  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.
