Is PSR J1320-5359 heated by magnetic field decayquestionMark

Pulsar J13205359 was recently discovered to have one of the highest evermeasured longterm braking indices (n> 100). This is far in excess over thecanonical value of 3 that one would expect if pulsars slow down their rotationas rotating magnetic dipoles. Although some variation of n (on the order of afew) around 3 has been seen before, such extremely large braking indices are anovel finding, and their physical origin is unclear. A promising hypothesissuggests magnetic field decay as explanation. This can be observationallychecked since magnetic field decay should also manifest itself in an unusuallyhigh thermal Xray luminosity. Based on several properties, PSR J13205359 isthe best target to test whether the magnetic field decay hypothesis can explain the high braking indices. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]