Redshift of light from quasar with a “z” value of 3.3 , we are observing quasar as it was_______. 11.7 Billion years ago. 13.2 Billion years ago. 3.3 Billion years ago. 8.2 Billion years ago.
Q: What evidence is there that quasars occur in distant galaxies? Explain.
A: To explain the correct answer is given below,
Q: The large look-back times of the farthest galaxies and quasars is about ______________ of the way…
A: The large look-back times of the farthest galaxies and quasars is about ______________ of the way…
Q: Hubble's law. Hubble found that distant galaxies are receding with a velocity proportional to their…
A: Hubble found that distant galaxies are receding with a velocity proportional to their distance from…
Q: If the cosmological microwave background was emitted by a plasma with a temperature temperature of…
A: The expression from the Wien's displacement law is λmT=k .......................................…
Q: If the luminosity of a quasar varies with a period of one week we can conclude that (a) it is at a…
A: The Quasars have luminosities which lie in the range of L = 10 to 100,000 LMW, where LMW is the…
Q: If a quasar has a recessional velocity of 2.7 × 10 5 km/sec and is determined to be 3600 Mpc, what…
A:
Q: 1. Quasar F (for Far) has the same luminosity as Quasar N (for Near), But F is 10 times further…
A: The relation between luminosity and brightness is given as L = I/d2 where I is apparent brightness…
Q: What was the temperature of the universe when the recombination took place that produced the cosmic…
A: Around 400,000 years after the big bang, the space was completely filled with a hot soup of…
Q: The objects that are detected at the points where the gas of a radio jet hits the extragalactic…
A: The quasar are small and the powerful source if energy that is active core of very distant galaxies.
Q: Which of the following events in the early universe likely came first? a. Formation of the…
A: Answer: (b) Big Bang Nucleosynthesis
Q: Where did the elements heavier than hydrogen and helium come from?
A: Hydrogen and helium emerged from the Big Bang about 13.8 billion years ago. Other elements were…
Q: When we observe the most distant galaxies what are we looking at?
A: Question: When we observe the most Distant galaxies what are we looking at.
Q: A galaxy has a visible mass of 10 Mo and a flat rotation curve extending to 25 kpe at the level of…
A: Let MT denote the total mass of the galaxy. Let R and v denote the radius of the galaxy and velocity…
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: The observable universe I. is the entire universe. II. is the part of the universe we can see.…
A: Answer d. II and IV
Q: 17). If you were to live another 65 years and there was a starship ready to go right now, how fast…
A:
Q: The first evidence for the dark energy was that: a. the cosmic microwave background spectrum was a…
A: The first evidence for dark energy came in 1998 two teams of astronomers measured light coming from…
Q: Explain how the Hubble law allows you to estimate the distances to galaxies.
A: According to Hubble's law, the velocity of galaxy with respect to earth is directly proportional to…
Q: Considering the reactions in primordial nucleosynthesis only, what would be the impact on the…
A: So the lifetime of neutrons is very crucial in shaping the universe as it is now. Even a slight…
Q: In a Universe with Ω=1, without the presence of dark energy, the expansion of the Universe would a.…
A: Dark energy is the energy present in our universe in a high amount which is something 60% and many…
Q: According to the Big Bang Theory, order from earliest to latest, the sequence of events that are…
A: Before the Big bang all the forces were united. During the first fraction of a second, the forces…
Q: observation made on E
A: Based on the observer's point of view the frequency can change this effect is called Doppler shift.…
Q: Hubble law describes how the speed of recession of distant galaxies varies with the distance from…
A: Introduction: Hubble law: It is used for describing the age of the universe since the big bang. It…
Q: The cosmic background radiation comes from a time in the evolution of the universe a. when…
A: Given The cosmic background radiation comes from a time in the evolution of the universe, as…
Q: The observed frequency of radio waves from a distant galaxy is 5 GHz. At the location of galaxy, the…
A: 1. Calculate the redshift of the galaxy. Part(2) I am leaving part(2) as it seems incomplete.
Q: Which of the following is true of the cosmic microwave background radiation as we observe it today?…
A: Given:
Q: 7.) Explain what dark energy implies for the composition and age of the universe.
A: Dark energy is a hypothetical form of energy that is believed to exist in the universe and is…
Q: 1). Astronomical redshift. A galaxy is observed to be receding from us at a speed of 7500 kilometers…
A:
Q: The Cosmic Microwave Background is remarkable in many ways. Let's illustrate this by personalizing…
A:
Q: 3. What are heat engines? How do they work? 2. How is the second law expressed? Give examples. 4…
A: Sadi Carnot, the father of thermodynamics, was one of these scientists, publishing Reflections on…
Q: is Lorentz law? Give definition, background, uses and examples of it.
A:
Q: 17) In an accelerating Universe, the scale factor a. grows at an ever-decreasing rate over time. b.…
A: The scaling factor, represented by a(t), tells us to what extent our universe has expanded. Now if…
Q: ACTIVITY 8. Choose the best answer on the given words inside the box. (Week 8: use module 16-17 as…
A: 1. Parallax 2. Cosmic distance ladder 3. Luminosity 4. Red shift 5. Wavelength
Q: 6) The redshift of a galaxy is observed to be 1.5. Calculate the recessional velocity of the galaxy.
A: Redshift takes place when the source is moving away from the observer. This reduces the frequency…
Q: hist alown, cosmic noon and the present day. histor
A:
Q: What's the average density (in kg/m^3) inside the event horizon of a black hole with mass 4*10^6…
A: The event horizon of a black hole is defined as the surface around the blackhole after which defines…
Q: Big Bang Theory?
A: the ratio helium to hydrogen observed in universe is not a direct piece of evidence in support of…
Q: The presence of Dark Matter was theorized due to the curve of the data that the motion of the stars…
A: Answer:- Answer (1) :- (c) Laws of equal area . Because According to Kepler's second law A…
Q: Which of the following represents the notion that our observable Universe may be a part of a much…
A: To find which represent the notion that our observable universe may be part of much larger whole?
Q: We believe that the big bang occurred 13.8 billion years ago. Give 3 reasons why scientists believe…
A: There are several lines of evidence that support the idea that the universe is 13.8 billion years…
Q: Does Hubble's Law work well for galaxies in the Local Group (such as Andromeda)?
A: Hubble law states that the velocity of the galaxies which are moving away also known as the…
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11.7 Billion years ago.
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13.2 Billion years ago.
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3.3 Billion years ago.
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8.2 Billion years ago.
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