okt 082012
 
How pulsars slow down with age

  Researchers at the University of Southampton have developed a model which explains how the spin of a pulsar slows down as the star gets older. The famous Crab Nebula (M1, NGC 1952 or Taurus A) is the remnant of SN 1054, a pulsar wind nebula with a diameter of 11 light-years, located in the Perseus Arm [continue reading]