How does CMB temperature power spectrum be an evidence for the exsistance of dark energy?

Expert Solution

genius_generous answered 1 year ago

Explain how CMB data can be used to determine the dark matter content of the Universe.

1. Dark Energy (a) Why is dark energy "dark"? Why is it "energy"? (b) Give at...

1. Dark Energy (a) Why is dark energy "dark"? Why is it "energy"? (b) Give at least one way that dark energy is different from dark matter. Also give at least one way that dark energy is similar to dark matter. (c) What is the difference between the cosmological constant and dark energy?

How does a line spectrum differ from a continuous spectrum? Why does an atom produce a...

How does a line spectrum differ from a continuous spectrum? Why does an atom produce a line spectrum rather than continuous spectrum when energy is added to the atom?

5. A power cycle receives energy QH by heat transfer from a high temperature energy source...

5. A power cycle receives energy QH by heat transfer from a high temperature energy source at TH = 2000 K and rejects energy QL by heat transfer to a low temperature energy sink at TL = 400 K. For each of the following cases determine whether the cycle operate reversibly, irreversibly, or is impossible. (a) QH = 1200 kJ, Wcycle = 1020 kJ. (b) QH = 1200 kJ, QL = 240 kJ. (c) Wcycle = 1400 kJ, QL =...

Inflation (a) Why is it puzzling that the observed CMB temperature is almost exactly the same...

Inflation (a) Why is it puzzling that the observed CMB temperature is almost exactly the same on opposite sides of the sky? How would this result be explained in cosmology theories that do not include inflation? (b) How does inflation answer the puzzle from part (a)? What other properties of the homogeneous universe does inflation explain?

Inflation (a) Why is it puzzling that the observed CMB temperature is almost exactly the same...

Inflation (a) Why is it puzzling that the observed CMB temperature is almost exactly the same on opposite sides of the sky? How would this result be explained in cosmology theories that do not include inflation? (b) How does inflation answer the puzzle from part (a)? What other properties of the homogeneous universe does inflation explain?

Inflation (a) Why is it puzzling that the observed CMB temperature is almost exactly the same...

Inflation (a) Why is it puzzling that the observed CMB temperature is almost exactly the same on opposite sides of the sky? How would this result be explained in cosmology theories that do not include inflation? (b) How does inflation answer the puzzle from part (a)? What other properties of the homogeneous universe does inflation explain?

7. When does mental illness go to the dark side? And how “dark” can that “side”...

7. When does mental illness go to the dark side? And how “dark” can that “side” become? 8. How does mental illness change: A family? A society? A culture?

At the time of recombination (z = 1100), the largest CMB temperature fluctuations (hot spots and...

At the time of recombination (z = 1100), the largest CMB temperature fluctuations (hot spots and cold spots) were 380,000 lightyears in size. What size (in Mpc) are these CMB fluctuations today (1 Mpc = 3.1 × 106 lightyears)? Write two or three sentences about how this size compares to the sizes of galaxy clusters today (which are around 100-150 Mpc in size) and what the connection is between the CMB fluctuations and galaxy clusters.

The heat energy associated with a change in temperature that does not involve a change in...

The heat energy associated with a change in temperature that does not involve a change in phase is given by q=msΔT where q is heat in joules, m is mass in grams, s is specific heat in joules per gram-degree Celsius, J/(g⋅∘C), and ΔT is the temperature change in degrees Celsius. The heat energy associated with a change in phase at constant temperature is given by q=mΔH where q is heat in joules, m is mass in grams, and ΔH...

Question

How does CMB temperature power spectrum be an evidence for the exsistance of dark energy?

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Expert Solution

Related Solutions

Explain how CMB data can be used to determine the dark matter content of the Universe.

1. Dark Energy (a) Why is dark energy "dark"? Why is it "energy"? (b) Give at...

How does a line spectrum differ from a continuous spectrum? Why does an atom produce a...

5. A power cycle receives energy QH by heat transfer from a high temperature energy source...

Inflation (a) Why is it puzzling that the observed CMB temperature is almost exactly the same...

Inflation (a) Why is it puzzling that the observed CMB temperature is almost exactly the same...

Inflation (a) Why is it puzzling that the observed CMB temperature is almost exactly the same...

7. When does mental illness go to the dark side? And how “dark” can that “side”...

At the time of recombination (z = 1100), the largest CMB temperature fluctuations (hot spots and...

The heat energy associated with a change in temperature that does not involve a change in...