Identification of CXOU J171405.7−381031 as a New Magnetar with XMM-Newton

Takuro Sato, Aya Bamba, Ryoko Nakamura, Manabu Ishida
2010 Nippon Tenmon Gakkai obun kenkyu hokoku  
We have observed the 3.8 s pulsar CXOU J171405.7-381031 with XMM-Newton, and discovered the significant dP/dt of 6.40+/-0.14X10^-11 s/s from this source for the first time, with the aid of archival Chandra data. The characteristic age (950 yr), the magnetic field strength (5X10^14 G), and the spin-down luminosity (4.5X10^34 erg/s) derived from P and dP/dt lead us to conclude that CXOU J171405.7-381031 should be identified as a new magnetar. The obtained characteristic age indicates that CXOU
more » ... 1405.7-381031 is youngest among all known anomalous X-ray pulsars, which is consistent with the age estimation from the thermal X-rays of the associated supernova remnant. The ratio between 2-10 keV luminosity and spin-down luminosity is almost unity, which implies that CXOU J171405.7-381031 is the key source to connect magnetars and traditional radio pulsars.
doi:10.1093/pasj/62.5.l33 fatcat:4ph6oityzfgzhefe4nj5pq3duy