The Cosmic Perspective (9th Edition)
9th Edition
ISBN: 9780134874364
Author: Jeffrey O. Bennett, Megan O. Donahue, Nicholas Schneider, Mark Voit
Publisher: PEARSON
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Chapter 13, Problem 50EAP
Transit of TrES-1. The planet TrES-1, orbiting a distant star, has been detected by both the transit and the Doppler method, so we can calculate its density and get an idea of what kind of planet it is.
- Using the method of Mathematical Insight 13.3, calculate the radius of the transiting planet. The planetary transits block 2% of the star’s light. The star TrES-1 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
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Kepler-444 is one of many stars with terrestrial planets that is over 10 billion
a) What do you think the spectral type of Kepler-444 might be?
b) How do stars of this spectral type end their lives?
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planet?
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the typical nearest planet?
уears
old.
Why are we unlikely to find Earth-like planets around halo stars in the Galaxy?
A. Halo stars formed in a different way from disk stars.
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C. Halo stars formed in an environment where there were few heavy elements to create rocky planets.
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White Dwarf Size II. The white dwarf, Sirius B, contains 0.98 solar mass, and its density is about 2 x 106 g/cm?. Find the radius of the white dwarf in km to three significant digits. (Hint: Density = mass/volume, and the volume of a
4
sphere is Tr.)
3
km
Compare your answer with the radii of the planets listed in the Table A-10. Which planet is this white dwarf is closely equal to in size?
I Table A-10 I Properties of the Planets
ORBITAL PROPERTIES
Semimajor Axis (a)
Orbital Period (P)
Average Orbital
Velocity (km/s)
Orbital
Inclination
Planet
(AU)
(106 km)
(v)
(days)
Eccentricity
to Ecliptic
Mercury
0.387
57.9
0.241
88.0
47.9
0.206
7.0°
Venus
0.723
108
0.615
224.7
35.0
0.007
3.4°
Earth
1.00
150
1.00
365.3
29.8
0.017
Mars
1.52
228
1.88
687.0
24.1
0.093
1.8°
Jupiter
5.20
779
11.9
4332
13.1
0.049
1.30
Saturn
9.58
1433
29.5
10,759
9.7
0.056
2.5°
30,799
60,190
Uranus
19.23
2877
84.3
6.8
0.044
0.8°
Neptune
* By definition.
30.10
4503
164.8
5.4
0.011
1.8°
PHYSICAL PROPERTIES (Earth = e)…
Chapter 13 Solutions
The Cosmic Perspective (9th Edition)
Ch. 13 - Prob. 1VSCCh. 13 - Prob. 2VSCCh. 13 - Prob. 3VSCCh. 13 - Prob. 4VSCCh. 13 - Prob. 5VSCCh. 13 - I. Why are extrasolar planets hard to detect...Ch. 13 - 2. What are the two major approaches to detecting...Ch. 13 - 3. How can gravitational lugs from orbiting...Ch. 13 - Prob. 4EAPCh. 13 - Briefly describe Ihe Doppler method. Summarize the...
Ch. 13 - How does the transit method work’ What was the...Ch. 13 - Prob. 7EAPCh. 13 - Prob. 8EAPCh. 13 - Prob. 9EAPCh. 13 - Prob. 10EAPCh. 13 - Prob. 11EAPCh. 13 - Prob. 12EAPCh. 13 - Prob. 13EAPCh. 13 - Prob. 14EAPCh. 13 - Prob. 15EAPCh. 13 - Prob. 16EAPCh. 13 - Prob. 17EAPCh. 13 - Prob. 18EAPCh. 13 - Prob. 19EAPCh. 13 - Decide whether the statement makes sense lor is...Ch. 13 - Prob. 21EAPCh. 13 - Prob. 22EAPCh. 13 - Prob. 23EAPCh. 13 - Prob. 24EAPCh. 13 - Decide whether the statement makes sense lor is...Ch. 13 - Prob. 26EAPCh. 13 - Prob. 27EAPCh. 13 - Choose Lhe best ansuter to each of the following....Ch. 13 - Choose Lhe best ansuter to each of the following....Ch. 13 - Choose Lhe best ansuter to each of the following....Ch. 13 - Choose Lhe best ansuter to each of the following....Ch. 13 - Choose Lhe best ansuter to each of the following....Ch. 13 - Choose Lhe best ansuter to each of the following....Ch. 13 - Choose Lhe best ansuter to each of the following....Ch. 13 - Choose Lhe best ansuter to each of the following....Ch. 13 - Choose Lhe best ansuter to each of the following....Ch. 13 - Choose Lhe best ansuter to each of the following....Ch. 13 - When is a Theory Wrong? As discussed in this...Ch. 13 - Prob. 40EAPCh. 13 - Prob. 42EAPCh. 13 - Prob. 43EAPCh. 13 - Comparing Methods. What are the strengths and...Ch. 13 - No Hot Jupiters Here. How do we think hot Jupiters...Ch. 13 - Prob. 46EAPCh. 13 - Prob. 47EAPCh. 13 - Lost in the Glare. This exercise helps you...Ch. 13 - Transit of TrES-1. The planet TrES-1, orbiting a...Ch. 13 - Planet Around 51 Pegasi. The star 51 Pegasi has...Ch. 13 - Identical Planets? Imagine two planets orbiting a...
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