21st Century Astronomy
21st Century Astronomy
6th Edition
ISBN: 9780393428063
Author: Kay
Publisher: NORTON
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Chapter 17, Problem 7QP
To determine

The correct option in which the H-R diagram of the globular cluster would fall if the Sun were part of it.

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The mass-luminosity relation describes the mathematical relationship between luminosity and mass for main sequence stars.  It describes how a star with a luminosity of 280 L⊙ would have a mass of ______ M⊙.
3) indicate which locations in the H-R diagram correspond to places where the evolution is slow. Answers should be in the order they occur in the star. For example, if, in order, E, I and A are locations where there is a long time between changes, then enter EIA. (HINT: There are exactly three of them Hint: Hint: Our sun will be stable for another 4 billion years and white dwarfs last a long time because they are small. Really good additional hint: There are 3 places where the evolution is slow. Info below is what each of the labels are.  1) red giant, helium flash A2) white dwarf F3) red giant with helium burning shell B4) hydrogen fusion in shell around core I5) helium fusion in core D6) envelope ejected, planetary nebula H7) main-sequence star C8) helium used up, core collapses G9) hydrogen used up, core collapses E
Using a Hertzsprung–Russell diagram to illustrate your answer, describe in detail the followingmain stages of a solar mass star’s evolutionary track. You should briefly describe the importantphysical process/processes at each stage, and one or two observational facts.• protostar• main-sequence• post-main-sequence
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