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Revival of the magnetar PSR J1622–4950 : observations with MeerKAT, Parkes, XMM-Newton, Swift, Chandra, and NuSTAR

dc.contributor.authorCamilo, F.en_ZA
dc.contributor.authorSerylak, M.en_ZA
dc.contributor.authorBuchner, S.en_ZA
dc.contributor.authorMerryfield, M.en_ZA
dc.contributor.authorKaspi, V. M.en_ZA
dc.contributor.authorArchibald, R. F.en_ZA
dc.contributor.authorBailes, M.en_ZA
dc.contributor.authorJameson, A.en_ZA
dc.contributor.authorVan Straten, W.en_ZA
dc.contributor.authorSarkissian, J.en_ZA
dc.contributor.authorReynolds, J. E.en_ZA
dc.contributor.authorJohnston, S.en_ZA
dc.contributor.authorHobbs, G.en_ZA
dc.contributor.authorAbbott, T. D.en_ZA
dc.contributor.authorAdam, R. M.en_ZA
dc.contributor.authorAdams, G. B.en_ZA
dc.contributor.authorAlberts, T.en_ZA
dc.contributor.authorAndreas, R.en_ZA
dc.contributor.authorAsad, K. M. B.en_ZA
dc.contributor.authorBaker, D. E.en_ZA
dc.contributor.authorBaloyi, T.en_ZA
dc.contributor.authorBauermeister, E. F.en_ZA
dc.contributor.authorBaxana, T.en_ZA
dc.contributor.authorBennett, T. G. H.en_ZA
dc.contributor.authorBernardi, G.en_ZA
dc.contributor.authorBooisen, D.en_ZA
dc.contributor.authorBooth, R. S.en_ZA
dc.contributor.authorBotha, D. H.en_ZA
dc.contributor.authorBoyana, L.en_ZA
dc.contributor.authorBrederode, L. R. S.en_ZA
dc.contributor.authorBurge, J. P.en_ZA
dc.contributor.authorCheetham, T.en_ZA
dc.contributor.authorConradie, J.en_ZA
dc.contributor.authorConradie, J. P.en_ZA
dc.contributor.authorDavidson, D. B.en_ZA
dc.contributor.authorDe Bruin, G.en_ZA
dc.contributor.authorDe Swardt, B.en_ZA
dc.contributor.authorDe Villier, C.en_ZA
dc.contributor.authorDe Villiers, D. I. L.en_ZA
dc.contributor.authorDe Villiers, M. S.en_ZA
dc.contributor.authorDe Villiers, W.en_ZA
dc.contributor.authorDe Waal, C.en_ZA
dc.contributor.authorDikgale, M. A.en_ZA
dc.contributor.authorDu Toit, G.en_ZA
dc.contributor.authorDu Toit, L. J.en_ZA
dc.contributor.authorEsterhuyse, S. W. P.en_ZA
dc.contributor.authorFanaroff, B.en_ZA
dc.contributor.authorFataar, S.en_ZA
dc.contributor.authorFoley, A. R.en_ZA
dc.contributor.authorFoste, G.en_ZA
dc.contributor.authorFourie, D.en_ZA
dc.contributor.authorGamatham, R.en_ZA
dc.contributor.authorGatsi, T.en_ZA
dc.contributor.authorGeschke, R.en_ZA
dc.contributor.authorGoedhart, S.en_ZA
dc.contributor.authorGrobler, T. L.en_ZA
dc.contributor.authorGumede, S. C.en_ZA
dc.contributor.authorHlakola, M. J.en_ZA
dc.contributor.authorHokwana, A.en_ZA
dc.contributor.authorHoorn, D. H.en_ZA
dc.contributor.authorHorn, D.en_ZA
dc.contributor.authorHorrell, J.en_ZA
dc.contributor.authorHugo, B.en_ZA
dc.contributor.authorIsaacson, A.en_ZA
dc.contributor.authorJacobs, O.en_ZA
dc.contributor.authorVan Rensburg, J. P. Jansenen_ZA
dc.contributor.authorJonas, J. L.en_ZA
dc.contributor.authorJordaan, B.en_ZA
dc.contributor.authorJoubert, A.en_ZA
dc.contributor.authorJoubert, F.en_ZA
dc.contributor.authorJozsa, G. I. G.en_ZA
dc.contributor.authorJulie, R.en_ZA
dc.contributor.authorJulius, C. C.en_ZA
dc.contributor.authorKapp, F.en_ZA
dc.contributor.authorKarastergiou, A.en_ZA
dc.contributor.authorKarels, F.en_ZA
dc.contributor.authorKariseb, M.en_ZA
dc.contributor.authorKaruppusamy, R.en_ZA
dc.contributor.authorKasper, V.en_ZA
dc.contributor.authorKnox-Davies, E. C.en_ZA
dc.contributor.authorKoch, D.en_ZA
dc.contributor.authorKotze, P. P. A.en_ZA
dc.contributor.authorKrebs, A.en_ZA
dc.contributor.authorKriek, N.en_ZA
dc.contributor.authorKriel, H.en_ZA
dc.contributor.authorKusel, T.en_ZA
dc.contributor.authorLamoor, S.en_ZA
dc.contributor.authorLehmensiek, R.en_ZA
