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88 Activity 24 Extrasolar Planets A. In Figure 2 we show the observed radial velocity of the star as a function of time.' The points are the actual data and the solid line is a theoretical fit to the data. What is the approximate peak (maximum) radial velocity of the star 51 Peg? 65m/s 60 60 Velocity(m/s) 40 농심 상공 20

88 Activity 24 Extrasolar Planets A. In Figure 2 we show the observed radial velocity of the star as a function of time.' The points are the actual data and the solid line is a theoretical fit to the data. What is the approximate peak (maximum) radial velocity of the star 51 Peg? 65m/s 60 60 Velocity(m/s) 40 농심 상공 20

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
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88 Activity 24 Extrasolar Planets B A. In Figure 2 we show the observed radial velocity of the star as a function of time.' The points are the actual data and the solid line is a theoretical fit to the data. What is the approximate peak (maximum) radial velocity of the star 51 Peg? 65m/s Velocity(m/s) 60 40 20 220 40 -60 0 1 2 Time (d) 3 4 FIGURE 2. Left: Radial velocity of the star as a function of time. Solid curve-theoretical, dots- experimental data. B. In Figure 3 we show the radial velocity of the invisible planet as a function of time as derived from a gravitational model of the system. What is the largest radial velocity of the planet? (Note that the units of the y-axis in Figure 3 are km/s.) Convert this from km/s to m/s. 150 100 Velocity(kms) 0 g -50 -100 1 2 3 Time (d) 4 FIGURE 3. Radial velocity of the planet derived from the theoretical model. 5 C. To keep our calculations extremely simple, we want only a rough approximation to the ratio of the peak velocity of the star to the peak velocity of the planet. Which of the following is a reasonable approximation to the peak velocity of the star? a) 50 m/s, b) 120 km/s, c) 60 m/s, d) 70 m/s.
Transcribed Image Text:88 Activity 24 Extrasolar Planets B A. In Figure 2 we show the observed radial velocity of the star as a function of time.' The points are the actual data and the solid line is a theoretical fit to the data. What is the approximate peak (maximum) radial velocity of the star 51 Peg? 65m/s Velocity(m/s) 60 40 20 220 40 -60 0 1 2 Time (d) 3 4 FIGURE 2. Left: Radial velocity of the star as a function of time. Solid curve-theoretical, dots- experimental data. B. In Figure 3 we show the radial velocity of the invisible planet as a function of time as derived from a gravitational model of the system. What is the largest radial velocity of the planet? (Note that the units of the y-axis in Figure 3 are km/s.) Convert this from km/s to m/s. 150 100 Velocity(kms) 0 g -50 -100 1 2 3 Time (d) 4 FIGURE 3. Radial velocity of the planet derived from the theoretical model. 5 C. To keep our calculations extremely simple, we want only a rough approximation to the ratio of the peak velocity of the star to the peak velocity of the planet. Which of the following is a reasonable approximation to the peak velocity of the star? a) 50 m/s, b) 120 km/s, c) 60 m/s, d) 70 m/s.
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