Why Do Astronomers Believe a Magnetar Can Have a Much

question 204

Multiple Choice

Why do astronomers believe a magnetar can have a much stronger magnetic field than that of an ordinary neutron star?

• A) Magnetars were formed from supergiant stars many times larger than the stars that produced ordinary neutron stars.
• B) When first formed as neutron stars, magnetars were spinning rapidly enough that the magnetic fields produced by convection amplified the magnetic field of the original star.
• C) Magnetars are superconducting throughout.
• D) Magnetars have a higher proportion of protons and thus have stronger electric currents.

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