2014ApJ...789...97K

We present results of the spectral analysis of the X-ray emission from the middle-aged Fermi pulsar J1741-2054 using all Chandra archival data collected in 2010 and 2013. We confirm early findings by Romani et al. in 2010 that the pulsar spectrum contains a thermal emission component. The component is best described by the blackbody model with temperature ~60 eV and emitting area radius ~17 D_kpckm. The thermal emission likely originates from the entire surface of the cooling neutron star if the distance to the pulsar is ~0.8 kpc. The latter is supported by a large absorbing column density inferred from the X-ray fit and empirical optical extinction-distance relations along the pulsar line of sight. The neutron star surface temperature and characteristic age make it similar to the well studied middle-aged pulsar B1055-52. Like this pulsar, PSR J1741-2054 is hotter than predicted by the standard cooling scenario.