Astronomy
1st Edition
ISBN: 9781938168284
Author: Andrew Fraknoi; David Morrison; Sidney C. Wolff
Publisher: OpenStax
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Textbook Question
Chapter 21, Problem 16E
Why are young Jupiters easier to see with direct imaging than old Jupiters?
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Chapter 21 Solutions
Astronomy
Ch. 21 - Give several reasons the Orion molecular cloud is...Ch. 21 - Why is star formation more likely to occur in cold...Ch. 21 - Why have we learned a lot about star formation...Ch. 21 - Describe what happens when a star forms. Begin...Ch. 21 - Describe how the T Tauri star stage in the life of...Ch. 21 - Look at the four stages shown in Figure 21.8. In...Ch. 21 - The evolutionary track for a star of 1 solar mass...Ch. 21 - Two protostars, one 10 times the mass of the Sun...Ch. 21 - Compare the scale (size) of a typical dusty disk...Ch. 21 - Why is it so hard to see planets around other...
Ch. 21 - Why did it take astronomers until 1995 to discover...Ch. 21 - Which types of planets are most easily detected by...Ch. 21 - List three ways in which the exoplanets we have...Ch. 21 - List any similarities between discovered...Ch. 21 - What revisions to the theory of planet formation...Ch. 21 - Why are young Jupiters easier to see with direct...Ch. 21 - A friend of yours who did not do well in her...Ch. 21 - Observations suggest that it takes more than 3...Ch. 21 - Suppose you wanted to observe a planet around...Ch. 21 - Why were giant planets close to their stars the...Ch. 21 - Exoplanets in eccentric orbits experience large...Ch. 21 - When astronomers found the first giant planets...Ch. 21 - An exoplanetary system has two known planets....Ch. 21 - Kepler’s third law says that the orbital period...Ch. 21 - Calculate the transit depth for an M dwarf star...Ch. 21 - If a transit depth of 0.00001 can be detected with...Ch. 21 - What fraction of gas giant planets seems to have...
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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
- Why is the existence of hot Jupiters puzzling? What is the current hypothesis for how they formed?arrow_forwardWhich of the gas giants has the largest icy/rocky core compared to its overall size?arrow_forwardWhat produced the helium now present in the Suns atmosphere? In Jupiters atmosphere? In the Suns core?arrow_forward
- If a transit depth of 0.00001 can be detected with the Kepler spacecraft, what is the smallest planet that could be detected around a 0.3 RsunM dwarf star?arrow_forwardWhy do you suppose the rings of Saturn are made of bright particles, whereas the particles in the rings of Uranus and Neptune are black?arrow_forwardWhat fraction of gas giant planets seems to have inflated radii?arrow_forward
- Consider the attached light curve for a transiting planet observed by the Kepler mission. If the host star is identical to the sun, what is the radius of this planet? Give your answer in terms of the radius of Jupiter. Brightness of Star Residual Flux 0.99 0.98 0.97 0.006 0.002 0.000 -8-881 -0.06 -0.04 -0.02 0.00 Time (days) → 0.02 0.04 0.06arrow_forwardWhat produced the helium now present in the Sun’s atmosphere? In Jupiter’s atmosphere? In the Sun’s core?arrow_forwardCompare the atmospheric circulation (weather) of the four giant planets.arrow_forward
- The speed of the solar wind is approximately 400 km/s. How many days does the solar wind take to travel from the Sun to Jupiter? (Notes: 1 AU = 1.5 ✕ 108 km; 1 day = 86,400 s.)arrow_forwardThe speed of the solar wind is approximately 400 km/s. How many days does the solar wind take to travel from the Sun to Jupiter? (Notes: 1 AU = 1.5 ✕ 108 km;1 day = 86,400 s.)arrow_forwardTaking Neptune to be at a distance of 30.6 AU from the Sun, how longdoes it take for a photon to travel from the Sun to Neptune? Give youranswer in units of minutesarrow_forward
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