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How does the brightness of a quasar compare with that of a large galaxy?
Wiki User
∙ 12y ago
I assume when you mean brightness, you mean apparent magnitude as opposed to absolute magnitude.
The quasar 3C 273 has an apparent magnitude of about 12.8 whereas the brightest galaxy - the Large Magellanic Cloud has an apparent magnitude of 0.9.
However, in absolute magnitudes, 3C 273 has an absolute magnitude of about -26.7 very similar to our own Sun.
Wiki User
∙ 12y ago
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Is a quasar is a galaxy shaped like a flattened ball?
It could be, but the definition quasi-star depends on the radiation output, NOT the shape.
What is evidence that a quasar is distant?
a large redshift in the spectrum of the quasar.
How do quasars interact with other things in the universe?
A quasar interacts with other object primarily through the gravitational force it exerts and the radiation it emits.At the center of a quasar is a massive black hole which drives a large accretion disk of matter circulating around it.The quasar is the combination of the back hole and the accretion disk. These lie in the center of a galaxy.The gravity of the conglomerate is large and has a corresponding influence on the mass of stars and material in the galaxy. As the accretion disk is devoured by the black hole a tremendous amount of radiation is emitted into space.
Why isn't a quasar a planet?
Quasars are not planets because they are not spherical and do not orbit a star. A quasar is a supermassive black hole in the process of consuming large amounts of matter.
The Milky Way Galaxy is a member of the?
It's difficult to be certain; we're inside the Milky Way galaxy, and we've never seen it from the outside. For a long time, astronomers believed that the Milky Way was a classical spiral galaxy, but more complete observations indicates that it is actually a barred spiral galaxy.
Is the biggest quasar able to destroy the biggest supermassive black hole?
Yes. Hypergiant stars are very large but also have very low densities. The radiation pressure from a quasar is enough to destroy such a star.
How can a black hole grow into a quasar?
The black holes that are the centers of quasars need to be big - like center of the galaxy-big, but they also need a large accretion disc around them, feeding them. The quasar-radiation we detect comes from the matter continuously falling into the black hole from the accretion disc. --- A quasar is a powerfully broadcasting stellar source. By definition, a black hole does not emit any visible radiation, light or radio waves (they can emit Hawking radiation, which is different). The radiation that is created and focused by a quasar would originate "around" the black hole as material is rapidly accelerated. The most likely source of quasars are supermassive black holes (the mass of a billion stars or more) that are drawing in stars from a large galaxy or galactic cluster. Given their great distance from Earth, today's quasars were active billions of years ago, and there is evidence that suggests they are decreasing in number as the universe ages.
What is the milky way galaxy nearest large neighboring galaxy?
the andromeda galaxy
What other large galaxy is part of your cluster?
The Andromeda Galaxy, and the Triangulum Galaxy.
What is the Milky Way Galaxy's nearest large neighboring galaxy?
the andromeda galaxy
What is the shape of large magellanic cloud galaxy?
It is an irregular galaxy.
How does a galaxy that contains a quasar differ from an ordinary galaxy?
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.
