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TIZIANA DI SALVO

A Spectral Insight into the Physics of Accreting ms Pulsars

  • Autori: Papitto, A; Riggio, A; Burderi, L; Di Salvo, T; D'Ai, A; Iaria, R; Menna, MT; Bozzo, E
  • Anno di pubblicazione: 2010
  • Tipologia: Capitolo o Saggio (Capitolo o saggio)
  • OA Link: http://hdl.handle.net/10447/77440

Abstract

The broadened iron lines observed from accreting compact objects are most easily interpreted in terms of reflection onto the accretion disc of the hard X-ray photons emitted by the central source. In this context, such a broadness is due to the relativistic motion of the reflecting plasma, in the deep gravitational well of the compact object, and can thus serve as a probe of the inner radius of the disc. Here we report about the discovery of such features from a couple of accreting millisecond pulsars, and discuss the constraints which can be derived on the magnetospheric radius.