Universe: Stars And Galaxies
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 17, Problem 55Q
To determine

(a)

The region occupied by main sequence star on H-R diagram.

To determine

(b)

The region occupied by red giants on H-R diagram.

To determine

(c)

The region occupied by super giants on H-R diagram.

To determine

(d)

The region occupied by white dwarfs on H-R diagram.

To determine

(e)

The region occupied by the Sun on H-R diagram.

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Let’s say you’re looking for extrasolar planets. You observe a star that has a spectral shift in the line that is supposed to be at at 656.28011 nm – this star shows this line at 656.28005 nm. What is the radial velocity of star (in m/s) and in what direction in relation to you? a) 27.4 m/s, towards b) 27.4 km/s, away c) -27.4 m/s, toward d) -27.4 km/s, away
Draw an H-R diagram and dot the following question options on the diagram (using the letters given for the question options).   A) The coldest and smallest radius star B) The hottest and largest radius star C) The Sun D) A star in the helium flash phase E) A main sequence star with a temperature of 10000K
Use the H-R Diagram below to help answer the following questions. Luminosity (solar units) 10,000+ 1,000+ 100+ 10- .01+ .001+ .0001 B White Dwarfs 20,000 B Spectral Type A Main Sequence D 10,000 Temperature (K) FGK Red Giants 5,000 M -5 10 15 Absolute Magnitude

Chapter 17 Solutions

Universe: Stars And Galaxies

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