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SlideshowReport

Crab Nebula Pulsar

Description
Stellar Remnants  

White dwarf
Small (some no larger than Earth)
Dense
Can be more massive than the Sun
Spoonful weighs several tons
Atoms take up less space
Electrons displaced inward
Called degenerate matter
Hot surface
Cools to become a black dwarf

Neutron star
Forms from a more massive star
Star has more gravity
Squeezes itself smaller
Remnant of a supernova
Gravitational force collapses atoms
Electrons combine with protons to produce neutrons
Small size
Pea size sample
Weighs 100 million tons
Same density as an atomic nucleus
Strong magnetic field
First one discovered in early 1970s
Pulsar (pulsating radio source)
Found in the Crab Nebula (remnant of an A.D. 1054 supernova)
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