dc.contributor.authorLiebenberg, D.en_ZA
dc.contributor.authorLiebenberg, I.en_ZA
dc.contributor.authorLord, R. T.en_ZA
dc.contributor.authorLunsky, B.en_ZA
dc.contributor.authorMabombo, N.en_ZA
dc.contributor.authorMacdonald, T.en_ZA
dc.contributor.authorMacfarlane, P.en_ZA
dc.contributor.authorMadisa, K.en_ZA
dc.contributor.authorMafhungo, L.en_ZA
dc.contributor.authorMagnus, L. G.en_ZA
dc.contributor.authorMagozore, C.en_ZA
dc.contributor.authorMahgoub, O.en_ZA
dc.contributor.authorMain, J. P. L.en_ZA
dc.contributor.authorMakhathini, S.en_ZA
dc.contributor.authorMalan, J. A.en_ZA
dc.contributor.authorMalgas, P.en_ZA
dc.contributor.authorManley, J. R.en_ZA
dc.contributor.authorManzini, M.en_ZA
dc.contributor.authorMarais, L.en_ZA
dc.contributor.authorMarais, N.en_ZA
dc.contributor.authorMarais, S. J.en_ZA
dc.contributor.authorMaree, M.en_ZA
dc.contributor.authorMartens, A.en_ZA
dc.contributor.authorMatshawule, S. D.en_ZA
dc.contributor.authorMatthysen, N.en_ZA
dc.contributor.authorMauch, T.en_ZA
dc.contributor.authorMc Nally, L. D.en_ZA
dc.contributor.authorMerry, B.en_ZA
dc.contributor.authorMillenaar, R. P.en_ZA
dc.contributor.authorMjikelo, C.en_ZA
dc.contributor.authorMkhabela, N.en_ZA
dc.contributor.authorMnyandu, N.en_ZA
dc.contributor.authorMoeng, I. T.en_ZA
dc.contributor.authorMokone, O. J.en_ZA
dc.contributor.authorMonama, T. E.en_ZA
dc.contributor.authorMontshiwa, K.en_ZA
dc.contributor.authorMoss, V.en_ZA
dc.contributor.authorMphego, M.en_ZA
dc.contributor.authorNew, W.en_ZA
dc.contributor.authorNgcebetsha, B.en_ZA
dc.contributor.authorNgoasheng, K.en_ZA
dc.contributor.authorNiehaus, H.en_ZA
dc.contributor.authorNtuli, P.en_ZA
dc.contributor.authorNzama, A.en_ZA
dc.contributor.authorObies, F.en_ZA
dc.contributor.authorObrocka, M.en_ZA
dc.contributor.authorOckards, M. T.en_ZA
dc.contributor.authorOlyn, C.en_ZA
dc.contributor.authorOozeer, N.en_ZA
dc.contributor.authorOtto, A. J.en_ZA
dc.contributor.authorPadayachee, Y.en_ZA
dc.contributor.authorPassmoor, S.en_ZA
dc.contributor.authorPatel, A. A.en_ZA
dc.contributor.authorPaula, S.en_ZA
dc.contributor.authorPeens-Hough, A.en_ZA
dc.contributor.authorPholoholo, B.en_ZA
dc.contributor.authorProzesky, P.en_ZA
dc.contributor.authorRakoma, S.en_ZA
dc.contributor.authorRamaila, A. J. T.en_ZA
dc.contributor.authorRammala, I.en_ZA
dc.contributor.authorRamudzuli, Z. R.en_ZA
dc.contributor.authorRasivhaga, M.en_ZA
dc.contributor.authorRatcliffe, S.en_ZA
dc.contributor.authorReader, H. C.en_ZA
dc.contributor.authorRenil, R.en_ZA
dc.contributor.authorRichter, L.en_ZA
dc.contributor.authorRobyntjies, A.en_ZA
dc.contributor.authorRosekrans, D.en_ZA
dc.contributor.authorRust, A.en_ZA
dc.contributor.authorSalie, S.en_ZA
dc.contributor.authorSambu, N.en_ZA
dc.contributor.authorSchollar, C. T. G.en_ZA
dc.contributor.authorSchwardt, L.en_ZA
dc.contributor.authorSeranyane, S.en_ZA
dc.contributor.authorSethosa, G.en_ZA
dc.contributor.authorSharpe, C.en_ZA
dc.contributor.authorSiebrits, R.en_ZA
dc.contributor.authorSirothia, S. K.en_ZA
dc.contributor.authorSlabber, M. J.en_ZA
dc.contributor.authorSmirnov, O.en_ZA
dc.contributor.authorSmith, S.en_ZA
dc.contributor.authorSofeya, L.en_ZA
dc.contributor.authorSongqumase, N.en_ZA
dc.contributor.authorSpann, R.en_ZA
dc.contributor.authorStappers, B.en_ZA
dc.contributor.authorSteyn, D.en_ZA
dc.contributor.authorSteyn, T. J.en_ZA
dc.contributor.authorStrong, R.en_ZA
dc.contributor.authorStruthers, A.en_ZA
dc.contributor.authorStruthers, A.en_ZA
dc.contributor.authorStuart, C.en_ZA
dc.contributor.authorSunnylall, P.en_ZA
dc.contributor.authorSwart, P. S.en_ZA
dc.contributor.authorTaljaard, B.en_ZA
dc.contributor.authorTasse, C.en_ZA
