PCS 181 Chapter Notes - Chapter 9: Supernova Remnant, Sn 1987A, Light Curve
7 May 2015
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Document Summary
When a middle weight star collapses and goes supernova. These are balls of neutrons, with some neutrons. Pulsar = neutron star = the collapsed core remnant of a middleweight star (8 20m ) that explodes as a supernova. Only 5% of stars do this; most stars die leaving behind white dwarfs the size of earth. This tight ball of closely-packed neutrons is only ~20 100 km across has the ~ the same. A neutron stars has other characteristics that are also similar to an atomic nuclei. Center of the earth is a mushy metallic core creating a magnetic eld. Charged particles interact with the magnetic eld. The magnetic line indicates the direction in which the charged particles travel either north. Charged particles from the sun hit the north and south pole. These particles hit our atmosphere particles get excited particles then get unexcited or south pole energy that is released then causes the aurora borealis.
