Cosmic Perspective Fundamentals
3rd Edition
ISBN: 9780134988504
Author: Bennett, Jeffrey O., Donahue, M. (megan), SCHNEIDER, Nicholas, Voit, Mark
Publisher: Pearson,
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Chapter 9, Problem 3QQ
To determine
The star which has the hottest core.
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You’ve just discovered another new X-ray binary, which we will call Hyp-X2 (“Hyp” for hypothetical). The system Hyp-X2 contains a bright, G2 main-sequence star orbiting an unseen companion. The separation of the stars is estimated to be 12 million kilometers, and the orbital period of the visible star is 5 days.
Use Newton’s version of Kepler’s third law to calculate the sum of the masses of the two stars in the system.
a)Express your answer in kilograms to two significant figures.
b) Give your answer from the previous part in solar masses. ( Msun= 2.0 x 10 /30 kg). Express your answer as a multiple of sun’s mass to two significant figures.
C) Determine the mass of the unseen companion. ( Hint: A G2 main-sequence star has a mass of 1 Msun.) Express your answer as a multiple of sun’s mass to two significant figures.
The previous answer was not correct, please help me
State the definition for a parsec, and derive its value in terms of As- tronomical Units. Convert your answer for the value of the distance of a parsec in Astronomical Units into light years. Be sure to include a large and clearly labeled diagram showing how you arrived at your conclusions. Be sure to show all work!
Match each characteristic below to the appropriate stellar end state.
(Select W-White dwarf, N-Neutron star, B-Black hole. If the first is W and the rest N, enter
WNNNNNNN).
A) Has a mass no greater than 1.4 solar-masses.
B) Sometimes appears as a pulsar.
C) Size defined by its Schwarzschild radius.
D) In a binary system it can explode as a supernova.
E) Supported by electron degeneracy pressure.
F) Typically about the size of Earth.
G) Usually has a very strong magnetic field.
H) Viewed from afar, time stops at its event horizon.
Answer:
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Chapter 9 Solutions
Cosmic Perspective Fundamentals
Ch. 9 - Choose the best answer to each of the following....Ch. 9 - Prob. 2QQCh. 9 - Prob. 3QQCh. 9 - Prob. 4QQCh. 9 - Choose the best answer to each of the following....Ch. 9 - Choose the best answer to each of the following....Ch. 9 - Choose the best answer to each of the following....Ch. 9 - Choose the best answer to each of the following....Ch. 9 - Choose the best answer to each of the following....Ch. 9 - Choose the best answer to each of the following....
Ch. 9 - Choose the best answer to each of the following....Ch. 9 - Choose the best answer to each of the following....Ch. 9 - Explain all answers clearly, with complete...Ch. 9 - Explain all answers clearly, with complete...Ch. 9 - Explain all answers clearly, with complete...Ch. 9 - Prob. 16SEQCh. 9 - Explain all answers clearly, with complete...Ch. 9 - Explain all answers clearly, with complete...
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