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Red Shift

~300 answered questions
Parent Category: Cosmology
When the galaxies or other celestial bodies are moving away, the light waves become stretched out, that is, they become redder. This process is called red shift.
If you have equipment sensitive enough to make the observations and measurements, you discover that regardless of what direction you look, all of the distant galaxies outside of our "local group" are moving away from us, and the farther away from us a galaxy already is, the faster it's moving awa…
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We can't be sure. The only thing we know for sure is that it could be explained as the speed with which that galaxy is receding from us. If that's actually the cause of the red shift, then from all the red shifts that we observe, we have to conclude that all of the distant galaxies are receding f…
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Light radiated or reflected from an object can change frequency relative to the viewer by virtue of Doppler effect or Doppler shift. We're familiar with it here on earth because it affects sound. A freight train's whistle sounds higher in pitch when the train is coming at us. It is lower as it passe…
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Based on numerous theories they said that the universe was created by the big bang. So based on that theory i will give you your answer. They said that after the big bang radiant energy have been spread at the end of the universe and it's the snow or hiss that has this static sound when you turn…
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I always like the easy questions...! The universe expands into nothing at all. Note that this is different from a vacuum. The universe expands into where there is nothing there. When the universe was created, spacetime, the "construct" in which the universe exists, was created with it. And spacetime…
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Red Shift is a colour spectrum (a strip of light containing the colours of the rainbow) that has black lines moving across it that prooves galaxies in space are moving further and further away since the Big Bang. You look at the stars. You expect to see, for instance, the hydrogen spectrum at this…
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Isotropically, as far as we can tell.More interesting is what does it expand into. At the boundary of the universe there isn't anything - including space. Perhaps the voidness draws the space/energy/matter towards it.
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The red shift indicates an elliptical movement around a central attractive force. The central force could be gravitational or electrical/electromagnetic. In either case the red indicates elliptical movement.
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It simply suggests that they are all exponentially moving away from each other. Larger stars can be seen from greater distances. Larger stars create greater red shifts. So you see more red shifting from further away. Ho, hum, theories come and theories go.
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The star is moving away from us. Therefore, the Doppler effect must be considered. The Doppler effect is waves (in this case light) will be compressed in front of a moving object and stretched behind the object. This stretching creates a long wavelength. Red light has a long wavelength (the long…
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Objects emit light in different wavelengths which we perceive in varying colors (and also those we can't see, such as ultraviolet, x-rays, gamma rays, etc.) With that in mind, think of redshift as a movement away from you, as indicated by the distance between the waves of light (emitted from some ce…
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Its part of science! Edit : In astronomy, the Doppler effect is the change in wavelength of light caused by movement of a light source such as a star or a whole galaxy. The term "red shift" refers to the increase in the light's wavelength from the blue to the red end of the spectrum. This happens…
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He noted that light emitted from stars is shifted further toward the red of the electromagnetic spectrum . From this he concluded that the universe was expanding.
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ones moving away from us Above is the typical Doppler Explanation. Of course, the star could be even still relative to us, when you consider the gravity hole (as an explanation for the red shift).
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A method for determining the distance stars uses a concept call red shift where light from a star is more red due to its motion.
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Christian Doppler, and Austrian Physcist .
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The so-called red shift, a Doppler effect, tells scientist the speed and direction in which a star is moving. By looking at the red shift of a large number of stars, they can establish that they are moving away from us, but every star is moving away from each other. So we can't tell exactly where th…
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Vesto Slipher and Edwin Hubble were the first who discovered a red shift in nearby Galaxies and as telescopes improved the formula could be applied to more distant Galaxies. The instrument that determines red or blue shifts is called a Spectroscopy. Ans. 2 The person who discovered (and explained…
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Red shift and blue shift refer to the change in the frequency of light when an object shifts away (red) from and towards (blue) the center of potential energy. Red shift and blue shifts show up in light spectra patterns from objects. There are two kinds of shifts, gravitational and electric due to …
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In 1848, Hippolyte Fizeau first noted a red shift in stars.In 1912, Vesto Slipher first noted a large red shift in nebulae.In 1929, Edwin Hubble published his findings that the size of galaxy's red shift was proportional to its distance from our Earth.
