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 17, Problem 69Q
To determine
(a)
The sum of two stars in a binary Steller system.
To determine
(b)
The mass of each individual star.
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A 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").
Solve the following problem:
Two stars, named A and B, each with a mass equal to the Sun's mass are in orbit around each other. If the distance between the two stars is 1.0 AU. What is the period of their orbit?
Describe each step in solving the problem:
Problem 4. The mass of the sun is denoted by Mo
1. The star UY Scuti has a mass of 10M. Express the mass of this star in kg.
2 AU
Figure 2.1: Parsec into Km. In the figure B and C are two diametrically opposite positions of the Earth while
it revolves around the sun. The star is located at point A and S is the Sun.
Chapter 17 Solutions
Universe: Stars And Galaxies
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