X-ray spectra from magnetar candidates - III. Fitting SGR/AXP soft X-ray emission with non-relativistic Monte Carlo models

2009/06/05 by Silvia Zane, S. Zane, N. Rea +2 · 1 citation
Earth and Planetary Sciences · Physics and Astronomy · #Astronomy #Astrophysical Phenomena and Observations #Astrophysics #Bremsstrahlung #High-pressure geophysics and materials #Magnetar #Magnetosphere #Monte Carlo method #Nuclear physics #Optics #Photon #Physics #Plasma #Pulsar #Pulsars and Gravitational Waves Research #Soft photon #Spectral line #X-ray #X-ray pulsar #astro-ph.GA #astro-ph.HE

paper · pdf · doi:10.1111/j.1365-2966.2009.15190.x

13 Pages, 7 Figures, 4 Tables, accepted for publication in MNRAS

arxiv created 2009/06/05 · openalex publication_date 2009/08/19 · arxiv updated 2015/05/13 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

Within the magnetar scenario, the ‘twisted magnetosphere’ model appears very promising in explaining the persistent X-ray emission from soft gamma repeaters (SGRs) and anomalous X-ray pulsars (AXPs). In the first two papers of the series, we have presented a 3D Monte Carlo code for solving radiation transport as soft, thermal photons emitted by the star surface are resonantly upscattered by the magnetospheric particles. A spectral model archive has been generated and implemented in xspec. Here, we report on the systematic application of our spectral model to different XMM–Newton and INTEGRAL observations of SGRs and AXPs. We find that the synthetic spectra provide a very good fit to the data for the nearly all the source (and source states) we have analysed.

Citations

• Spectral Modeling of the High-Energy Emission of the Magnetar 4U 0142+614
• X-ray spectra from magnetar candidates - II. Resonant cross-sections for electron-photon scattering in the relativistic regime
• SwiftandChandraconfirm the intensity-hardness correlation of the AXP 1RXS J170849.0–400910
• Our distorted view of magnetars: application of the resonant cyclotron scattering model
• A giant γ-ray flare from the magnetar SGR 1806–20
• XMM-Newton Observations of CXOU J010043.1-721134: The First Deep Look at the Soft X-Ray Emission of a Magnetar
• Constraints on the Emission and Viewing Geometry of the Transient Anomalous X‐Ray Pulsar XTE J1810−197
• Resonant Cyclotron Scattering in Three Dimensions and the Quiescent Nonthermal X‐ray Emission of Magnetars
• Extinction Columns and Intrinsic X‐Ray Spectra of the Anomalous X‐Ray Pulsars
• Solar System Abundances and Condensation Temperatures of the Elements
• Resonant Cyclotron Scattering in Magnetars’ Emission
• Resonant Compton upscattering in anomalous X-ray pulsars

Cited by

• Magnetars: Properties, Origin and Evolution