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a star is moving AWAY FROM EARTH
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It indicates if a object is moving away.
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that stars are moving away from us, as if flung out from an explosion, helping support the big bang theorey and showing us that the universe is expanding
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"Red shift" describes the effect on the observed spectrum when the source is receding from the observer. "Blue shift" describes the effect on the observed spectrum when the source is approaching the observer.
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when a star moves away from us, the frequency and wavelength of the rays coming towards us changes, so if it is red then we know it is moving away, if it is blue it is coming towards
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Red shift and blue shift refer to the change in the frequency of light when an object shifts away (red) from and towards (blue) the center of potential energy. Red shift and blue shifts show up in light spectra patterns from objects. There are two kinds of shifts, gravitational and electric due to t…
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That the distance between us and all distant galaxies is expanding, helping to support Big Bang Cosmology. Answer2: Hubble's red shift is an indicator of the distance of the object v=HD the longer the distance D the greater the red shift velocity v. Hubble said the red shift is a "hitherto unreco…
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The visible spectrum contains two ends, infrared and ultraviolet. A shift of light towards the infrared end typically indicates the object is receding from the observer. Another explanation is that the object may be entering a deep gravity well, which would also stretch and distort light reflected …
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many things, including the Hubble's expansion model of the universe.Answer2. The redshift proves that the body is under central attraction and is in Continuity Condition.
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A red shift tell us that a object is moving away, while a blue shift tells us an object is moving toward us. Light that has been 'red shifted' has a longer wavelength when it reaches our eyes/telescopes/etc. than it had when it left the object. Light that has been 'blue shifted' now has a shorter w…
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Red shift is caused because the universe is expanding, and the perceived spectrum of energy seen in the stars is shifted to a lower frequency (towards red) by the doppler effect. Yes, but also: Earth sees red shifting in all different directions out into space. So we are the center of the Universe…
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When hearing to a sound from a moving source, we notice a change in pitch (frequency) as that source moves towards us, and then passes us and moves away, eg. think of the difference in sound frequency of fast moving cars if you've ever seen a formula 1 grand prix. This difference in pitch is due to …
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Red shift occurs when an object moves away from the observer. So as you are on Earth, it is when objects move away from Earth. (Blue shift as it moves closer.) A star's red shift could be due to losing energy to gravity.
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It has to be of sufficient size and luminosity to be visible through a telescope.
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When light emitting bodies move away from us
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The red shift of galaxies suggests that the universe is expanding in all directions. As the space-time volume between galaxies increases, they seem to move away in all directions and the wavelength of light received is "stretched" meaning a shift in frequency towards the red end of the spectrum. Th…
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Expanding Or that the light is exiting a gravity hole (star).
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Either you or the star are moving away from one another, or both. It is when the light is stretched because you are moving away from each other so the light goes red- red shift! Or the light is exiting a gravity hole (star).
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We can't be sure. The only thing we know for sure is that it could be explained as the speed with which that galaxy is receding from us. If that's actually the cause of the red shift, then from all the red shifts that we observe, we have to conclude that all of the distant galaxies are receding f…
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No its fictional
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for the last time IT DOES NOT EXIST!!idk but the guy who said that is crazy
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Edwin Hubble however the Doppler effect was discovered by Christian Doppler
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The red shift is a Doppler effect which showed that almost all galaxies are moving away from us (or us from them), and that the farther away a galaxy is the faster it is moving. Logically, if you "move" backwards in time (a thought experiment only) then it fits that the entire universe occupied a s…
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I dont think i will come out but there is something like it The Nerf Longstrike
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In 1848, Hippolyte Fizeau first noted a red shift in stars.In 1912, Vesto Slipher first noted a large red shift in nebulae.In 1929, Edwin Hubble published his findings that the size of galaxy's red shift was proportional to its distance from our Earth.
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Unfortunately the Nerf RedShift CS-12 was a video-game exclusive blaster and is not available for purchase.
