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We report the radio and high-energy properties of a new outburst from the radio-loud magnetar 1E 1547.0$-$5408. Following the detection of a short burst from the source with Swift-BAT on 2022 April 7, observations by NICER detected an…

We present the evolution of the X-ray emission properties of the magnetar 1E 1547.0-5408 since February 2004 over a time period covering three outbursts. We analyzed new and archival observations taken with the Swift, NuSTAR, Chandra and…

The magnetar 1E~1547$-$5408 recently exhibited two periods of outburst, beginning on 2008 October 3 and 2009 January 22. Here we present an analysis of the persistent radiative evolution and a statistical study of the burst properties…

High Energy Astrophysical Phenomena · Physics 2015-05-28 Paul Scholz , Victoria M. Kaspi

We report the detection of eight bright X-ray bursts from the 6.5-s magnetar 1E 1048.1-5937, during a 2013 July observation campaign with the Nuclear Spectroscopic Telescope Array (NuSTAR). We study the morphological and spectral properties…

We report on two years of flux and spin evolution monitoring of 1E 1048.1$-$5937, a 6.5-s X-ray pulsar identified as a magnetar. Using {\it Swift} XRT data, we observed an X-ray outburst consisting of an increase in the persistent 1--10 keV…

High Energy Astrophysical Phenomena · Physics 2015-06-23 R. F. Archibald , V. M. Kaspi , C. -Y. Ng , P. Scholz , A. P. Beardmore , N. Gehrels , J. A. Kennea

We report on simultaneous NuSTAR and XMM-Newton observations of the magnetar 1E 1048.1$-$5937 obtained in July 2013, along with Rossi X-ray Timing Explorer (RXTE) data for the same source obtained from December 2002 through March 2012. The…

High Energy Astrophysical Phenomena · Physics 2016-11-09 C. Yang , R. F. Archibald , J. K. Vogel , H. An , V. M. Kaspi , S. Guillot , A. M. Beloborodov , M. Pivovaroff

With two consecutive outbursts recorded in four months (October 2008 and January 2009), and a possible third outburst in 2007, 1E 1547.0-5408 is one of the most active transient anomalous X-ray pulsars known so far. Thanks to extensive…

High Energy Astrophysical Phenomena · Physics 2016-08-14 F. Bernardini , G. L. Israel , L. Stellaınst , R. Turolla , P. Esposito , N. Rea , S. Zane , A. Tiengo , S. Campana , D. Gotz , S. Mereghetti , P. Romano

We report on a new NuSTAR observation and on the ongoing Swift XRT monitoring campaign of the peculiar source 1E 161348-5055, located at the centre of the supernova remnant RCW 103, which is recovering from its last outburst in June 2016.…

High Energy Astrophysical Phenomena · Physics 2018-05-16 A. Borghese , F. Coti Zelati , P. Esposito , N. Rea , A. De Luca , M. Bachetti , G. L. Israel , R. Perna , J. A. Pons

We report on a 350-ks NuSTAR observation of the magnetar 1E 1841-045 taken in 2013 September. During the observation, NuSTAR detected six bursts of short duration, with $T_{90}<1$ s. An elevated level of emission tail is detected after the…

We report on the 2004 June 29 burst detected from the direction of the Anomalous X-ray Pulsar (AXP) 1E 1048.1-5937 using the Rossi X-ray Timing Explorer (RXTE). We find a simultaneous increase of ~3.5 times the quiescent value in the 2-10…

Astrophysics · Physics 2009-11-13 Fotis P. Gavriil , Victoria M. Kaspi , Peter M. Woods

We present the results of X-ray and near-IR observations of the anomalous X-ray pulsar 1E 1048.1-5937, believed to be a magnetar. This AXP underwent a period of extreme variability during 2001-2004, but subsequently entered an extended and…

Astrophysics · Physics 2009-06-23 Cindy R. Tam , Fotis P. Gavriil , Rim Dib , Victoria M. Kaspi , Peter M. Woods , Cees Bassa

The magnetar Swift J1555.2-5402 was discovered in outburst on 2021 June 3 by the Burst Alert Telescope on board the Swift satellite. Early X-ray follow-up revealed a spin period P~3.86 s, a period derivative Pdot~3e-11 s/s, dozens of short…

We present the timing and spectral analyses of the NICER, NuSTAR, and IXPE observations of the magnetar 1E 1841-045 covering 82 days following its August 2024 bursting activity as well as radio observations utilizing MeerKAT and Effelsberg.…

We analyzed broad-band X-ray and radio data of the magnetar SGR J1935+2154 taken in the aftermath of its 2014, 2015, and 2016 outbursts. The source soft X-ray spectrum <10 keV is well described with a BB+PL or 2BB model during all three…

We observed the slowly revolving pulsar 1E 161348-5055 (1E 1613, spin period of 6.67 h) in the supernova remnant RCW 103 twice with XMM-Newton and once with the Very Large Telescope (VLT). The VLT observation was performed on 2016 June 30,…

High Energy Astrophysical Phenomena · Physics 2019-06-14 P. Esposito , A. De Luca , R. Turolla , F. Coti Zelati , W. Hummel , A. Tiengo , G. L. Israel , N. Rea , R. P. Mignani , A. Borghese

The fastest-rotating magnetar 1E 1547.0-5408 was observed in broad-band X-rays with Suzaku for 33 ks on 2009 January 28-29, 7 days after the onset of its latest bursting activity. After removing burst events, the absorption-uncorrected 2-10…

We report on NICER X-ray monitoring of the magnetar SGR 1830-0645 covering 223 days following its October 2020 outburst, as well as Chandra and radio observations. We present the most accurate spin ephemerides of the source so far:…

The magnetar 1E 1547.0-5408 exhibited outbursts in October 2008 and January 2009. In this paper we present in great detail the evolution of the temporal and spectral characteristics of the persistent total and pulsed emission of 1E…

High Energy Astrophysical Phenomena · Physics 2015-06-03 L. Kuiper , W. Hermsen , P. R. den Hartog , J. O. Urama

We present a long-term study of the 2011 outburst of the magnetar Swift J1834.9-0846 carried out using new Chandra observations, as well as all the available Swift, RXTE, and XMM-Newton data. The last observation was performed on 2011…

High Energy Astrophysical Phenomena · Physics 2013-02-14 P. Esposito , A. Tiengo , N. Rea , R. Turolla , A. Fenzi , A. Giuliani , G. L. Israel , S. Zane , S. Mereghetti , A. Possenti , M. Burgay , L. Stella , D. Götz , R. Perna , R. P. Mignani , P. Romano

(Abridged) We report on new and archival X-ray and near-infrared observations of the anomalous X-ray pulsar 1E 1048.1-5937 performed between 2001-2007 with RXTE, CXO, Swift, HST, and VLT. During its ~2001-2004 active period, 1E 1048.-5937…

Astrophysics · Physics 2009-11-13 Cindy R. Tam , Fotis P. Gavriil , Rim Dib , Victoria M. Kaspi , Peter M. Woods , Cees Bassa
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