dc.contributor.authorTaylor, G.en_ZA
dc.contributor.authorTheron, I. P.en_ZA
dc.contributor.authorThondikulam, V.en_ZA
dc.contributor.authorThorat, K.en_ZA
dc.contributor.authorTiplady, A.en_ZA
dc.contributor.authorToruvanda, O.en_ZA
dc.contributor.authorVan Aardt, J.en_ZA
dc.contributor.authorVan Balla, T.en_ZA
dc.contributor.authorVan Den Heever, L.en_ZA
dc.contributor.authorVan Der Byl, A.en_ZA
dc.contributor.authorVan Der Merwe, C.en_ZA
dc.contributor.authorVan Der Merwe, P.en_ZA
dc.contributor.authorVan Niekerk, P. C.en_ZA
dc.contributor.authorVan Rooyen, R.en_ZA
dc.contributor.authorVan Staden, J. P.en_ZA
dc.contributor.authorVan Tonder, V.en_ZA
dc.contributor.authorVan Wyk, R.en_ZA
dc.contributor.authorWait, I.en_ZA
dc.contributor.authorWalker, A. L.en_ZA
dc.contributor.authorWallace, B.en_ZA
dc.contributor.authorWelz, M.en_ZA
dc.contributor.authorWilliams, L. P.en_ZA
dc.contributor.authorXaia, B.en_ZA
dc.contributor.authorYoung, N.en_ZA
dc.contributor.authorZitha, S.en_ZA
dc.date.accessioned2019-09-04T12:59:32Z
dc.date.available2019-09-04T12:59:32Z
dc.date.issued2018
dc.identifier.citationCamilo, F., et al. 2018. Revival of the magnetar PSR J1622–4950 : observations with MeerKAT, Parkes, XMM-Newton, Swift, Chandra, and NuSTAR. Astrophysical Journal, 856(2):1-11, doi:10.3847/1538-4357/aab35a
dc.identifier.issn1538-4357 (online)
dc.identifier.issn0004-637X (print)
dc.identifier.otherdoi:10.3847/1538-4357/aab35a
dc.identifier.urihttp://hdl.handle.net/10019.1/106422
dc.descriptionCITATION: Camilo, F., et al. 2018. Revival of the magnetar PSR J1622–4950 : observations with MeerKAT, Parkes, XMM-Newton, Swift, Chandra, and NuSTAR. Astrophysical Journal, 856(2):1-11, doi:10.3847/1538-4357/aab35a.
dc.descriptionThe original publication is available at https://iopscience.iop.org
dc.description.abstractNew radio (MeerKAT and Parkes) and X-ray (XMM-Newton, Swift, Chandra, and NuSTAR) observations of PSR J1622–4950 indicate that the magnetar, in a quiescent state since at least early 2015, reactivated between 2017 March 19 and April 5. The radio flux density, while variable, is approximately 100× larger than during its dormant state. The X-ray flux one month after reactivation was at least 800× larger than during quiescence, and has been decaying exponentially on a 111 ± 19 day timescale. This high-flux state, together with a radio-derived rotational ephemeris, enabled for the first time the detection of X-ray pulsations for this magnetar. At 5%, the 0.3–6 keV pulsed fraction is comparable to the smallest observed for magnetars. The overall pulsar geometry inferred from polarized radio emission appears to be broadly consistent with that determined 6–8 years earlier. However, rotating vector model fits suggest that we are now seeing radio emission from a different location in the magnetosphere than previously. This indicates a novel way in which radio emission from magnetars can differ from that of ordinary pulsars. The torque on the neutron star is varying rapidly and unsteadily, as is common for magnetars following outburst, having changed by a factor of 7 within six months of reactivation.en_ZA
dc.description.urihttps://iopscience.iop.org/article/10.3847/1538-4357/aab35a
dc.format.extent11 pages
dc.language.isoen_ZAen_ZA
dc.publisherAmerican Astronomical Societyen_ZA
dc.subjectPulsarsen_ZA
dc.titleRevival of the magnetar PSR J1622–4950 : observations with MeerKAT, Parkes, XMM-Newton, Swift, Chandra, and NuSTARen_ZA
dc.typeArticleen_ZA
dc.description.versionPublisher's version
dc.rights.holderAmerican Astronomical Societyen_ZA


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