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when a luminous source is relatively moving away, the light emitted from the source is almost stretched (the frequency of the waves decrease). In other words, enough redshift will cause violet light to become red due to a decrease in frequency. Light which is already red will turn to infra-red, micr…
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The redshift indicates that the star is centrally attracted and its centrifugal acceleration is away from the central attraction. The redshift indicates the balance between centripetal and centrifugal forces. ==== The cause of red-shift is not known with certainty, since there's no laboratory big …
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The "related link" below explains the basic idea, without too much mathematics.Einstein's Theory of Relativity is needed to get exact answers, but I'm pretty sure that's not required by this question. On the Home Page of this link, look for "Curriculum Projects" and then click on "NAAP Labs". The…
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Because the Universe is expanding, far-away galaxies move away from us. That makes the frequency of the light from those galaxies change towards the red part of the spectrum (if we talk about visible light) - in general, become less energetic. This is called redshift. (The redshift is one of the maj…
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These terms and conventions ("blue" = compaction, while "red"= diffusing) are used even when referring to signals outside the optical range (for instance, radio waves, x-rays and gamma rays). blue is going in, red going out. blueshift has blue tinge, redshift has red tinge
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1) as discovered by Edwin Hubble every distant galaxy appears to be moving away from us - and the further away it is the faster it is moving. This implies that a long time ago everything was closer together and even further back in history it must have all come from a single place. 2) the compositi…
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This redshift is a strong indication that the Universe is expanding. The only reasonable explanation of this redshift is the Doppler effect, and this means that the galaxies are moving away from us. The greater their distance from us, the faster they move away.
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... expanding. The redshift is attributed to the Doppler effect, meaning that those galaxies are receding, or getting away, from us.
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probably around 30-40 dollars
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that the universe was in 1904 expanding. this was due to the lack of blue shift, therefor it can be deduced that the red shift in orrcuring within the galaxy.
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Nothing at all. Planets are cosmic afterthoughts, mere crumbs left over from the birth of the universe and that stars and galaxies that fill it.
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They're both caused by the same basic phenomena. Travel toward a radiation source and thefrequency will appear higher. Travel away and the frequency will appear lower.
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The solvent in which the absorbing species is dissolved also has an effect on the spectrum of the species. Peaks resulting from n ® p* transitions are shifted to shorter wavelengths (blue shift) with increasing solvent polarity. This arises from increased solvation of the lone pair, which lowers th…
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A red shift tell us that a object is moving away, while a blue shift tells us an object is moving toward us. A red shift has a shorter wave length then a blue shift as the red shift is from the red part of the electromagnetic spectrum and vice versa for blue. (blue shift is from the blue (violet) pa…
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Red shift shows that the distance between all points in our Universe has been increasing at a constant (approximately) rate. Thus, there must have been a time when the distance between points in our Universe was so small that all matter must have been (almost) infinitely dense. Based on our present …
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Red shift supports the steady state theory in that the red shift indicates the Continuity Condition. Steady State means Conservation of Energy and does not require an expanding universe. It is the misunderstanding of red shift that adds the requirement of an expanding universe and the need for conti…
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When a light source is receding away from an observer then due to Doppler effect the frequency would appear to fall. Hence the colour would be shifted towards the red end. Hence red shiftSame way as the source is apporaching the observer, then frequency would appear to increase and so it moves towar…
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It tells us that every galaxy, in every direction from us, is moving away from us, and the farther away from us it already is, the faster it's moving away from us. If you think about that for a while, it seems to say that the entire universe is expanding, and we happen to be at the center of it.…
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The greater the red shift, the further they are from the observer.
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The RedShift was unfortunately never released due to it being a video-game exclusive blaster.
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A red shift in light from a distant celestial objects indicates different things to different scientists depending on their wisdom. For example Edwin Hubble said the red shift indicated a "hither too unrecognized principle of nature". Other scientists saw an indicator of an expanding universe. My op…
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The Andromeda Galaxy red shift is -301 km/s Which actually means it is blue shifted and is heading towards us at about 100 to 140 kilometres per second
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The location of those lines would be shifted to a longer wavelength (or lower frequency or energy) -- ie, towards the red part of the visible spectrum. In other words, a red shift.
