At the end of a massive star’s life, its core can undergo a catastrophic collapse that triggers a supernova explosion. The core remnant consists of about 1.4 solar masses’ worth of pure neutronsand is called a neutron star. What is the approximate radius of such a neutron star, if neutrons arereally like incompressible spheres?

Question
Asked Oct 22, 2019
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At the end of a massive star’s life, its core can undergo a catastrophic collapse that triggers a supernova explosion. The core remnant consists of about 1.4 solar masses’ worth of pure neutrons
and is called a neutron star. What is the approximate radius of such a neutron star, if neutrons are
really like incompressible spheres?

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Expert Answer

Step 1

Write the expression for number of neutrons in a neutron star

1.4M
2=
m
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1.4M 2= m

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Step 2

Write the expression for volume of neutron...

V =nV
1.4M
4
TR
13
3(1.4M
R =
4 tm
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Image Transcriptionclose

V =nV 1.4M 4 TR 13 3(1.4M R = 4 tm

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