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Article: Post-outburst observations of the magnetically active pulsar J1846-0258. a new braking index, increased timing noise, and radiative recovery

TitlePost-outburst observations of the magnetically active pulsar J1846-0258. a new braking index, increased timing noise, and radiative recovery
Authors
KeywordsPulsars: General
Pulsars: Individual (Psr J1846-0258)
Supernovae: Individual (Kes 75)
X-Rays: Stars
Issue Date2011
PublisherInstitute of Physics Publishing Ltd. The Journal's web site is located at http://iopscience.iop.org/0004-637X
Citation
Astrophysical Journal, 2011, v. 730 n. 2, article no. 66 How to Cite?
AbstractThe 800 year old pulsar J1846-0258 is a unique transition object between rotation-powered pulsars and magnetars: though behaving like a rotation-powered pulsar most of the time, in 2006 it exhibited a distinctly magnetar-like outburst accompanied by a large glitch. Here, we present X-ray timing observations taken with the Rossi X-ray Timing Explorer over a 2.2year period after the X-ray outburst and glitch had recovered. We observe that the braking index of the pulsar, previously measured to be n = 2.65 0.01, is now n = 2.16 0.13, a decrease of 18% 5%. We also note a persistent increase in the timing noise relative to the pre-outburst level. Despite the timing changes, a 2009 Chandra X-ray Observatory observation shows that the X-ray flux and spectrum of the pulsar and its wind nebula are consistent with the quiescent levels observed in 2000. © 2011. The American Astronomical Society. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/180497
ISSN
2015 Impact Factor: 5.909
2015 SCImago Journal Rankings: 3.266
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLivingstone, MAen_US
dc.contributor.authorNg, CYen_US
dc.contributor.authorKaspi, VMen_US
dc.contributor.authorGavriil, FPen_US
dc.contributor.authorGotthelf, EVen_US
dc.date.accessioned2013-01-28T01:38:51Z-
dc.date.available2013-01-28T01:38:51Z-
dc.date.issued2011en_US
dc.identifier.citationAstrophysical Journal, 2011, v. 730 n. 2, article no. 66en_US
dc.identifier.issn0004-637Xen_US
dc.identifier.urihttp://hdl.handle.net/10722/180497-
dc.description.abstractThe 800 year old pulsar J1846-0258 is a unique transition object between rotation-powered pulsars and magnetars: though behaving like a rotation-powered pulsar most of the time, in 2006 it exhibited a distinctly magnetar-like outburst accompanied by a large glitch. Here, we present X-ray timing observations taken with the Rossi X-ray Timing Explorer over a 2.2year period after the X-ray outburst and glitch had recovered. We observe that the braking index of the pulsar, previously measured to be n = 2.65 0.01, is now n = 2.16 0.13, a decrease of 18% 5%. We also note a persistent increase in the timing noise relative to the pre-outburst level. Despite the timing changes, a 2009 Chandra X-ray Observatory observation shows that the X-ray flux and spectrum of the pulsar and its wind nebula are consistent with the quiescent levels observed in 2000. © 2011. The American Astronomical Society. All rights reserved.en_US
dc.languageengen_US
dc.publisherInstitute of Physics Publishing Ltd. The Journal's web site is located at http://iopscience.iop.org/0004-637Xen_US
dc.relation.ispartofAstrophysical Journalen_US
dc.subjectPulsars: Generalen_US
dc.subjectPulsars: Individual (Psr J1846-0258)en_US
dc.subjectSupernovae: Individual (Kes 75)en_US
dc.subjectX-Rays: Starsen_US
dc.titlePost-outburst observations of the magnetically active pulsar J1846-0258. a new braking index, increased timing noise, and radiative recoveryen_US
dc.typeArticleen_US
dc.identifier.emailNg, CY: stephen_ng@hku.hken_US
dc.identifier.authorityNg, CY=rp01706en_US
dc.description.naturelink_to_OA_fulltexten_US
dc.identifier.doi10.1088/0004-637X/730/2/66en_US
dc.identifier.scopuseid_2-s2.0-79953677506en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-79953677506&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume730en_US
dc.identifier.issue2en_US
dc.identifier.isiWOS:000288441900006-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridLivingstone, MA=9434675600en_US
dc.identifier.scopusauthoridNg, CY=24830903500en_US
dc.identifier.scopusauthoridKaspi, VM=7006755510en_US
dc.identifier.scopusauthoridGavriil, FP=6602456240en_US
dc.identifier.scopusauthoridGotthelf, EV=7006992105en_US
dc.customcontrol.immutablejt 130808-

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