Analogue gravity and ultrashort laser pulse filamentation D. Faccio, S. Cacciatori, V. Gorini, V. G. Sala, A. Averchi, A. Lotti, M. Kolesik and J. V. Moloney EPL, 89 3 (2010) 34004 Published online: 19 February 2010 DOI: 10.1209/0295-5075/89/34004