[Fe XIV] and [Fe XI] reveal the forward shock in SNR 1E 0102.2-7219 Frédéric P. A. Vogt, Ivo R. Seitenzahl, Michael A. Dopita and Parviz Ghavamian A&A, 602 (2017) L4 Published online: 02 June 2017 DOI: 10.1051/0004-6361/201730756