If a galaxy is 10.0 Mpc away from Earth and recedes at 520 km/s, what is Hubble's constant?
Q: Pretend that galaxies are spaced evenly, 4.0 Mpc apart, and the average mass of a galaxy is 1.0 x…
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Q: Describe a quasar.
A: Quasar is an extremely luminous active galactic nucleus. inside quasar there is a supermassive black…
Q: Imagine that an observed distant galaxy is measured to have a distance of 40 Mpc by a Type Ia…
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Q: What was the maximum age of the universe predicted by Hubble's first estimate of the Hubble…
A: Hubble’s time: It is defined as follows, Here H is the Hubble’s constant which has unit km/s/Mpc…
Q: Consider a universe in which the Hubble constant has been measured to have the value H0 = 50…
A: Hubble's law gives the idea that the universe is continuously expanding, and that galaxies are…
Q: If a standard passenger aircraft can fly at 0.27 km/s (604 mph), how long (in yr) would it take to…
A: The problem is based upon distance time relation. We know that distance is the length. For very…
Q: A galaxy cluster has a recessional velocity of 19,000 km/s. Using the best estimate for Hubble's…
A: To calculate the distance of the distant galaxies in megaparsecs (Mpc) Hubble’s law is used. If the…
Q: If a galaxy has a redshift of 0.35 and the hydrogen line has a wavelength of 486.3 nm, what will be…
A: Redshift happens when the source of light moves away from the observer. The frequency observed will…
Q: Calculate the age of the universe for the following Hubble's constant, (b) 65 km/s/Mpc
A: As per Hubble's law, the universe is expanding. If we assume that the expansion's apparent velocity…
Q: What is the distance in parsec to pulsar 0628-28 using 400 and 600 MHz frequencies? The dispersion…
A: GIven for pulsar 0628-28, dispersion measure DM is 124.5We have to determine distance in parsec to…
Q: The hydrogen Balmer line Hβ has a wavelength of 486.1 nm. It is shifted to 579.8 nm in a quasar's…
A: Redshift is defined as the change in the wavelength due to apparent motion in the quasar spectrum.
Q: If a galaxy is 30 Mpc away from Earth and recedes at 400 km/s, what is Hubble's constant?
A: It is observed that galaxies are moving away from each other instead of coming closer. Based on…
Q: If the active core of a galaxy contains a black hole of 106 Me, what will the orbital period be for…
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Q: Using a value for Hubble's constant of 71 km/s per Mpc, find the recession velocity of a galaxy at a…
A: All observed galaxies were found to be redshifted which meant they were moving away from the Earth.…
Q: What is the redshift z of a galaxy 156 Mpc away from us? Note: Assume a value of the Hubble…
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Q: Certain spiral galaxy is 10.6 Mpc away from us. How fast in km/s is this galaxy moving away from us?…
A: Given, Distance of Galaxy is = 10.6 Mpc The value of Hubble constant = 71 km/s/Mpc We need to…
Q: why are the shells visible around some elliptical galaxies significant?
A: The shell structures in the elliptical galaxies indicates the extremely low surface brightness and…
Q: Can we measure distances to other galaxies using parallax? Why or why not?
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Q: What was the maximum age of the universe predicted by Hubble's first estimate of the Hubble…
A: The first estimate for the Hubble constant H was 500 km/s/Mpc. The formula for the age of the…
Q: If the Hubble's constant was 100 km/s/Mpc instead of 70 km/s/Mpc what would be the estimated age of…
A: It was observed that the galaxies were moving away from us. Edwin Hubble calculated their recession…
Q: Calculate the age of the universe for the following Hubble's constant, (a) 50 km/s/MDC
A: As per Hubble's law, the universe is expanding. The recessional velocity of galaxies is directly…
Q: Under what circumstances would the slope of the best-fitted line in Figure decrease:
A: Required The correct choices.
