0
What else can I help you with?
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.
How does the Doppler shift determine the distance of Sirius?
It doesn't. The Doppler shift can tell you how fast something is moving towards us or away from us; not how far it is. Only in the case of distant galaxies can this be used to estimate the galaxy's distance, because of the expansion of the Universe (galaxies that move away from us faster are generally farther away).
If the Doppler shift indicated that the shift was to blue-violet on the spectrum would the Big Bang theory?
If the Doppler shift indicated a blue-violet shift in the spectrum of distant galaxies, it would suggest that those galaxies are moving toward us rather than away, contradicting the current understanding of the expanding universe as described by the Big Bang theory. The Big Bang theory is supported by the observation of redshift in the light from distant galaxies, indicating they are receding due to the expansion of the universe. A blue shift would imply a contraction or a different cosmic scenario, prompting a reevaluation of fundamental cosmological principles. Thus, it would challenge the prevailing model of cosmic expansion.
The spectral lines from distant galaxies do not match spectral lines on Earth due to?
The spectral lines from distant galaxies do not match those on Earth because of the Doppler effect, cosmic expansion, and differences in elements present in the galaxies. These factors cause the observed spectral lines to be shifted or altered compared to what we see on Earth.
What are the best indications that the universe is expanding?
One of the best indications that the universe is expanding is the redshift of light from distant galaxies, which shows that they are moving away from us. Another indication is the cosmic microwave background radiation, which is consistent with an expanding universe. Additionally, observations of the distribution of galaxies and the large-scale structure of the universe support the idea of expansion.
What observation of the light from galaxies shows that nearly all galaxies are moving away from us?
The Red Shift or Doppler effect
What is it called when galaxies move away and the light waves become longer?
That is called a red shift or a Doppler shift.
What kind of Doppler shift did Hubble observe in these distant galaxies?
Most galaxies exhibit a redshift, meaning that they move away from us.
How is the Big Bang theory supported by the observed Doppler shift of galaxies?
Doppler shift shows that galaxies are moving away from each other at rates that depend on how far apart they are. According to the Big Bang Theory, the universe began with an enormous explosion. Then, the entire universe began to expand everywhere at the same time.The doppler shift shows that galaxies are moving away from each other at rates that depend on how far apart they are.
What information using the Doppler shift have you found about the movement of stars and galaxies within your universe?
The universe is expanding.
Does red shift have anything to do with irregular galaxies?
NoRed shift is the Doppler effect as it applies to the light from receding galaxies and stars.As the name suggests, "irregular" galaxies have no specific form, and so the group contains a very diverse selection of objects.
What is the red shift of light from most galaxies is evidence that?
The most plausible explanation for the redshift is that galaxies are moving away from us. This is similar to the Doppler effect, but it is normally believed that space itself is expanding, so the situation is a bit different from the "normal" Doppler effect.
Who discovered the Doppler red shift?
Christian Doppler, an Austrian physicist, is credited with discovering the phenomenon of the Doppler red shift in 1842. He observed that the pitch of sound waves from a moving object changes depending on the object's motion relative to the observer. His theory was later extended to light waves to explain the red shift observed in the spectra of distant galaxies.
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.
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.
How does the Doppler shift determine the distance of Sirius?
It doesn't. The Doppler shift can tell you how fast something is moving towards us or away from us; not how far it is. Only in the case of distant galaxies can this be used to estimate the galaxy's distance, because of the expansion of the Universe (galaxies that move away from us faster are generally farther away).
If the Doppler shift indicated that the shift was to blue-violet on the spectrum would the Big Bang theory?
If the Doppler shift indicated a blue-violet shift in the spectrum of distant galaxies, it would suggest that those galaxies are moving toward us rather than away, contradicting the current understanding of the expanding universe as described by the Big Bang theory. The Big Bang theory is supported by the observation of redshift in the light from distant galaxies, indicating they are receding due to the expansion of the universe. A blue shift would imply a contraction or a different cosmic scenario, prompting a reevaluation of fundamental cosmological principles. Thus, it would challenge the prevailing model of cosmic expansion.
