Abstract
The late-time tail behaviour of massive scalar fields is studiedanalytically in a stationary axisymmetric Einstein–MaxwellDilaton–Axion (EMDA) black hole geometry. Itis shown that the asymptotic behaviour of massive perturbations isdominated by the oscillatory inverse power-law decaying tailt−(l+3/2)sin (μt) at the intermediate late times, and by theasymptotic tail t−5/6sin (μt) at asymptotically late times,with μ being field mass. Our result seems to suggest that theintermediate tails t−(l+3/2)sin (μt) and the asymptoticallytails t−5/6sin (μt) may be a quite general feature forevolution of massive scalar fields in any four-dimensionalasymptotically flat rotating black hole backgrounds.
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