black hole, and those are generally at the center of galaxies.
A type of galaxy is probably the answer you are looking for. However, a quasar is actually an active galactic nucleus.
A quasar is not a galaxy. A quasar is an intense energy source associated with a supermassive black hole that is actively feeding. All quasars are located at the centers of galaxies.
A distant galaxy that appears as bright as a near star.
That must refer to a quasar - however, the claim that it is "a thousand times brighter" is somewhat doubtful. A quasar may seem brighter than it is, (a) because of gravitational lensing, and (b) because the jet is pointed towards us. In any case, a quasar is a small region in a galaxy, which is often brighter than an entire normal galaxy.
No. A Quasar is a Black hole in center of some Galaxies. I think our Galaxy has one of them.
No, not in the slightest sense. A quasar, pulsar, and galaxy are three very different things.
Astronomers have detected a quasar in a distant galaxy.
Quite a bit more than that. A typical quasar is several times brighter than an entire galaxy that has no quasar.Quite a bit more than that. A typical quasar is several times brighter than an entire galaxy that has no quasar.Quite a bit more than that. A typical quasar is several times brighter than an entire galaxy that has no quasar.Quite a bit more than that. A typical quasar is several times brighter than an entire galaxy that has no quasar.
quasar
A quasar evolves into a galaxy as it exhausts its fuel supply of supermassive black holes at its core. Once the black hole stops accreting matter and emitting large amounts of energy, the quasar phase ends, and it becomes a mature galaxy.
quasar
A quasar will have the brightest galactic centre.
Not "the" quasar, but "a" quasar - there are many. A quasar is associated with a supermassive black hole, and those are generally at the center of galaxies.
A type of galaxy is probably the answer you are looking for. However, a quasar is actually an active galactic nucleus.
Scientists have only recently decided that a quasar is a galaxy with a relatively new supermassive black hole that has "recently" formed. This isn't certain, by any means; only a few years ago, there was considerable debate about what, exactly, a quasar was. As small as a star, brighter than a galaxy; nothing seemed to make sense.