A galaxy containing HI gas is moving with a velocity of 150 km/s away fromus (along the line of sight). Calculate the frequency at which we will observethe HI emission line. 5. A galaxy containing HI gas is moving with a velocity of 150 km/s away fromus (along the line of sight). Calculate the frequency at which we will observethe HI emission line.

Answered: Image /qna-images/answer/bf1c4447-fb5e-4d54-a299-bfb0b47f7f37.jpg

Answered: 5. A galaxy containing HI gas is moving…

5. A galaxy containing HI gas is moving with a velocity of 150 km/s away from us (along the line of sight). Calculate the frequency at which we will observe the HI emission line.

Related questions

Q: If p = 2.7 x 10-27 kgm-3, what is the radius of curvature Ro of Einstein's static universe? How long…

A: Given: Density,ρ=2.7×10-27kg/m3Speed of light,c=3×108m/sEinstein's constant,κ=1.86×10-26m/kg Albert…

Q: Distances to local galaxies are determined by measuring the brightness of stars, called Cepheid…

A: Absolute brightness is a constant and is 10 parsecs from Earth whereas measured brightness depends…

Q: Describe a quasar.

A: Quasar is an extremely luminous active galactic nucleus. inside quasar there is a supermassive black…

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: 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: A 2 GHz radio signal is detected from a galaxy as 0.86GHz. Estimate the relative velocity.

A: Like all waves light waves also get Doppler shifted. In the case of light waves, the Doppler shift…

Q: n. Estimate the relative velocity.

A: Given: Lo=2m L=0.75m To find: Relative velocity

Q: When a distant galaxy is observed the violet hydrogen line of 410.173 nm was recorded at 610 nm.…

A: When it comes to light the Doppler effect has to be modified. Light does not require any medium to…

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: The Lyman a line in a galaxy's spectrum was observed to be 208 nm. Calculate the Doppler redshift.

A: When there is relative motion between observer and source the wavelength observed will e shift. When…

Q: Give the peak wavelengths, λpeak, for each of the following cases. State which portion of the…

A: Given,

Q: In class we showed an animated map of the Milky Way HI data as seen in individual velocity slices of…

A: It is known that the 21cm hydrogen line corresponds to a specific frequency of approximately 1420.4…

Q: A galaxy is oberverd to have emission lines of blue hydrogen lines of 434 nm. What will be the…

A: When the relative speed between observer and source gets close to the speed of light, relativistic…

Q: If a galaxy is 10.0 Mpc away from Earth and recedes at 520 km/s, what is Hubble's constant?

A: Edwin Hubble in his observations found that the galaxies were moving away from us instead of getting…

Q: Observations of quasars have shown us that many are extremely _________, emitting more energy than…

A: Required : Fill in the gaps.

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: 3C 273 was the first quasar identified (1963). When we look at its chemical spectrum, we see that…

A: Given:- λobs = 759 nm.λ0 = 656 nm

Q: The hypervelocity star S5HVS1 has a redshifted Hβ line (rest wavelength of 486.135 nm) observed at…

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 galaxy is moving away from Earth. The "blue" hydrogen line at 434 nm emitted from the galaxy is…

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: The CaII H and K lines have rest wavelengths of 396.85 nm and 393.36 nm, respectively. In 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: What is the redshift z of a galaxy 172 Mpc away from us? Note: Assume a value of the Hubble…

Q: Another known cause of red shift in light is the source being in a high gravitational field. Discuss…

A: Red shift can be defined as a phenomenon which is caused due to Doppler Effect where the motion of…

Q: An object is measured to be at a distance of 20 Megaparsecs away from Earth. Using a currently…

A: According to the Hubble's law, galaxies are moving away from Earth at speeds proportional to their…

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: 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…

Question

A galaxy containing HI gas is moving with a velocity of 150 km/s away from
us (along the line of sight). Calculate the frequency at which we will observe
the HI emission line.

5. A galaxy containing HI gas is moving with a velocity of 150 km/s away from
us (along the line of sight). Calculate the frequency at which we will observe
the HI emission line.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Similar questions

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 wavelength
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.)
Suppose an alien race on a distant planet tries to send a message to us, with a laser (light). However, we were unaware that there is a stellar-mass black hole almost directly between us and them. How would this complicate our attempts to locate their position in the Galaxy? O Gravitational lensing would make the signal appear to be coming from a different location O The information carried by the laser (light) would be altered O It would not matter The black hole absorbs all of the light
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?
A galaxy is observed to have emission lines of blue hydrogen lines of 434 nm. If the galaxy has a a recessional velocity of 0.916c calculate the observed wavelength.
Can you answer all of them from this rpoblem?