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The Big Bang theory predicts an expanding universe. The red shift, being the Doppler effect of light when something is receding from you, confirms this because when looking at galaxies the light emitted from them is red shifted. The farther away galaxies have a higher red shift, confirming that all …
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Cosmological redshift is the shift in stellar spectrum due the space within our Universe expanding since the time of the Big Bang. It is isotropic, which could only happen if the Universe were expanding -- if it was spinning apart, the red shift would be different in different directions.The age of …
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Redshift measure the recession speed of stars and galaxies. These speeds are proportional to distance--the farther a star or galaxy is from a given location in space, the faster that entity is moving away from that location. This proportionality is given as Hubble's Law. In general, everything is mo…
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Redshift or blueshift is a change in the frequency of the light you receive, compared to the frequency at which it was emitted. A redshift is a reduction in frequency; this basically means that the object that emits the light is moving away from you.
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"Redshift", which means that the frequency of the light as seen by us is LESS than the frequency at which it was emitted, tells us that an object is moving away from us.
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Edwin Hubble didn't discover redshift. What he did was make a systematic statistic of redshifts and blueshifts, of known galaxies. What this demonstrated was that the Universe is expanding.
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It is moving away at a significant speed.
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Whenever there is a relative motion between a source of light and observer then frequency appears to get changed. So colour would be changed. If both recede away from one another then there will be a apparent decrease in frequency and so colour has to move towards red end of visible spectrum. This i…
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Most galaxies are moving away from us. Only a few galaxies, which are nearby, are moving towards us.
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The universe is expanding, as a result both of the Big Bang (some thirteen and a half billion years ago) and also what appears to be pressure exerted by what is known as dark energy (which is to say, some kind of energy which we have a great deal of difficulty in directly observing). Because of this…
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The expansion of space in all parts of our Universe.When a group of photons leave an object (like a super-nova in a distant galaxy), they have a certain wavelength, and a certain distance between the first photons from that super-nova and the last such photons.During their travel, the expansion of s…
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It is a change in the wavelength of light (or other electromagnetic radiation)emitted by a source. A redshift means the wavelength is increased and a blueshift is when the wavelength shortens. (Red light has a longer wavelength than blue light.) The 3 causes of these effects are: 1) The Doppler e…
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That can be either a result of the Doppler effect, or a cosmological redshift. The latter is caused by an expansion of "space itself".
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Both can be observed. However, redshift is observed for most galaxies, because of their distance (and the general expansion of the Universe).
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Cosmic redshift is a cosmological phenominon created when a distant object in our universe is speeding away. This is seen because the Universe is expanding. As the object races away the light waves stretch, making them longer in the spectrum, and the longest wavelength is red. This effect can be see…
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It tells us that most galaxies are moving away from us.
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Let's begin by analogy with sound waves. You may have stood by a railroad crossing while an approaching train was sounding its horn. As the horn passes you, you'll note that the pitch of the sound (= frequency of the sound wave) changes to a lower tone. What's happening is that, as the horn approach…
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The Big Bang Theory
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A red shift is when a object's light turns red because of the Doppler effect. The Doppler effect The Doppler Effect is when the light waves get longer or shorter because of distance. For Example: Most stars and galaxies are red shifted because they moving away from us. That's gives a red shift becau…
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No, it's the other way round. The Big Bang is responsible for the redshift.
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The two are completely unrelated.
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It tells us that the Universe is expanding.
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Redshift does not expand the universe. Redshift is a physical quantity that is used to describe the expansion of the universe. The current time has a redshift of zero. at redshift 1, the universe was half the size it is now. At redshift 2, the universe was 1/3 the size it is now, and so on. if redsh…
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The red shift does not expand the universe. The red shift is an indicator that the universe is NOT Expanding. The red shift is an indicator of the centrifugal ( outward) force needed to balance the centripetal ( inward) force of gravity or electrical attraction. The earth has a redshift v/c= 30k/300…
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The useful energy will be gone eventually, one way or another. As a result of the Second Law of Thermodynamics, it is unavoidable that we will eventually run out of useful energy.
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