A non-pulsating neutron star in the supernova remnant HESS J1731−347/G353.6−0.7 with a carbon atmosphereD. Klochkov, G. Pühlhofer, V. Suleimanov, S. Simon, K. Werner and A. SantangeloA&A, 556 (2013) A41DOI: https://doi.org/10.1051/0004-6361/201321740