High resolution spatial and timing observations of millisecond pulsar   PSR J0218+4232 with Chandra
  We report on high-resolution spatial and timing results for binary millisecond pulsar PSR J0218+4232 obtained with the Chandra HRC-I and HRC-S in imaging mode. We found no indications for extended emission at 1 arcsec scales. With the HRC-S observation we obtained a 0.08-10 keV pulse profile with high statistics which could be compared in absolute time with the pulse profiles at radio-frequencies and at high-energy gamma-rays. The two X-ray pulses at aligned with 2 of the 3 radio-pulses, and with the 2 gamma-ray pulses. 
L. Kuiper, W. Hermsen, F. Verbunt, S. Ord, I. Stairs and A. Lyne