The magnetic fields of anomalous X-ray pulsars

Feryal Ozel, Tolga Güver, Ersin Göǧüş

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

Anomalous X-ray Pulsars (AXPs) belong to a class of neutron stars believed to harbor the strongest magnetic fields in the universe, as indicated by their energetic bursts and their rapid spindowns. We have developed a theoretical model that takes into account processes in the atmospheres and magnetospheres of ultramagnetic neutron stars, as well as the effects of their strong gravitational fields on the observable properties. Using this model, we have analyzed the X-ray spectra of a number of AXPs. We find that in all cases, the X-ray spectra are described very well with this emission model. The spectroscopically measured magnetic field strengths of these sources are in close agreement with the values inferred from their spindown properties and provide independent evidence for their magnetar nature. The analysis of spectral data using this physical model also sheds light on the long-term evolution of AXPs.

Original languageEnglish (US)
Title of host publicationAIP Conference Proceedings
Pages254-258
Number of pages5
Volume983
DOIs
StatePublished - 2008
Event40 Years Of Pulsars: Millisecond Pulsars, Magnetars and More - Montreal, QC, Canada
Duration: Aug 12 2007Aug 17 2007

Other

Other40 Years Of Pulsars: Millisecond Pulsars, Magnetars and More
CountryCanada
CityMontreal, QC
Period8/12/078/17/07

Fingerprint

pulsars
magnetic fields
x rays
neutron stars
magnetars
harbors
magnetospheres
gravitational fields
bursts
field strength
universe
atmospheres

Keywords

  • Magnetars
  • Pulsars

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Ozel, F., Güver, T., & Göǧüş, E. (2008). The magnetic fields of anomalous X-ray pulsars. In AIP Conference Proceedings (Vol. 983, pp. 254-258) https://doi.org/10.1063/1.2900155

The magnetic fields of anomalous X-ray pulsars. / Ozel, Feryal; Güver, Tolga; Göǧüş, Ersin.

AIP Conference Proceedings. Vol. 983 2008. p. 254-258.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ozel, F, Güver, T & Göǧüş, E 2008, The magnetic fields of anomalous X-ray pulsars. in AIP Conference Proceedings. vol. 983, pp. 254-258, 40 Years Of Pulsars: Millisecond Pulsars, Magnetars and More, Montreal, QC, Canada, 8/12/07. https://doi.org/10.1063/1.2900155
Ozel F, Güver T, Göǧüş E. The magnetic fields of anomalous X-ray pulsars. In AIP Conference Proceedings. Vol. 983. 2008. p. 254-258 https://doi.org/10.1063/1.2900155
Ozel, Feryal ; Güver, Tolga ; Göǧüş, Ersin. / The magnetic fields of anomalous X-ray pulsars. AIP Conference Proceedings. Vol. 983 2008. pp. 254-258
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