One of the largest observed redshifts for a galaxy is 8.6 from the galaxy UDFy-38135539. How fast is the galaxy moving with respect to us? How far away is it?
Q: The Centaurus supercluster of galaxies is 52 Mpc from Earth. How long (in years) does it take light…
A: Given that The Centaurus supercluster of galaxies is 52 Mpc from Earth. then we have to determine…
Q: The temperature of the CMB today is T=2.725 K. Calculate the temperature of the CMB at redshift…
A: Given T = To = 2.725 K z = 2000 Temperature of CMB at redshift 'z' is given by T = To (1+z)
Q: The expanding bubble of hot gas shown in the figure, which has been inflated by the light from a…
A:
Q: Using our example from the previous unit, let's try to determine the Hubble time for this example…
A: Solution Given dataSpeed v=4000km/sDistance d=20Mpcwhat would the age of that universe be in…
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 hydrogen Balmer line H? has a wavelength of 486.1 nm. It is shifted to 536.0 nm in a quasar's…
A: it is question of atomic spectral series. find the number of balmer line for wavelength of 486.1 nm…
Q: Suppose a galaxy is moving away from Earth at a speed 0.78c. It emits radio waves with a wavelength…
A: Doppler effect is the change in frequency and wavelength of a wave due to the motion of the source…
Q: The redshift of a galaxy is observed to be 0.5. Calculate the recessional velocity of the galaxy.
A: When a light source moves away from the observer the wavelength will shift towards the red region of…
Q: The observed frequency of radio waves from a distant galaxy is 5 GHz. At the location of the galaxy,…
A: When the source of electromagnetic radiation moves away from the observer the frequency will…
Q: The hydrogen Balmer line H, has a wavelength of 486.1 nm. It is shifted to 579.2 nm in a quasar's…
A: The original wavelength of hydrogen Balmer line is given as, λo=486.1 nm. The shifted wavelength of…
Q: A Type la supernova explodes in a galaxy at a distance of 8.70 x 10' light-years from Earth. If…
A: Given value--- Hubble constant = 68.1 km/s/Mpc . distance of galaxy from Earth = 8.70 × 107 light…
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 we knew that a distant galaxy were 8.56 x 1021 meters away from earth, what velocity could we…
A: The velocity of a distant galaxy can be calculated using Hubble's Law. Hubble's Law states that the…
Q: Explain why galaxies can have different shapes. please explain briefly and clearly
A: Reason why galaxies have different shapes : When we gaze up into the night sky, we can see stars…
Q: Based on Figure 1 below, which galaxies are moving away from us the fastest? Velocity (km/sec) 2000…
A: first option is correct
Q: A galaxy with a spherically symmetric distribution of matter has a mass density profile of the type…
A:
Q: If an O-type star and our galaxy were at the same distance, which would have a greater magnitude? a)…
A: Given: The O-type star and our galaxy at same distance. The apparent magnitude decreases with the…
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: Can we measure distances to other galaxies using parallax? Why or why not?
A:
Q: What value for the Hubble constant would another galaxy in the universe observe?
A: ANS: c) a unique Hubble constant for that specific location in the universe.
Q: A drill bit is able to reach 2000 rpm in 0.50 s. Assuming a constant angular acceleration, how many…
A: Given: The final angular speed of the drill is dω=2000 rpm= 2000×2π60 s=209.44 rads. Time required…
Q: The hypervelocity star S5HVS1 has a redshifted Hβ line (rest wavelength of 486.135 nm) observed at…
A:
Q: The hydrogen Balmee lime Hb has a wavelength of 4.86.1 nm. It is shifted to 55.8 nm in a quasar's…
A: The expression for the red shift is,
Q: A black hole (m = 2.90 x 10^9 Ms) sits in the middle of the M87 galaxy. Calculate its gravitational…
A: mass of black hole = 2.90×109 MsMs = 1.99×1030 kg
Q: Certain spiral galaxy is 9.7 Mpc away from us. How fast in km/s is this galaxy moving away from us?
A: Given, Distance of Galaxy is = 9.7 MPC We need to calculate, velocity of Galaxy is = ?
Q: 6. If a spiral galaxy is 20' in diameter and you measure its distance to be 1 Mpc, what is its…
A:
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: 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: 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: One of our closest stars is our Sun, duh. If the distance from Earth to our Sun is 1.56e-05…
A: Solution: The speed of the star is obtained by the Hubble relation, v=H0d…
Q: The matter density in the Universe today is Pm = kg m-3. What would 2.7 x 10-27 be the value of the…
A:
Q: The hydrogen Balmer line H, has a wavelength of 486.1 nm. It is shifted to 580.7 nm in a quasar's…
A: We know that the red shift is given as shown below. where so,
Q: Based on comparison with the Moon, it can be calculated that Andromeda would have to have a diameter…
A:
One of the largest observed redshifts for a galaxy is 8.6 from the galaxy UDFy-38135539. How fast is the galaxy moving with respect to us? How far away is it?
Step by step
Solved in 5 steps with 5 images
- Suppose a galaxy is moving away from Earth at a speed of 0.78c. It emits radio waves of 0.680 m. What wavelength would we detect on Earth? with a wavelengthDoes Hubble's Law work well for galaxies in the Local Group (such as Andromeda)? No, because dark energy is accelerating the universe's expansion over those distances. No, because we do not know the precise value of Ho. No, because Hubble did not know the Local Group existed when he discovered his law. Yes, it works well for all galaxies. No, because galaxies in the Local Group are bound gravitationally together.You find a small satellite galaxy orbiting 66 kpc from the center of a larger galaxy at a speed of 210 km/s. What is the total mass of the galaxy-satellite galaxy system? (Give your answer in terms of MSun.)
- The Perseus-pices supercluster of galaxies is 64 Mpc from Earth. How long (in years) does it take light from the supercluster to reach Earth?In the reading, you were told that there were roughly 10,000 galaxies in the image of the Hubble Ultra Deep Field alone. The image is roughly 10 square arcminutes and there are roughly 1.5*10^8 square arcminutes composing the entire sky. With that in mind and assuming that the Hubble Ultra Deep Field represents an average part of the sky, roughly how many galaxies may exist in the observable universe? (Please include commas for every factor of 1,000; for example 2,343,567,890)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/Mpc
- Distance Based on the graph above, the expansion rate of galaxies near us is than galaxies that are farther away. O faster slower O the same rate VelocityFigure 2 shows the "rotation curve" of NGC 2742. It plots the “radial velocity (V)" (how fast material is moving either toward or away from us) that is measured for objects at different distances (R = radius") from the center of the galaxy. The center of the galaxy is at 0 kpc (kiloparsecs) with a speed of 9 km/sec away from us. (These velocities have been corrected for the observed tilt of the galaxy and represent true orbital velocities of the stars and gas.) 200 100 U4779 -100 As you can see, one side of the galaxy is moving with a negative velocity (spinning toward us), while the other side has a positive velocity (spinning away from us). Using Newton's gravity equation, we will be able to determine the gravitational mass of the entire galaxy and how the mass varies versus distance from the galaxy's center. -200 -8 8 -4 Radius (kpc) Read the following text carefully and follow the instructions: Select five radii spaced evenly from 0-10 kpc across the galaxy. Your selections should…A 7 GHz radio wave is emitted from a galaxy and is observed to be 5 GHz. Calculate the redshift of the galaxy.