We report the first INTEGRAL timing and spectral analysis of the high mass X-ray binary source 2S 0114+65 at high energies ( 5–100 keV ) .
The pulse period was found at 2.668 hr with a high pulsed fraction , \sim 80 % in both the 20–40 keV and 40–80 keV energy bands .
The spin-up trend over \sim 8 years was measured to be \dot { P } = -8.9 \times 10 ^ { -7 } s s ^ { -1 } .
The hard X-ray spectrum obtained with JEM-X/ISGRI is well described by a high energy exponential cut-off power law model where the estimated luminosity is 1.8 \times 10 ^ { 36 } erg s ^ { -1 } in the 5–100 keV energy band , for a source distance of 7.2 kpc .
We tentatively identify a cyclotron resonance scattering feature at \sim 22 keV with one harmonic , implying a magnetic field of \sim 2.5 \times 10 ^ { 12 } G .