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What determines galaxy motion and distance?
One of the most reliable methods employed presently is using Hubbles Laws and Constant, utilizing the red shift. RED SHIFT A+LS (:
When light waves are stretched by an object moving away from us?
Doppler effect Red Shift
Used to explain the principle of the red shift?
The red shift IS the Doppler Effect. I use the sound of a car or motor bike passing by on a road. The high pitch of the approaching vehicle suddenly drops to a low pitch as it speeds by and retreats.Note:Cosmological redshift is not attributed to the Doppler Effect, but to the metric expansion of the universe.
What causes a red shift?
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 shift Same way as the source is apporaching the observer, then frequency would appear to increase and so it moves towards violet. Hence violet shift.
What does a blue and red shift of absorption lines in a spectrum indicate?
Blue shift is a decrease of a signal's wavelength, and/or an increase in its frequency, due to the Doppler Effect. This indicates that the object is moving towards the observer.Red shift is the increase of a signal's wavelength, and/or a decrease in its frequency, due to the Doppler Effect. This indicates that the object is moving away from the observer.
What effect is red shift an example of?
The Doppler effect.
What determines galaxy motion and distance?
One of the most reliable methods employed presently is using Hubbles Laws and Constant, utilizing the red shift. RED SHIFT A+LS (:
What are the best indications that the universe is expanding?
A misunderstanding of red shift is the indicator is expanding. The correct understanding of red shift indicates the universe is in continuity, not expanding and is finite. RED SHIFT OF DISTANT GALAXIES.
How did the Doppler effect lead to the Big Bang theory?
Actually, it wasn't the Doppler-effect that lead to the Big Bang theory, but the red-shift of remote galaxies. Although it was initially thought that this red-shift might be caused by a Doppler-effect, it is now understood that this red-shift is caused by the metric expansion of space itself.
What is an effect called in which a star or galaxy appears to move away from an observer?
red shift
When light waves are stretched by an object moving away from us?
Doppler effect Red Shift
What creates the phenomeon known as red shift?
Two things can cause red-shift:- The rapid motion of an object away from the observer. This is known as the Doppler-effect.- Expansion of space between the object and the observer.
What is the opposite of the red shift?
The opposite of the red shift is the purple shift.
What is droppler effect?
The Doppler effect is the mix of red shift and blue shift. For example when your walking down the street and a car drives up from behind you and you don't see it but hear it your hearing the blue shift of the Doppler effect. also same scenario but the car has passed and driving away in front of you then your hearing the red shift of the Doppler effect. hope that helps I'm in 8th grade might wanna check but I'm pretty sure that's right well that's what we learned today anyway...:)
Explain why some stars in the milky way galaxy have a blue shift Doppler effect and other stars in the milky way have a red shift Doppler?
A blue-shift means an object is moving towards us, a red-shift means it is moving away from us. Blue-shift and red-shift are changes in frequency of the light we receive, due to the relative movement. This is called the Doppler effect.
Used to explain the principle of the red shift?
The red shift IS the Doppler Effect. I use the sound of a car or motor bike passing by on a road. The high pitch of the approaching vehicle suddenly drops to a low pitch as it speeds by and retreats.Note:Cosmological redshift is not attributed to the Doppler Effect, but to the metric expansion of the universe.
What observation of the light from galaxies shows that nearly all galaxies are moving away from us?
The Red Shift or Doppler effect