Q: There exists an element visible in the spectrum of galaxies that shows the following spectra when…
A: Introduction: The Doppler effect refers to the apparent shift in the wavelength of a wave when there…
Q: Calculate the age of the universe for the following Hubble's constant, m (c) 80 km/s/Mpc Of
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Q: If a galaxy is 100,000,000 parces away and has absolute magnitude of -20.0 what is the galaxies…
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Q: What is the redshift z of a galaxy 186 Mpc away from us? Note: Assume a value of the Hubble…
A: Hubble's law, also known as Hubble- Lemaitre law states that the velocity of the galaxy, also called…
Q: Certain spiral galaxy is 8.6 Mpc away from us. How fast in km/s is this galaxy moving away from us?…
A: Write the given values with the suitable variables. d=8.6 MpcH0=69.1 km/s/Mpc Here, d is the…
Q: What is the redshift z of a galaxy 172 Mpc away from us? Note: Assume a value of the Hubble…
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Q: 5) The recessional velocity of a galaxy is found to be 0.52c. Calculate the redshift.
A: Redshift takes place when the source is moving away from the observer. This reduces the frequency…
Q: The Hubble constant is (approximately) 70 kilometers per second per megaparsec. At approximately…
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Q: The Perseus-pices supercluster of galaxies is 64 Mpc from Earth. How long (in years) does it take…
A: Given: Perseus-pices supercluster separation from earth→D=64 Mpc Standard conversion: 1…
Q: In the reading, you were told that there were roughly 10,000 galaxies in the image of the Hubble…
A: Given: one image of hubble ultra deep field is roughly 10 square arcminutes. Number of galaxies 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…
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- Imagine that an observed distant galaxy is measured to have a distance of 20 Mpc by a Type Ia supernovae and the redshift of the galaxy indicates the galaxy appears to be moving away from us at a speed of 2200 km/s. What would the Hubble constant be if measured solely based on this galaxy in units of km/s/Mpc?Certain spiral galaxy is 9.9 Mpc away from us. How fast in km/s is this galaxy moving away from us? Note: Assume a value of the Hubble constant of 71.1 km/s/MpcCalculate the Hubble constant for a universe which is 10 billion years old.
- Suppose you have obtained spectra of several galaxies and have measuerd the observed wavelength of the H-Alpha line (rest wavelength = 656.3 nm) to be Galaxy 1: 658.1 nm. Galaxy 2: 667.1 nm. Galaxy 3: 677.6 nm. Assuming a Hubble Constant of 72.5 km/s/Mpc, calculate the distance to each of these galaxies (answer in Mpc)A galaxy is observed to recede at speed 140 km/s. If the Hubble constant is 70 km/s/ Mpc, how far is the galaxy?Calculate the Hubble constant for a universe that is 20 billion years old.
- The critical density of a universe is around 5×10-27 kg/m³. Estimate the Hubble constant for this universe.Using a value for Hubble's constant of 71 km/s per Mpc, find the distance of a galaxy that is receding at a velocity of 1600 km/s.Please solve page 3 and 4 using the table below NGC NO. Galactic Longitude (deg) Galactic Latitude (deg) Distance from Sun (kpc) Distance (polar view) (kpc) NGC NO. Galactic Longitude (deg) Galactic Latitude (deg) Distance from Sun (kpc) Distance (polar view) (kpc) 1904 227 -30 13 1 1 6402 21 15 9 9 4590 300 36 10 8 6626 8 -6 6 6 5024 333 80 18 3 6637 2 -10 9 9 5272 42 79 10 2 6656 10 -8 3 3 5904 4 47 7 5 6681 3 -12 9 39 6093 353 20 10 9 6356 7 10 15 15 6121 351 16 2 2 6284 358 10 15 15 6171 3 23 6 5 6838 57 -5 4 4 6205 59 41 8 6 6864 20 -26 21 19 6218 16 26 5 5 6981 35 -33 17 14 6254 15 23 4 4 7078 65 -27 10 9 6266 354 7 7 7 7089 53 -36 12 10 6273 357 9 9 9 7099 27 -47 8 5…