What are the similarities and differences between blazars and quasars?
Q: What evidence is there that quasars occur in distant galaxies? Explain.
A: To explain the correct answer is given below,
Q: You have discovered a galaxies which is extremely red. Based on the redshift of this galaxy, you…
A: This problem is based on the Hubble’s law. According to this law, we have the following expression.…
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: Are changing-look quasars an anomaly and in physically different state or are just edge cases of…
A: Quasars are active galctic nucleus, whose mass is changing milliions or billions times count than…
Q: Calculate the redshift associated with a galaxy with a recessional velocity of 0.916c.
A: The change in frequency when observer and source are in relative motion is called the Doppler…
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: how might you be misled if you studied only the brightest galaxies in a cluster?
A: There are some of the observations which may mislead if you studied only the brightest galaxies in…
Q: Calculate how far the quasar is in light years by knowing that distance velocity/Ho. Make the…
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Q: What evidence shows that quasars are ultra-luminous but must be small?
A: Given- What evidence shows that quasars are ultra-luminous but must be small?
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: No, they're not. They're just edge cases of the quasars that aren't pulsing at the moment.
A: Given: Quasars are active galactic nuclei with mass changes measured in millions or billions of…
Q: What Hubble constant corresponds to an approximate age of the universe of 1010 y? To get an…
A:
Q: Calculate how far the quasar is in light years by knowing that distance = velocity/Ho. Make the…
A: Given: To find the distance of the quasar in light years is given as,
Q: Find the distance to a galaxy whose redshift reveals that it's re- ceding from us at 2.5×104 km/s.
A: As per the Hubble expansion, the universe is expanding. This was observed from the galaxies moving…
Q: Describe the differences between Seyfert 1 and Seyfert 2 galaxies.
A: the problem is based on the concept of astronomy. The problem mainly deals with types of galaxies…
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: 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: At what redshift will the Lya line (2o = 1215°A) be centered in the Johnson-Cousins U band? (Quasars…
A: From the redshift formula, we have 1+z=λobsλemitz=redshiftλobs=obserevd…
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: Quasars that change appearance are they physically distinct or merely edge examples of quasars…
A: Give: Quasars are active galctic nuclei whose mass fluctuates by millions or billions of times the…
Q: What is the name of the radiation process that produces the radio emission in the jets emitted by…
A: Active galaxies are known as quasars. An ordinary galaxy will have about 100,000 times the…
Q: Why do we see most quasars at great distances?
A: In the whole universe Quasar are like those of astronomical object whose luminous comparable to…
Q: Assume that the number density of stars in the Milky Way is 0.14 pc-3. (e) There are 10" stars…
A: Given, Number density of star is, ρ = 0.14 pc-3 Total number of stars in galaxy, N=1011 Let d is the…
Q: Fourteen years ago, a quasar was found to be located 8 billion light years away. If the age of the…
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Q: Observations of quasars have shown us that many are extremely _________, emitting more energy than…
A: Required : Fill in the gaps.
Q: Is the appearance of a quasar changing over time a sign that it has entered a new physical state, or…
A: Introduction: A quasar (sometimes referred to as a quasi-stellar object, abbreviated QSO) is an A…
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: Use the redshift of 3.8 for 4C41.17, a powerful radio galaxy, to determine the distance of the…
A: (a) the speed of the galaxy is, vc=z+12-1z+12+1vc=3.8+12-13.8+12+1=0.917v=0.9173×105 km/s=2.75×105…
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: Consider a supermassive black hole near the center of a galaxy. Calculate the radius of such an…
A: A supermassive black hole is a black hole that has its mass in the range between 105 to 1010 solar…
Q: What is the mechanism for the energy output of quasars?
A: Quasars are high luminosity objects in the galaxy, having very high masses (ranging from millions to…
Q: How many of you have been caught in a massive traffic jam on the NJ Turnpike or interstate only to…
A: please see the next step for solution
Q: ___________ are generally expected to be found at the center of most galaxies. If large amounts of…
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Q: ring galaxies often have nearby companions. What does that suggest?
A: The origin of ring galaxies is often debated. Some scientists believe that ring galaxies have formed…
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: Why do we not see quasars near our galaxy?
A: Introduction: The word quasar stands for quasi-stellar radio source because the signals came from…
Q: Assume that the umber density of stars in the Milky Way is 0.14 pc-3. There are 10" stars uniformly…
A: Concept: Consider d be the minimum distance of the supernova and the earth to survive in the earth.…
Q: What evidence do we have that quasars are a few parsecs or smaller in size?
A: The problem is based on the concept of Quasar. A quasar is an extremely luminous active galactic…
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: Quasar 3C 446 has a redshift parameter of 1.404. The variations in its luminosity is observed to…
A:
Q: The Hydrogen Balmer line Hg has a wavelength of 486.1 nm. This wavelength is shifted to 563.9 nm in…
A: λ0 = 486.1 nm = 486.1 x 10-12 , λ = 563.3 nm = 563.3 x 10-12 c = 3 x 105 km /s To find = quasar…
Q: when did the quasar emit the light that was observed?
A: Since, the quasar was found to be 8 billion light years away, the last light emitted by quasar was 8…
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…
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