Our distorted view of magnetars: application of the Resonant Cyclotron Scattering model

Details Our distorted view of magnetars: application of the Resonant Cyclotron Scattering model Our distorted view of magnetars: application of the Resonant Cyclotron Scattering model

2006-08-30

arxiv.org/abs/astro-ph/0608650v1

Astrophys.SpaceSci.308:61-65,2007

Astronomy and Astrophysics

Astrophysics

5 pages, 5 color figures; Astrophysics & Space Science, in press ("Isolated Neutron Stars"; London, UK)

Scientific paper

10.1007/s10509-007-9306-1

The X-ray spectra of the magnetar candidates are customarily fitted with an empirical, two component model: an absorbed blackbody and a power-law. However, the physical interpretation of these two spectral components is rarely discussed. It has been recently proposed that the presence of a hot plasma in the magnetosphere of highly magnetized neutron stars might distort, through efficient resonant cyclotron scattering, the thermal emission from the neutron star surface, resulting in the production of non-thermal spectra. Here we discuss the Resonant Cyclotron Scattering (RCS) model, and present its XSPEC implementation, as well as preliminary results of its application to Anomalous X-ray Pulsars and Soft Gamma-ray Repeaters.

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