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Chapter 12: Problem 13

Both Jupiter and Saturn emit more energy than they receive from the Sun in the form of sunlight. Compare the internal energy sources of the two planets that produce this emission.

Short Answer

Expert verified
Both Jupiter and Saturn generate more energy than they receive from the Sun, due to stored gravitational energy from their formation. Jupiter also generates heat from the radioactive decay of elements in its core, while Saturn has an additional energy source due to 'helium precipitation'.

Step by step solution

01

Understanding Jupiter’s internal Energy Source

Jupiter's internal energy source is primarily due to the gravitational energy that was stored from its formation. Also, the decay of radioactive elements in its rocky core generates heat. This energy is then emitted outward and is more than what Jupiter receives from the Sun.
02

Understanding Saturn’s Internal Energy Source

Similar to Jupiter, one of Saturn's internal energy sources is stored gravitational energy from its formation. Moreover, as helium sinks towards the core, it produces heat known as 'helium precipitation'. This extra heat is what enables Saturn to emit more energy than it receives from the Sun.
03

Comparing the Internal Energy Sources

Both Jupiter and Saturn have internal energy sources that arise from their formation and from their different core compositions. The primary difference is that Saturn has an additional energy production mechanism due to 'helium precipitation', giving it a unique position among the gas giants.

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Most popular questions from this chapter

Suppose you were asked to design a mission to Jupiter involving an unmanned airplanelike vehicle that would spend many days (months?) flying through the Jovian clouds. What observations, measurements, and analyses should this aircraft be prepared to make? What dangers might the aircraft encounter, and what design problems would you have to overcome?

What is liquid metallic hydrogen? What is its significance for Jupiter?

If Saturn's rings are not solid, why do they look solid when viewed through a telescope?

Suppose that Saturn were somehow moved to an orbit around the Sun with semimajor axis \(1 \mathrm{AU}\), the same as the Earth's. Discuss what long- term effects this would have on the planet and its rings.

Explain why Saturn is more oblate than Jupiter, even though Saturn rotates more slowly.
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