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Conference Paper: The new magnetar Swift J1822.3-1606

TitleThe new magnetar Swift J1822.3-1606
Authors
Keywordspulsars: individual (Swift J1822.3-1606)
stars: neutron
X-rays: general
Issue Date2012
PublisherCambridge University Press.
Citation
International Astronomical Union Symposia S291, Beijing China, August 2012. In Neutron Stars and Pulsars: Challenges and Opportunities after 80 years-Proceedings of the International Astronomical Union Symposia, 2012, v. 8, p. 486-488 How to Cite?
AbstractOn 2011 July 14, a transient X-ray source, Swift J1822.3-1606, was detected by Swift BAT via its burst activities. It was subsequently identified as a new magnetar upon the detection of a pulse period of 8.4 s. Using follow-up RXTE, Swift, and Chandra observations, we have determined a spin-down rate of Ṗ 3 × 10-13, implying a dipole magnetic field of 5 × 1013 G, second lowest among known magnetars, although our timing solution is contaminated by timing noise. The post-outburst flux evolution is well modelled by surface cooling resulting from heat injection in the outer crust, although we cannot rule out other models. We measure an absorption column density similar to that of the open cluster M17 at 10' away, arguing for a comparable distance of 1.6 kpc. If confirmed, this could be the nearest known magnetar.
Persistent Identifierhttp://hdl.handle.net/10722/185544
ISBN

 

DC FieldValueLanguage
dc.contributor.authorScholz, P-
dc.contributor.authorNg, CY-
dc.contributor.authorLivingstone, MA-
dc.contributor.authorKaspi, VM-
dc.contributor.authorCumming, A-
dc.contributor.authorArchibald, R-
dc.date.accessioned2013-08-20T07:31:41Z-
dc.date.available2013-08-20T07:31:41Z-
dc.date.issued2012-
dc.identifier.citationInternational Astronomical Union Symposia S291, Beijing China, August 2012. In Neutron Stars and Pulsars: Challenges and Opportunities after 80 years-Proceedings of the International Astronomical Union Symposia, 2012, v. 8, p. 486-488-
dc.identifier.isbn978-1-107-03380-1-
dc.identifier.urihttp://hdl.handle.net/10722/185544-
dc.description.abstractOn 2011 July 14, a transient X-ray source, Swift J1822.3-1606, was detected by Swift BAT via its burst activities. It was subsequently identified as a new magnetar upon the detection of a pulse period of 8.4 s. Using follow-up RXTE, Swift, and Chandra observations, we have determined a spin-down rate of Ṗ 3 × 10-13, implying a dipole magnetic field of 5 × 1013 G, second lowest among known magnetars, although our timing solution is contaminated by timing noise. The post-outburst flux evolution is well modelled by surface cooling resulting from heat injection in the outer crust, although we cannot rule out other models. We measure an absorption column density similar to that of the open cluster M17 at 10' away, arguing for a comparable distance of 1.6 kpc. If confirmed, this could be the nearest known magnetar.-
dc.languageeng-
dc.publisherCambridge University Press.-
dc.relation.ispartofNeutron Stars and Pulsars: Challenges and Opportunities after 80 years-Proceedings of the International Astronomical Union Symposia-
dc.rightsNeutron Stars and Pulsars: Challenges and Opportunities after 80 years-Proceedings of the International Astronomical Union Symposia. Copyright © Cambridge University Press.-
dc.subjectpulsars: individual (Swift J1822.3-1606)-
dc.subjectstars: neutron-
dc.subjectX-rays: general-
dc.titleThe new magnetar Swift J1822.3-1606en_US
dc.typeConference_Paperen_US
dc.identifier.emailNg, CY: stephen_ng@hku.hk-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1017/S174392131202460X-
dc.identifier.hkuros229533-
dc.identifier.volume8-
dc.identifier.spage486-
dc.identifier.epage488-
dc.publisher.placeUK-
dc.description.otherInternational Astronomical Union Symposia S291, Beijing China, August 2012. In Neutron Stars and Pulsars: Challenges and Opportunities after 80 years-Proceedings of the International Astronomical Union Symposia, 2012, v. 8, p. 486-488-

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