INTEGRAL observation of V 0332+53 in outburst

We present the analysis of a 100 ks INTEGRAL ( 3- 100 keV) observation of the transient X- ray pulsar V0332+ 53 in outburst. The source is pulsating at P-Pulse = 4.3751 +/- 0.0002 s with a clear double pulse from 6 keV to 60 keV. The average flux was similar to 550 mCrab between 20 keV and 60 keV. We modeled the broad band continuum from 5 keV to 100 keV with a power- law modified by an exponential cut off. We observe three cyclotron lines: the fundamental line at 24.9(+0.1) (-0.1) keV, the first harmonic at 50.5(+0.1) (-0.1) keV as well as the second harmonic at 71.7(-0.8)(+0.7) keV, thus confirming the discovery of the harmonic lines by Coburn et al. ( 2005) in RXTE data.