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Systematic study of magnetar outbursts

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arxiv 1710.04671 v3 pith:YU5LR2AR submitted 2017-10-12 astro-ph.HE

Francesco Coti Zelati , Nanda Rea , Jose Pons , Sergio Campana , Paolo Esposito This is my paper · ORCID
classification astro-ph.HE
keywords magnetaroutburstoutburstsdatacharacteristicdecayluminosityparameters
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We present the results of the systematic study of all magnetar outbursts observed to date, through a reanalysis of data acquired in about 1100 X-ray observations. We track the temporal evolution of the outbursts soft X-ray spectral properties and the luminosities of the single spectral components as well as of the total emission. We model empirically all outburst light curves, and estimate the characteristic decay time-scales as well as the energetics involved. We investigate the link between different parameters (e.g. the luminosity at the peak of the outburst and in quiescence, the maximum luminosity increase, the decay time-scale and energy of the outburst, the neutron star surface dipolar magnetic field and characteristic age, etc.), and unveil several correlations among these quantities. We discuss our results in the context of the internal crustal heating and twisted bundle models for magnetar outbursts. This study is complemented by the Magnetar Outburst Online Catalogue (http://magnetars.ice.csic.es), an interactive data base where the user can plot any combination of the parameters derived in this work, and download all data.

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Cited by 3 Pith papers

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  1. Detection of X-ray Emission from a Bright Long-Period Radio Transient

    astro-ph.HE 2024-11 conditional novelty 8.0 of 10

    A bright long-period radio transient shows periodic X-ray emission at the same 44.2-minute period, making it the first LPT detected in X-rays and establishing a new class of hour-scale periodic X-ray transients.

  2. Search for transient gamma-ray emission from magnetar flares using Fermi-LAT

    astro-ph.HE 2024-12 conditional novelty 4.0 of 10

    A Fermi-LAT search around 15 magnetar flares yields mostly null results, with one 4.4-sigma candidate from 1E 1048.1-5937 that may be galactic diffuse contamination.

  3. Physics of Strong Magnetism with eXTP

    astro-ph.HE 2025-06 unverdicted novelty 3.0 of 10

    The eXTP mission's planned instruments would enable more sensitive X-ray polarization and timing observations of magnetars and accreting pulsars, potentially testing vacuum birefringence and probing magnetic field structures.

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