The Essential Cosmic Perspective (8th Edition)
8th Edition
ISBN: 9780134446431
Author: Jeffrey O. Bennett, Megan O. Donahue, Nicholas Schneider, Mark Voit
Publisher: PEARSON
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Chapter 10, Problem 46EAP
Transit of TrES-1. The planet TrES-1, orbiting a distant star, has been detected by both the transit and the Doppler technique, so we can ca lculate its density and get an idea of what kind of planet it is.
- Using the method of Cosmic Calculations 10.11£1, calculate the radius of the transiting planet. The planetary transits block 2% of the star's light. The star that TrES-1 orbits has a radius of about 85% of our Sun's radius.
- The mass of the planet is approximately 0.75 times the mass of Jupiter, and Jupiter's mass is about 1.9 x 1027 kilograms. Calculate the average density of the planet. Give your answer in grams per cubic centimeter. Compare this density to the average densities of Satum {0.7 g/cm3 and Earth (5.5 g/cm 3). I s the planet terrestrial or jovian in nature?
(Hint: To find the volume of the planet, use the formula for the volume of a sphere: V = ¼11'r3 • Be careful with unit conversions.)
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Chapter 10 Solutions
The Essential Cosmic Perspective (8th Edition)
Ch. 10 - Prob. 1VSCCh. 10 - Prob. 2VSCCh. 10 - Prob. 3VSCCh. 10 - 4. Match the planet's po,sitions at points 1, 2,...Ch. 10 - How would the plot change if the planet were more...Ch. 10 - Prob. 1EAPCh. 10 - Prob. 2EAPCh. 10 - Prob. 3EAPCh. 10 - Prob. 4EAPCh. 10 - Prob. 5EAP
Ch. 10 - Prob. 6EAPCh. 10 - Prob. 7EAPCh. 10 - Prob. 8EAPCh. 10 - Prob. 9EAPCh. 10 - Prob. 10EAPCh. 10 - Prob. 11EAPCh. 10 - Prob. 12EAPCh. 10 - Prob. 13EAPCh. 10 - Prob. 14EAPCh. 10 - Prob. 15EAPCh. 10 - Prob. 16EAPCh. 10 - Prob. 17EAPCh. 10 - Prob. 18EAPCh. 10 - Prob. 19EAPCh. 10 - Prob. 20EAPCh. 10 - Prob. 21EAPCh. 10 - Prob. 22EAPCh. 10 - Prob. 23EAPCh. 10 - Prob. 24EAPCh. 10 - Prob. 25EAPCh. 10 - Prob. 26EAPCh. 10 - 27. Which method co uld detect a planet in an...Ch. 10 - Prob. 28EAPCh. 10 - 29. Which one of the following can the transit...Ch. 10 - 30. To determine a planet's average density, we...Ch. 10 - 31. Based on the model types shown in Figure 10.12...Ch. 10 - Prob. 32EAPCh. 10 - 33. The term "super-Earth" refers to a planet that...Ch. 10 - 34. What's the best explanation for the location...Ch. 10 - 35. Based on computer models, when is planei ary...Ch. 10 - Prob. 36EAPCh. 10 - When Is a Theory Wrong? As discussed in this cha...Ch. 10 - Unanswe,erd Questions. As discussed in this...Ch. 10 - Prob. 39EAPCh. 10 - 40. Explaining the Doppler Method. Explain how the...Ch. 10 - Prob. 41EAPCh. 10 - 42. No Hot Jupiters Here. How do we think hot...Ch. 10 - 43. Low-Density Planets. Only one planet in our...Ch. 10 - Prob. 44EAPCh. 10 - Prob. 45EAPCh. 10 - Transit of TrES-1. The planet TrES-1, orbiting a...Ch. 10 - 47. Planet Around 51 Pegasi. The star 51 Pegasi...Ch. 10 - Prob. 48EAPCh. 10 - Prob. 49EAPCh. 10 - Prob. 50EAPCh. 10 - Prob. 51EAP
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