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The Ps-Porb Relation for Wind-fed X-Ray Pulsars

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					The Ps-Porb Relation for Wind-fed
        X-Ray Pulsars
     Hai-Lang Dai, Xiang-dong Li
           and Xi-Wei Liu
Our Model

  Spin evolution
    Case   a: the pulsar phase




    or
                Davies & Pringle 1981, MNRAS, 151,351
Our Model
 Spin evolution
    Case   b: the propeller phase
Our Model
  Evolution of the inclination angle



          c is the critical value of the meridional angle
             measured from the north magnetic pole


                       Wang & Robnik 1982, A&A, 151,222
Our Model
  Evolution of the mass capture rate


            Nieuwenhuijzen & de Jager 1990, A&A, 231, 134




            Bondi & Hoyle 1944, MNRAS, 104, 273
Results
Results
Results
Observations
Results

				
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posted:4/28/2013
language:English
pages:10