Generation of radiative knots in a randomly pulsed protostellar jet - II. X-ray emission R. Bonito, S. Orlando, M. Miceli, J. Eislöffel, G. Peres and F. Favata A&A, 517 (2010) A68 Published online: 10 August 2010 DOI: 10.1051/0004-6361/201014723