Universe: Stars And Galaxies
6th Edition
ISBN: 9781319115098
Author: Roger Freedman, Robert Geller, William J. Kaufmann
Publisher: W. H. Freeman
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Question
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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Students have asked these similar questions
Doppler shift lets you see a star
move back and forth.
look larger and smaller.
look bluer and redder-but the shift is extremely small and is visible only if is moving towards
and away from you, so it only works from certain viewing angles.
O look brighter and dimmer.
O The Doppler shift brightens up a dim planet so you can see it.
Which of these views cannot be used when trying to
detect exoplanets using the radial velocity method? XYZ
all of these can be observed using the radial velocity
method none of these can be observed using the radial
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X
Y
Z
all of these can be observed using the radial velocity
method
none of these can be observed using the radial velocity
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Figure X
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Figure Y
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Figure Z
to Earth
Which of the systems above could not be detected using the transit
method?
What would be the angular diameter (in arc seconds) of a planet with diameter 8.5 x 105 km and orbital distance from it's star of 175 x 108 km as seen from a planet with. orbital distance from the same star of 70 x 107 km as seen from their closest approach?
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
Ch. 8 - Prob. 11QCh. 8 - Prob. 12QCh. 8 - Prob. 13QCh. 8 - Prob. 14QCh. 8 - Prob. 15QCh. 8 - Prob. 16QCh. 8 - Prob. 17QCh. 8 - Prob. 18QCh. 8 - Prob. 19QCh. 8 - Prob. 20QCh. 8 - Prob. 21QCh. 8 - Prob. 22QCh. 8 - Prob. 23QCh. 8 - Prob. 24QCh. 8 - Prob. 25QCh. 8 - Prob. 26QCh. 8 - Prob. 27QCh. 8 - Prob. 28QCh. 8 - Prob. 29QCh. 8 - Prob. 30QCh. 8 - Prob. 31QCh. 8 - Prob. 32QCh. 8 - Prob. 33QCh. 8 - Prob. 34QCh. 8 - Prob. 35QCh. 8 - Prob. 36QCh. 8 - Prob. 37QCh. 8 - Prob. 38QCh. 8 - Prob. 39QCh. 8 - Prob. 40QCh. 8 - Prob. 41QCh. 8 - Prob. 42QCh. 8 - Prob. 43QCh. 8 - Prob. 44QCh. 8 - Prob. 45QCh. 8 - Prob. 46QCh. 8 - Prob. 47QCh. 8 - Prob. 48QCh. 8 - Prob. 49QCh. 8 - Prob. 50QCh. 8 - Prob. 51QCh. 8 - Prob. 52Q
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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
- 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_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_forwardCompare the atmospheric circulation (weather) of the four giant planets.arrow_forward
- Why is it so hard to see planets around other stars and so easy to see them around our own?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_forwardDo all planetary systems look the same as our own?arrow_forward
- Why would a tourist brochure (of the future) describing the most dramatic natural sights of the giant planets have to be revised more often than one for the terrestrial planets?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_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_forward
- Why is Pluto not considered a major planet, and what other peculiarity distinguishes it from the major planets?arrow_forwardDescribe the two mains methods of detecting planets around other stars.arrow_forwardA certain binary system consists of two stars that have equal masses and revolve in circular orbits around a fixed point half-way between them. If the orbital velocity of each star is v=186 km/s and the orbital period of each is 11.3 days, calculate the mass M of each star. Give your answer in units of the solar mass, 1.99×1030 kg (e.g. if each planet's mass is 3.98×1030 kg, you would answer "2.00").arrow_forward
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