Why do we not see quasars near our galaxy?
Q: What evidence is there that quasars occur in distant galaxies? Explain.
A: To explain the correct answer is given below,
Q: rmal radiation
A: Given: An active galaxy is explained as,
Q: A starburst galaxy produces only 50 new stars per year. (True or false)
A: A starburst galaxy is known for its high rate of star formation in comparison to the other galaxies.…
Q: Imagine that an observed distant galaxy is measured to have a distance of 40 Mpc by a Type Ia…
A:
Q: Z1 Z2 What is the ratio of reflected sound intensity (J,) to transmitted sound intensity (J;) when…
A: Given acoustic impedance of muscle is Z1 and for bone it's Z2. Incident intensity is Jo. We know…
Q: What is the redshift z of a galaxy 193 Mpc away from us? Note: Assume a value of the Hubble…
A:
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: If we find a galaxy that is moving away at 72,000 km/s, what does Hubble’s law tells us about the…
A:
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: What observation in astronomy, made AFTER the discovery of quasars, was a big help to astronomers in…
A: A quasar is an enormous object same like star. It also shines very brightly. It sends out radio…
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: Because quasars tend to exhibit a strong redshift, we can deduce there are fewer quasars in…
A: Light behaves like a wave and moves with a finite speed. When the source and observer are in…
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: 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: What is the redshift z of a galaxy 156 Mpc away from us? Note: Assume a value of the Hubble…
A:
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: Calculate the Hubble time for a universe with a Hubble constant of sixty kilometers per second per…
A: Given:Hubble's constant, Ho = 60km/(s Mpc)Asked:Hubble's Time, tH = ?
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: What does the redshift of the galaxies tell us about their motion with respect to the Earth?
A: The displacement of the spectrum of an astronomical object toward longer wavelength (red) due to the…
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: 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 do we know andromeda galaxy is moving towards us?
A: Andromeda Galaxy is the closest galaxy to Milky Way at 2.5 million light-years. Unlike other…
Q: Galaxy A is measured to have a smaller cosmological redshift than Galaxy B. Which galaxy is farther…
A: Redshift: It is stated as the change in the frequency of the light and is used to study the position…
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: 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 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: 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: Through the use of various measurement techniques, it has been found that most galaxies are rapidly…
A: Through the use of various measurement techniques, it has been found that most galaxies are rapidly…
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: Is the appearance of a quasar changing over time a sign that it has entered a new physical state, or…
A: Required : Are the quasars changing over time the extreme outliers of quasars at low activity ?
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