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No. The red shift simply means that the absorption lines of elements such as hydrogen and helium are shifted towards the red end of the spectrum. A very hot star would normally appear blue. If it were relatively near the earth and so receding relatively slowly, the spectrum would still be blueish, rather than red.
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What is the difference between the red shift and the blue shift?
A "redshift" is a change in the light observed from a source to longer wavelengths. That's a change from the blue end of the spectrum to the red end of the spectrum. A "blueshift" is the opposite. It's a change towards shorter wavelengths.
Does red shift expand the universe?
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 redshift is z, then (size of universe at redshift z)/(current size of universe)= 1/(z+1)
When does redshift occur?
Red shift occurs when an object is moving away from the observer.
Who discovered the Doppler red shift?
The Doppler redshift was discovered by Hippolyte Fizeau in 1848.
How does the red shift and the big bang theory connect?
According to modern cosmology, every point in space should see every other point (on a large scale so point=galaxy) moving away from it as a result of the big bang, and redshift is when light is shifted toward the red end of the spectrum(Captain Obvious reporting for duty!) because the source is rapidly moving away. So redshift of galaxies is an indication of them moving away from us, as predicted by the big bang.
In astrophysics terms when does redshift happen?
In astrophysical terms, redshift occurs when light or electromagnetic radiation increases in wavelength and shift to the red end of the spectrum. In other words colors seem more red than they are.
How do you identify redshift occur in nano particle determination?
As the band gap of the nano particle decreases,the strong absorption edge shift towards red of the electromagnetic spectrum,which is called redshift.
Where does the name redshift come from?
The name "redshift" comes from the fact that when the energy of light decreases, the lines of a spectrum, for visible light, will change, or shift, towards the red end - the low energy end. This term is really only appropriate for visible light, but it is generally used for a decrease in energy. In infrared light, a reduction in energy will actually shift the spectrum AWAY from red, but the term "redshift" is still used in this case.The name "redshift" comes from the fact that when the energy of light decreases, the lines of a spectrum, for visible light, will change, or shift, towards the red end - the low energy end. This term is really only appropriate for visible light, but it is generally used for a decrease in energy. In infrared light, a reduction in energy will actually shift the spectrum AWAY from red, but the term "redshift" is still used in this case.The name "redshift" comes from the fact that when the energy of light decreases, the lines of a spectrum, for visible light, will change, or shift, towards the red end - the low energy end. This term is really only appropriate for visible light, but it is generally used for a decrease in energy. In infrared light, a reduction in energy will actually shift the spectrum AWAY from red, but the term "redshift" is still used in this case.The name "redshift" comes from the fact that when the energy of light decreases, the lines of a spectrum, for visible light, will change, or shift, towards the red end - the low energy end. This term is really only appropriate for visible light, but it is generally used for a decrease in energy. In infrared light, a reduction in energy will actually shift the spectrum AWAY from red, but the term "redshift" is still used in this case.
Why is the red end always on the outside in the continuous spectrum?
Red is at the low frequency end of the visible spectrum.
What is the difference between the red shift and the blue shift?
A "redshift" is a change in the light observed from a source to longer wavelengths. That's a change from the blue end of the spectrum to the red end of the spectrum. A "blueshift" is the opposite. It's a change towards shorter wavelengths.
Galaxies that show redshift in color must be red in color?
No. You can figure out exactly what elements are in stars and galaxies by examining the color spectrum of the light detected; the frequencies of the bright and dark lines in the spectrum tell you what's what. But there's a problem. For distant galaxies, the light spectrum is wrong. The frequency lines of the spectrum are all too low. One possible explanation of the incorrect spectrum is that those stars and galaxies are MOVING AWAY from us, and that the spectrum is shifted toward the red end of the color spectrum because of the Doppler effect. So scientists believe that the "red-shift" on the color spectrum of stars and galaxies indicate that they are moving away. Not all galaxies show a red-shift; the Andromeda Galaxy, M31, shows a pronounced BLUE-shift, indicating that it is heading TOWARD us. In fact, scientists believe that the Milky Way and Andromeda will probably collide in about 3 billion years.
What happens to energy as a wave travels out from its source?
Energy is lost as it travels - thus the wave length grows longer. This is usually called 'redshift' as the wave radiated from the source shifts towards the less energetic red end of the electromagnetic spectrum (http://en.wikipedia.org/wiki/Electromagnetic_spectrum). Wikipedia has more information on redshift - http://en.wikipedia.org/wiki/Redshift.
What does it mean if a star is experiencing a red shift?
redshift is what happens when visible light gets longer in wavelength, thus shifting toward the red end of the spectrum of visible light. This is a phenomenon that occurs when the light source is moving away from the observer.
What is the explanation of the redshift of distant objects?
Light can behave as a particle or a wave. In the case of red shift it is behaving as a wave. Different colours of light in the spectrum have different wave lengths, blue being shorter and red longer. If an object is moving away from you the wavelengths on its light appear longer so the colours seem to move towards the red end of the spectrum.
What colour is always outside the rainbow?
The Red spectrum of colors is always the outermost arc on a Rainbow while the Blue spectrum of colors make up the innermost arc
What are Edwin Hubble's Major contributions Invention Theory or Discovery?
Edwin Hubble had three major discoveries: the Universe extends beyond the Milky Way Galaxy; Redshift increases with distance (Redshift is the change in light towards the red-end of the spectrum as objects recede from our perspective); and, he discovered the asteroid 1373 Cincinnati.
What model of universe creation is supported by a red shift?
Well red shift occurs when an object is moving away from you in a particular way, causing the frequency of light from it to move proportinally towards the red end of the visible spectrum. Therefore, redshift supports the 'expanding' model of the universe.
