An Ultra-magnetized X-ray Pulsar in the Supernova Remnant Kes 73

We request a 40ks XMM pulsephase spectroscopic observation of theremarkable, possibly ultramagnetized Xray pulsar, 1E 1841045. Thepulsar is associated with the young (virgul2,000 yrold) SNR Kes 73. Itsslow, 12s rotation is unprecedented for its youth, raising theintriguing possibility that the pulsar possesses an enormous surfacemagnetic field of nearly B virgul1015 G, a 1000X stronger than for atypical radio pulsar. The proposed observation will yield an unprecedentedspectral measurement providing a phased stellar spectrum explore the nature ofthe emissions. These observations will help advance our understanding of youngneutrons stars, in particular the magnetar phenomena. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]