Foundations of Astronomy (MindTap Course List)
14th Edition
ISBN: 9781337399920
Author: Michael A. Seeds, Dana Backman
Publisher: Cengage Learning
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Textbook Question
Chapter 22, Problem 10P
If you were to record the spectrum of Saturn as well as the A ring, you would find light from one edge of the rings red shifted and light from the other edge blueshifted. If you observed a spectral line at a wavelength of 500.000 nm, what difference in wavelength should you expect between the opposite edges of the rings? (Hints: See Problem 9, and use the formula for Doppler shift, Eq. 7-3.)
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If you were to record the spectrum of Saturn as well as the A ring, you would find light from one edge of the rings redshifted and light from the other edge blueshifted. If you observed a spectral line at a wavelength of 480 nm, what difference in wavelength (in nm) should you expect between the opposite edges of the rings? (Hints: The radius of the edge of the A ring is 136,500 km. Use the formula for orbital velocity,
Vc =
GM
r
and the formula for Doppler shift,
Vr
c
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.
If you were to record the spectrum of Saturn as well as the A ring, you would find light from one edge of the rings redshifted and light from the other edge blueshifted. If you observed a spectral line at a wavelength of 505 nm, what difference in wavelength (in nm) should you expect between the opposite edges of the rings? (Hints: The radius of the edge of the A ring is 136,500 km. Use the formula for orbital velocity,
At what average distances (in AU) from the Sun would you expect to find Kirkwood gaps where the orbital period of asteroids are respectively four-ninths, and two-fifths, of the orbital period of Jupiter? (Hint: use Kepler's third
law.)
inner gap at
AU
outer gap at
AU
Compare your results with the figure.
7:2
3:1
8,3 5;2
7:3 9:4
2;1
9:5 7:4 53 8:5
3:2
Resonances
Gap
Gap
Gap Gap GapGap
Gap
Distance from sun (AU)
O The results agree with the figure.
O The results do not agree with the figure.
Chapter 22 Solutions
Foundations of Astronomy (MindTap Course List)
Ch. 22 - Describe four differences between the Jovian...Ch. 22 - Why is Jupiter more oblate than Earth? Just...Ch. 22 - Which molecules and atoms are Jupiter and Saturn...Ch. 22 - What determines which cloud layers are found at...Ch. 22 - Describe a hypothesis explaining why Jupiter emits...Ch. 22 - How does beltzone circulation transport energyby...Ch. 22 - Why are belts and zones wrapped entirely around...Ch. 22 - What ingredients are needed to power a dynamo...Ch. 22 - Why are magnetic phenomena such as extensive...Ch. 22 - How do the interiors of Jupiter and Saturn differ?...
Ch. 22 - Which planet formation step did the Jovian planets...Ch. 22 - Why is Jupiters moon lo called a regular...Ch. 22 - Why is Saturns moon Phoebe called an irregular...Ch. 22 - If Jupiter had a satellite the size of our own...Ch. 22 - The density of Earths Moon is 3.3 g/cm3. Which of...Ch. 22 - Ganymede was once completely molten on the inside....Ch. 22 - Describe evidence of tectonic features seen on...Ch. 22 - Why are no craters seen on lo and few seen on...Ch. 22 - Why should you expect lo to suffer more impacts...Ch. 22 - How can you be certain that Jupiters rings do not...Ch. 22 - Why are the belts and zones in the atmosphere of...Ch. 22 - Describe the composition of Saturn from its center...Ch. 22 - If Saturn had no moons, do you think it would have...Ch. 22 - How can Titan keep an atmosphere when Titan is...Ch. 22 - What should the interior composition of Titan be...Ch. 22 - If you were able to stand on the surface of Titan...Ch. 22 - Does Titan experience volcanism today? Impact...Ch. 22 - Describe the types of geological activity observed...Ch. 22 - More Jovian moons are geologically active than...Ch. 22 - Prob. 30RQCh. 22 - If you piloted a spacecraft to visit Saturns moons...Ch. 22 - The ring systems around Jupiter and Saturn lie...Ch. 22 - Saturns rings are primordial, meaning that they...Ch. 22 - What is understood to be the cause of gaps in ring...Ch. 22 - What is understood to be the cause of ripples in...Ch. 22 - Why would you expect research in archaeology to be...Ch. 22 - What is the angular diameter of Jupiter as seen...Ch. 22 - Prob. 2PCh. 22 - What is the angular diameter of Jupiter as seen...Ch. 22 - What is the escape velocity from the surface of...Ch. 22 - Calculate the mass of Callisto using a value for...Ch. 22 - Prob. 6PCh. 22 - Calculate the radius of Jupiters Roche limit for a...Ch. 22 - How long does the eastward wind at the equator of...Ch. 22 - What is the orbital velocity and period of a ring...Ch. 22 - If you were to record the spectrum of Saturn as...Ch. 22 - Prob. 11PCh. 22 - Jupiter is about 71,000 km in radius. The...Ch. 22 - Saturn is about 60,000 km in radius, and its rings...Ch. 22 - Look at Figure 22-4b. Compare the visual and UV...Ch. 22 - Prob. 2LTLCh. 22 - Prob. 3LTLCh. 22 - The Cassini spacecraft recorded the image shown...
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