Star formation in the outer Galaxy: coronal properties of NGC 1893 M. Caramazza, G. Micela, L. Prisinzano, S. Sciortino, F. Damiani, F. Favata, J. R. Stauffer, A. Vallenari and S. J. Wolk A&A, 539 (2012) A74 Published online: 24 February 2012 DOI: 10.1051/0004-6361/201117256