Are changing-appearance quasars anomalous and in a physically distinct state, or are they just edge instances of quasars during periods of low activity?
Q: What evidence is there that quasars occur in distant galaxies? Explain.
A: To explain the correct answer is given below,
Q: For a quasar jet, show that the maximumn value of B:(0) occurs when the radio source in the jet is…
A: 1st we calculate apperant velocity equation then find beta(apperent) ( beta = v/c) . Then apply…
Q: Galaxies farther away than our local group have, on an average, a recessional velocity given by
A: When we analyze the spectra of galaxies it was found that the spectral lines of most of the galaxies…
Q: 21) If the Hubble's constant for a universe is 25 km/s/Mly. Calculate the distance to a galaxy that…
A: Edwin Hubble discovered through observation that the Universe is expanding. Galaxies are moving away…
Q: Estimate the mass contained in the Milky Way galaxy blackhole.
A: Schwarzschild radius also known as the gravitational radius is the limit to which an object can…
Q: The nuclei of some galaxics are thought to contain supermassive black holes with M = 3 x 10°M9. How…
A: The Schwarzschild radius of a supermassive black hole can be estimated using an empirical…
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: Calculate how far the quasar is in light years by knowing that distance velocity/Ho. Make the…
A:
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: Calculate the critical density of a universe with Hubble constant of 89 km-s¹.Mpc¯¹.
A: It is observed that galaxies are moving away from each other and the farther they are faster they…
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: propose an explanation for the lack of gas, dust, and young stars in elliptical galaxies.
A: The elliptical galaxies are old and dim galaxies. The stars in the elliptical galaxies give out red…
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: A quasar has a redshift of 3.81. What is the recession velocity of this quasar in meters per second?…
A: Givenz=3.81 (redshift) formula for redshiftz=(c+v)(c-v)-1wherec=speed 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: 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: Calculate the temperature for which the ratio of free protons to free neutrons in the early stages…
A: Given information: The ratio of free protons to free neutrons is 7.0 It is mentioned that the…
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: Suppose the Hubble constant were not 22 but 53 km/s per million light-years. Then what would the…
A: Given: New Hubble constant, H' = 53 km/s per million light-years
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: Estimate the critical density of the universe if the Hubble's constant was 100 km/s/Mpc.
A:
Q: The presence of neutral hydrogen in galaxies will be observed with the SKA through the redshifted…
A: Given Data: Rest frame frequency=1420MHz Redshift z=0.5 To Find: The frequency would we need to look…
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: Discuss the possibility that star velocities at the edges of galaxies being greater than expected is…
A: As per the information given by Erik Verlinde, there difference in the type of matter in different…
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: Estimate the critical density of the universe if the Hubble's constant was 50 km/s/Mpc.
A: The minimum density that is required to stop the expansion of the universe is defined as the…
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: Assuming the matter temperature equalled the radiation temperature at the recombination epoch,…
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Q: How competitive are the constraints on Δα/α compared to quasar observations, and how well…
A: It is necessary to consider how well-limited dependency on changes in Newtonian potential is when…
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: 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: Calculate the critical density necessary for a closed universe for two extremes of the Hubble…
A: The critical density necessary for a closed universe for two extremes of the Hubble constant. given,…
Q: Suppose a hypothetical universe is expanding (at some moment in time) at a rate of H. At this same…
A: It is given that, for a universe, at this time,the rate of expanding H=56 km s-1Mpc-1and the density…
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: Quasar 3C 446 has a redshift parameter of 1.404. The variations in its luminosity is observed to…
A:
Are changing-appearance quasars anomalous and in a physically distinct state, or are they just edge instances of quasars during periods of low activity?
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