6) The redshift of a galaxy is observed to be 1.5. Calculate the recessional velocity of the galaxy.
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Q: The redshift of a galaxy is observed to be 0.5. Calculate the recessional velocity of the galaxy.
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Q: 4) Calculate the redshift of a galaxy with a recessional velocity of 0.68c. (
A: When a celestial object is moving away from the observer the light observed from the object will…
- Redshift takes place when the source is moving away from the observer. This reduces the frequency which will in turn increase the wavelength shifting the spectrum to the red side.
- The velocity at which the source is moving away from the observer will be given by,
Here v is the recessional velocity, c is the speed of light, and z is the redshift.
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- If a galaxy is 9.0 Mpc away from Earth and recedes at 510 km/s, what is H? What is the Hubble time?5) The recessional velocity of a galaxy is found to be 0.52c. Calculate the redshift. (2Which one of these types of galaxies do you expect to have the largest star formation activity? Select one: ○ a. E7 ○ b. Sc ○ c. Sa ○ d. Sb
- The first picture is some background information need help answering the first question about the escape velocity from the andromeda GalaxyThe critical density of a universe is around 5×10-27 kg/m³. Estimate the Hubble constant for this universe.The Hubble Law, equation (D), can be used to determine the age of the universe. Using your average valueof H, calculate the recessional velocity of a galaxy of a galaxy which is 800 Mpc away.Velocity of a galaxy 800 Mpc away: _______________________________km/sec