Consider the following statements regarding 39 Magnetar 39 1 Magnetars are neutron stars formed from...........

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Consider the following statements regarding 'Magnetar'

1. Magnetars are neutron stars, formed from supernovae

2. Magnetars are smaller than Sun

Which of the giveen above statement (s) is/ are correct?

Only 1

Only 2

Both 1 and 2

Neither 1 nor 2

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Explanation:

First option is correct.

Like other neutron stars, magnetars are around 20 kilometres (12 mi) in diameter and have a mass 2–3 times that of the Sun. The density of the interior of a magnetar is such that a thimble full of its substance would have a mass of over 100 million tons.

Magnetars are differentiated from other neutron stars by having even stronger magnetic fields, and rotating comparatively slowly, with most magnetars completing a rotation once every one to ten seconds,compared to less than one second for a typical neutron star. This magnetic field gives rise to very strong and characteristic bursts of X-rays and gamma rays. The active life of a magnetar is short.

Their strong magnetic fields decay after about 10,000 years, after which activity and strong X-ray emission cease.