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The redshift of galaxies in the universe is correctly interpreted as?
Wiki User
∙ 14y ago
The redshift of galaxies is caused by 3 effects: Doppler effect, Expansion of space and gravitational effects. The further away a galaxy is from us the more it is redshifted (from this it can also be deduced that the further a galaxy is from us the faster it is traveling away from us assuming all galaxies started at the same point - aka 'The Big Bang').
In short the interpretation of redshift is both speed and distance from us to the galaxy in question.
Wiki User
∙ 14y ago
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Why are all distant galaxies redshift?
because the universe is expanding.
Which of these facts is the best supporting evidence that the universe is expandingThe stars vary in chemical composition The galaxies can spin to form eddies. The universe is filled with galaxies of?
None of them. The best evidence is the redshift.
What is the difference between galaxies and the universe?
A universe is a very big realm of darkness with galaxies in it. and there are billions of galaxies in the universe! One of those galaxies is our solar system, and in that solar system is our planet. There probably is even more then just one univserse. O_o Well... Galaxies are within the universe and a universe is defintly bigger then a galaxy
What causes a cosmological redshift?
A redshift occurs when the wavelengths increase in objects by light or electromagnetic radiation levels in an object. In cosmological redshift also has to do with light; however, instead of an increase in wavelengths, there is an expansion of the universe.
Why do you need to learn about the solar system galaxies and the universe?
We need to learn about solar system, galaxies and universe because it will help us in the future....
Why are all distant galaxies redshift?
because the universe is expanding.
Will the Sloan Digital Sky Survey map and redshift all 100 billion galaxies in the observable universe?
It will be impossible for the Sloan Digital Sky Survey to map and redshift all 100 billion galaxies in the observable universe.
What is the best evidence the universe is still expanding?
The redshift of distant galaxies, and the fact that the degree of redshift depends on the distance between us and those galaxies. What we observe can only be explained by Hubble Expansion.
Why does the red shift of galaxies provide evidence that the universe is expanding?
It means that the light from galaxies is losing energy. The only reasonable explanation for this is the cosmoligical redshift - that is, that the Universe is expanding.
How did you discover the universe is expanding?
This can be seen from the redshift of distant galaxies - normally attributed to the Doppler effect.
What Doppler shift do galaxies show?
Some nearby galaxies move towards us (blueshift), some move away from us (redshift). Galaxies that are farther away all move away from us (redshift); this means that the Universe is expanding.
Which of these facts is the best supporting evidence that the universe is expandingThe stars vary in chemical composition The galaxies can spin to form eddies. The universe is filled with galaxies of?
None of them. The best evidence is the redshift.
How does redshift support the notion of the expanding universe?
The redshift of distant galaxies is believed to be a result of the Doppler effect - in other words, the light is shifted towards lower frequencies ("redshifted") due to the fact that the galaxies move away from us.
How red shift connect with universe expanding?
The expansion of the Universe results in the light from faraway galaxies being redshifted. This is called the "cosmological redshift"; it can be compared with the Doppler effect (which also causes a redshift), but the details are somewhat difference.It is an observed fact that most galaxies are redshifted; the explanation that seems most reasonable is that it is caused by the cosmological redshift. This means that space itself is expanding.
What shift did hubble see that supported the big bang theory?
Redshift; the generally accepted explanation for the redshift of distant galaxies is that it is cosmological redshift, caused by the expansion of the Universe. This is somewhat related to the idea of the Doppler effect.
An observation of the red shift of galaxies suggest that the universe is?
... expanding. The redshift is attributed to the Doppler effect, meaning that those galaxies are receding, or getting away, from us.
How do you do all the redshifts on the 100 billion galaxies in the universe?
You don't. That's way too much. You just get the redshift of a sample of galaxies. As a clarification, the current estimate is about 170 billion galaxies - and that refers to the "observable Universe". The entire Universe is expected to be much larger than that (and have many more galaxies), but those can never be observed.
