Universe: Stars And Galaxies
6th Edition
ISBN: 9781319115098
Author: Roger Freedman, Robert Geller, William J. Kaufmann
Publisher: W. H. Freeman
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Chapter 8, Problem 36Q
To determine
The radial velocity method which is used to detect planets orbiting other stars and to explain the reason why it is not used to detect planets like Earth.
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Nearly all planets that astronomers have found orbiting other stars have been giant planets with masses more like Jupiter than Earth, and with orbits located very close to their parent stars. Does this prove that our Solar System is unique? Explain your answer.
Chapter 8 Solutions
Universe: Stars And Galaxies
Ch. 8 - Prob. 1QCh. 8 - Prob. 2QCh. 8 - Prob. 3QCh. 8 - Prob. 4QCh. 8 - Prob. 5QCh. 8 - Prob. 6QCh. 8 - Prob. 7QCh. 8 - Prob. 8QCh. 8 - Prob. 9QCh. 8 - Prob. 10Q
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- Compare the atmospheric circulation (weather) of the four giant planets.arrow_forwardWhy were giant planets close to their stars the first ones to be discovered? Why has the same technique not been used yet to discover giant planets at the distance of Saturn?arrow_forwardSuppose you wanted to observe a planet around another star with direct imaging. Would you try to observe in visible light or in the infrared? Why? Would the planet be easier to see if it were at 1 AU or 5 AU from its star?arrow_forward
- An exoplanetary system has two known planets. Planet X orbits in 290 days and Planet Y orbits in 145 days. Which planet is closest to its host star? If the star has the same mass as the Sun, what is the semi-major axis of the orbits for Planets X and Y?arrow_forwardHow do the planets discovered so far around other stars differ from those in our own solar system? List at least two ways.arrow_forwardVenus can be as bright as apparent magnitude −4.7 when at a distance of about 1 AU. How many times fainter would Venus look from a distance of 1 pc? What would its apparent magnitude be? Assume Venus has the same illumination phase from your new vantage point. (Hints: Light follows an inverse square law as does gravity, review Section 5-1c; also, review the definition of apparent visual magnitudes, Chapter 2.) (Note: 1 pc = 2.1 × 105 AU.)arrow_forward
- What are the primary constituents of the Jovian planets? (16.5) (a) hydrogen and helium (b) hydrogen and carbon dioxide (c) methane and oxygen (d) nitrogen and oxygenarrow_forwardBarnard’s Star, the second closest star to us, is about 56 trillion (5.61012) km away. Calculate how far it would be using the scale model of the solar system given in Overview of Our Planetary System.arrow_forwardExplain why visual observation of the gas giants is not sufficient to determine their rotation periods, and what evidence was used to deduce the correct periods.arrow_forward
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