THE NET­WORK OF MAG­NE­TARS

iD magazine - - Space -

»A neu­tron star is cre­ated when a star col­lapses in a supernova. This com­presses a huge sun into a mas­sive sphere with a di­am­e­ter of about 12 miles. Due to the prin­ci­ples of elec­tro­dy­nam­ics, the mag­netic field of the orig­i­nal sun does not shrink; in­stead, the orig­i­nal an­gu­lar mo­men­tum is pre­served so it re­mains the same— its cross sec­tion is just a mil­lion times smaller. The re­sul­tant field strength is sev­eral quadrillion times stronger than the mag­netic field of our Sun.

OCEAN OF STONE In its in­te­rior a mag­ne­tar’s den­sity is around 330 mil­lion tons per square cen­time­ter— three times greater than that of an atomic nu­cleus. On the other hand, the outer layer prob­a­bly con­sists of an ocean of liq­uid mat­ter.

mag­netic field 360° ra­dius

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