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Quasars are highly luminous due to the accretion of mass onto supermassive black holes at their centers. Since their luminosity comes from a small region near the black hole, they must be compact in size. Observations of rapid variability in their light output further support the idea that quasars are small objects, as these changes happen on timescales that would be consistent with a compact source.

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Do quasars have large or small redshifts?

Quasars typically have large redshifts, which indicate that they are moving away from us at high speeds. This redshift is due to the expansion of the universe and can help astronomers determine the distance and age of quasars.


Why are quasars so small?

Quasars are small because they are powered by supermassive black holes at the centers of galaxies. The intense energy emitted by the accretion of matter onto the black hole creates a very compact and luminous source in the center of a galaxy.


How are astronomers able to determine that quasars are so small?

Astronomers determine the size of quasars by analyzing the variability of their light. Quasars show rapid and dramatic changes in brightness over short periods, indicating that they must be very compact, likely smaller than our own solar system. By studying the time scales of these changes, astronomers can estimate the size of quasars.


Find some evidence that you think shows that Pluto should or should not be classed as a planet?

One piece of evidence supporting Pluto being considered a planet is its spherical shape and orbit around the Sun. However, its classification as a planet has been debated due to its small size, sharing its orbit with other objects, and not being able to clear its orbit of debris like other planets.


What did Birds evolved from?

Birds are believed to have evolved from theropod dinosaurs during the Mesozoic era. The fossil record shows a gradual transition from small, feathered dinosaurs to early bird species, which eventually led to the wide diversity of bird species we see today.

Related Questions

Do quasars have large or small redshifts?

Quasars typically have large redshifts, which indicate that they are moving away from us at high speeds. This redshift is due to the expansion of the universe and can help astronomers determine the distance and age of quasars.


Is admissible evidence in small claims court?

Yes, from what I have seen on court TV shows. There is a lot of info in the headers that can make them reliable evidence.


Why are quasars so small?

Quasars are small because they are powered by supermassive black holes at the centers of galaxies. The intense energy emitted by the accretion of matter onto the black hole creates a very compact and luminous source in the center of a galaxy.


How are astronomers able to determine that quasars are so small?

Astronomers determine the size of quasars by analyzing the variability of their light. Quasars show rapid and dramatic changes in brightness over short periods, indicating that they must be very compact, likely smaller than our own solar system. By studying the time scales of these changes, astronomers can estimate the size of quasars.


Use geology in a sentence about evidence of evolution?

small geological changes over time can lead to big changes like the grand canyon. this shows that the earth is very old.


What are small amounts of evidence?

nothing


Find some evidence that you think shows that Pluto should or should not be classed as a planet?

One piece of evidence supporting Pluto being considered a planet is its spherical shape and orbit around the Sun. However, its classification as a planet has been debated due to its small size, sharing its orbit with other objects, and not being able to clear its orbit of debris like other planets.


What do you call very small bits of physical evidence?

This could be trace evidence


Is email evidence admissible in Small Claims Court?

Generally the presiding judge decides what form of evidence can be submitted. If an e-mail can be connected to the person without there being any doubt of someone else having sent it, then it is possible it could be used as evidence in some cases. If the e-mail account was accessible to others, it is highly doubtful it would be allowed to be entered as evidence.


How do you get your kid on TV?

small acting shows


What is evidence in small amounts?

Small amounts of evidence are still valuable in supporting a claim or hypothesis. Even a single piece of evidence can contribute to a larger body of knowledge or help in drawing preliminary conclusions. It is important to consider the quality and reliability of the evidence, regardless of the quantity.


What did the oldest evidence of humans in the canyon now what is it we can see?

Evidence of humans in the Chaco Canyons were small pit houses.