Recycled Pulsars: Spins, Masses and Ages
  Recycled pulsars are mainly characterized by their spin periods, B-fields and masses. All these quantities are affected by previous interactions with a companion star in a binary system. Therefore, we can use these quantities as fossil records and learn about binary evolution. Here, I briefly review the distribution of these observed quantities and summarize our current understanding of the pulsar recycling process. 
Thomas M. Tauris
astro-ph.SR astro-ph.HE