SIMBAD references

2015MNRAS.454.3366Z - Mon. Not. R. Astron. Soc., 454, 3366-3375 (2015/December-3)

Broad-band X-ray spectra of anomalous X-ray pulsars and soft γ-ray repeaters: pulsars in a weak-accretion regime?


Abstract (from CDS):

We present the results from the analysis of the broad-band X-ray spectra of five anomalous X-ray pulsars (AXPs) and soft γ-ray repeaters (SGRs). We fit their Suzaku and INTEGRAL spectra with models appropriate for the X-ray emission from the accretion flow on to a pulsar. We find that their X-ray spectra can be well described with this model. In particular, we find that (a) the radius of the accretion column is ∼ 150-350 m resulting in a transverse optical depth of ∼ 1, (b) the vertical Thompson optical depth is ~50-400, and (c) their luminosity translates in accretion rates ~ 1015g/s. These results are in good agreement with the predictions from the fall-back disc model, providing further support in the interpretation of AXPs and SGRs as accreting pulsars.

Abstract Copyright: © 2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2015)

Journal keyword(s): accretion, accretion discs - pulsars: individual: 4U 0142+61 - pulsars: individual: 1E 1547-5408 - pulsars: individual: 4U 0142+61 - pulsars: individual: 1RXS J1708-4009 - pulsars: individual: SGR 1900+14

Simbad objects: 9

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