Extended X-ray emission around RRAT J1819-1458
  We present new imaging and spectral analysis of the recently discovered extended X-ray emission around the high-magnetic-field rotating radio transient RRAT J1819-1458. We used two Chandra observations, taken on 2008 May 31 and 2011 May 28. The diffuse X-ray emission was detected with a significance of ~19sigma in the image obtained by combining the two observations. Long-term spectral variability has not been observed. Possible scenarios for the origin of this diffuse X-ray emission, further detailed in Camero-Arranz et al. (2012), are here discussed. 
A. Camero-Arranz, N. Rea, M. A. McLaughlin, N. Bucciantini, P. Slane,   B. Gaensler, D. Torres, L. Stella, E. de On\~na, G. ...
astro-ph.HE