EBK LIFE IN THE UNIVERSE
EBK LIFE IN THE UNIVERSE
4th Edition
ISBN: 8220101460417
Author: SHOSTAK
Publisher: YUZU
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Chapter 11, Problem 50IF
To determine

Whether the super giants are older than the main sequence stars and also explain it with reason.

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As a cluster of stars begins to age, which type of star in the cluster will move off the main sequence of the H-R diagram first?   1) all the stars in a cluster are born at the same time; so they will all move off the main sequence at the same time, as they evolve   2) G type stars, like our Sun   3) M type stars, which are the coolest   4) the lowest mass stars, which have the least amount of fuel for fusion   5) the O and B type stars
In the H-R diagram we see that stellar masses__________ downward along the main sequence. At the upper end of the main sequence, the hot, luminous O stars can have masses as high as _________ or more times that of the Sun. On the lower end, cool, dim M stars may have as little as __________ times the mass of the Sun. Many more stars fall on the lower end of the main sequence than on the upper end, which tells us that _________stars are much more common than __________ stars.
A planet orbits 1 AU from a star that is 3.5 times as massive as our Sun. How does the star's luminosity compare?   Use the mass-luminosity relation to calculate the luminosity. If the star has the same radius as our Sun, what is the temperature of the star compared to the Sun?   If Earth's average temperature is 287 K and the Sun were replaced with this star, how would its average temperature change? (Enter a temperature in K. Assume that Earth temperature is proportional to solar flux.)

Chapter 11 Solutions

EBK LIFE IN THE UNIVERSE

Ch. 11 - How do the orbits of known extrasolar planets...Ch. 11 - Summarize the key features shown in Figure 11.20,...Ch. 11 - According to current statistics, how common arc...Ch. 11 - What types of worlds seem most likely to support...Ch. 11 - How might a stars habitable zone be wider than we...Ch. 11 - How might future imagery and spectroscopy allow us...Ch. 11 - Prob. 17RQCh. 11 - Prob. 18RQCh. 11 - What is the HertzsprungRussell diagram? How does a...Ch. 11 - Prob. 20RQCh. 11 - Date: February 16, 2025. Headline: Astronomers...Ch. 11 - Prob. 22TYUCh. 11 - Date: June 19, 2028. Headline: Spectrum Reveals...Ch. 11 - Date: November 7, 2020. Headline: New Images Show...Ch. 11 - Date: November 7, 2050. Headline: New Images Show...Ch. 11 - Date: July 20, 2020. Headline: Giant Planet Found...Ch. 11 - Date: September 15, 2045. Headline: Sun-Like Star...Ch. 11 - Prob. 28TYUCh. 11 - Date: December 13, 2033. Headline: Orphan Planet...Ch. 11 - Prob. 30TYUCh. 11 - Prob. 31TYUCh. 11 - Prob. 32TYUCh. 11 - Which method could detect a planet in an orbit...Ch. 11 - To determine a planets average density, we can use...Ch. 11 - Based on the model types shown in Figure 11.20, a...Ch. 11 - According to current statistics, about what...Ch. 11 - The term super-Earth means a planet that is (a)...Ch. 11 - Our best hope for determining that life exists on...Ch. 11 - Jupiter has had an important effect on life on...Ch. 11 - Prob. 40TYUCh. 11 - Prob. 41POSCh. 11 - Unanswered Questions. As discussed in this...Ch. 11 - Explaining the Doppler Method. Explain how the...Ch. 11 - Explaining the Transit Method. Explain how the...Ch. 11 - Comparing Methods. What are the strengths and...Ch. 11 - Super-Earth. Youve discovered a super-Earth...Ch. 11 - Stars with Habitable Planets. Based on what youve...Ch. 11 - Are Earth-Like Planets Common? Based on what you...Ch. 11 - Prob. 50IFCh. 11 - Science Fiction Planet. Choose one fictional...Ch. 11 - Number of Stars with Habitable Planets. Assume...Ch. 11 - Prob. 54IFCh. 11 - Finding Orbit Sizes. The Doppler method allows us...Ch. 11 - Finding a Planetary Mass. Using the Doppler...Ch. 11 - Transit of TrES-1. The planet TrES-1, orbiting a...Ch. 11 - The Doppler Formula. The amount of Doppler shift...Ch. 11 - Prob. 59IFCh. 11 - Future Mission. Imagine that a wealthy benefactor...Ch. 11 - Is It Worth It? Thanks to rapidly advancing...Ch. 11 - Prob. 62IFCh. 11 - Extrasolar Planet Mission. Learn about a proposed...
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