A35 Chapter 21 - Chapter 21 Neutron Stars Display outrageous(sic behavior including bouts of explosive helium fusion that yield as vast outpouring of X

A35 Chapter 21 - Chapter 21 Neutron Stars Display...

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Chapter 21: Neutron Stars Display outrageous (sic) behavior, including bouts of explosive helium fusion that yield as vast outpouring of X rays A neutron star is even more highly compressed than a white dwarf; composed primarily of neutrons (obvi) Degenerate neutron pressure : similar to the electron degeneracy that supports white dwarfs, but even stronger to keep them from collapsing Pulsars : extremely regular radio emissions, very short intervals o The rapid flashing of radiation from a pulsar gave evidence that white dwarfs are not the only endpoint of stellar evolution o Rapidly rotating neutron stars with intense magnetic fields o They can spin so rapidly precisely because they are so small and dense (think of figure skater example from lecture pulling her arms in – spins faster) o One in Crab Nebula o Remnants of supernovas Pulsars gradually slow down as they radiate energy into space; the energy in a neutron
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  • Spring '09
  • RobertKirshner
  • Neutron Stars, Supernova, White dwarf, Neutron star

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