If a galaxy is 9.0 Mpc away from Earth and recedes at 510 km/s, what is H? What is the Hubble t

Q: Pretend that galaxies are spaced evenly, 8.0 Mpc apart, and the average mass of a galaxy is 1.0 ✕…

A: Average density of the matter in the universe ρavg=M43πd23=6Mπd2

Q: What is the redshift z of a galaxy 193 Mpc away from us?   Note: Assume a value of the Hubble…

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Q: An 800 nm spectral line when observed from a galaxy is shifted to 920 nm. Calculate the redshift.

A: Redshift is the process by which light from moving sources is shifted to longer wavelengths.…

Q: The time for a galaxy to cross from one side of a cluster to the other is called the crossing time.…

A: We are given the velocity of galaxy. We are also given the diameter of cluster. This diameter is…

Q: A star at a distance of 50000 light years from the center of a galaxy has an orbital speed of 100…

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Q: If a galaxy is 9.0 Mpc away from Earth and recedes at 488 km/s, what is H, (in km/s/Mpc)? | km/s/Mpc…

A: Hubble discovered that galaxies appear to move away from Earth and the velocity of recession (v) is…

Q: Pretend that galaxies are spaced evenly, 7.0 Mpc apart, and the average mass of a galaxy is 1.0 ✕…

A: The average density of matter in the universe is given by

Q: Use this table of magnitudes to determine the following. (a) What is the ratio of the distance to…

A: According to question this is given that Diameter of the Milky Way galaxy dMW=1021meters approx…

Q: Are the galaxies red-shifting or blue-shifting? Explain. (You may find the big-bang theory helpful).…

A: This problem can be solved using the Hubble's Law.

Q: What is the estimated age of the Universe (in years) if the Hubble constant is 80 km/s/Mpc?

A: Hubble constant (H) = 80 kms-MpcUsing , 1 Pc = 3.08×1016 m= 80×1000 ms×106×3.08×1016 m = 2.59×10-18…

Q: Which one of these types of galaxies do you expect to have the largest star formation activity?…

A: A galaxy which has high relative flux density, which shows it has a dense region that helps in more…

Q: What is the Eddington luminosity of a quasar with a mass of 1 billion Msun ?

A: Eddington luminosity or Eddington limit is the maximum luminosity that can be achieved by a star in…

Q: Calculate the age of the universe for the following Hubble’s constant, (a) 30 km/s/Mpc

A: As per Hubble's law, the universe is expanding. The recessional velocity of galaxies is directly…

Q: A galaxy is observed to recede at speed 140 km/s. If the Hubble constant is 70 km/s/ Mpc, how far is…

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Q: Please solve page 3 and 4 using the table below NGC NO. Galactic Longitude (deg) Galactic…

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