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We report on multi-frequency radio observations of the new magnetar Swift J1818.0-1607, following it for more than one month with high cadence. The observations commenced less than 35 hours after its registered first outburst. We obtained…

Swift J1818.0-1607 is a new radio-loud magnetar discovered by the Swift Burst Alert Telescope on 2020 March 12. It has a magnetic field B~2.5e14 G, spin-down luminosity of 7.2e35 ergs/s, and characteristic age of ~470yr. Here we report on…

High Energy Astrophysical Phenomena · Physics 2020-12-02 Harsha Blumer , Samar Safi-Harb

Swift J1818.0-1607 discovered in early 2020 is not only the fifth magnetar known with periodic radio pulsations but also the fastest rotating one. Simultaneous 2.25 and 8.60 GHz observations of Swift J1818.0-1607 were carried out with…

High Energy Astrophysical Phenomena · Physics 2021-05-26 Zhi-Peng Huang , Zhen Yan , Zhi-Qiang Shen , Hao Tong , Lin Lin , Jian-Ping Yuan , Jie Liu , Ru-Shuang Zhao , Ming-Yu Ge , Rui Wang

Swift J1818.0-1607 is a radio-loud magnetar with a spin period of 1.36 s and a dipolar magnetic field strength of B~3E14 G, which is very young compared to the Galactic pulsar population. We report here on the long-term X-ray monitoring…

On 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,…

High Energy Astrophysical Phenomena · Physics 2015-06-11 P. Scholz , C. -Y. Ng , M. A. Livingstone , V. M. Kaspi , A. Cumming , R. Archibald

The magnetar Swift ,J1818.0-1607 was discovered in March 2020 when Swift detected a 9 ms hard X-ray burst and a long-lived outburst. Prompt X-ray observations revealed a spin period of 1.36 s, soon confirmed by the discovery of radio…

We report on the long term X-ray monitoring with Swift, RXTE, Suzaku, Chandra, and XMM-Newton of the outburst of the newly discovered magnetar Swift J1822.3-1606 (SGR 182-1606), from the first observations soon after the detection of the…

We report results from an observational campaign of the radio-loud magnetar Swift J1818.0-1607 using the Green Bank Telescope (GBT) at 2.0 GHz, which began in November 2021 during a period of reduced activity approximately 20 months after…

High Energy Astrophysical Phenomena · Physics 2025-07-29 Moaz Abdelmaguid , Paulo C. C. Freire , Joseph D. Gelfand , Yogesh Maan , Samayra Straal , J. A. J. Alford

We report on the long term X-ray monitoring with Swift, RXTE, Suzaku, Chandra and XMM-Newton of the outburst of the newly discovered magnetar Swift J1822.3-1606 (SGR 1822-1606), from the first observations soon after the detection of the…

We report on the the long term monitoring campaign of the seemingly youngest magnetar Swift~J1818.0-1607 at radio and X-ray wavelengths over a span of one year. We obtained a coherent timing solution for the magnetar over the same time…

High Energy Astrophysical Phenomena · Physics 2022-03-02 K. M. Rajwade , B. W. Stappers , A. G. Lyne , B. Shaw , M. B. Mickaliger , K. Liu , M. Kramer , G. Desvignes , R. Karuppusamy , T. Enoto , T. Güver , Chin-Ping Hu , M. P. Surnis

Boasting supreme magnetic strengths, magnetars are among the prime candidates to generate fast radio bursts. Several theories have been proposed for the formation mechanism of magnetars, but have not yet been fully tested. As different…

High Energy Astrophysical Phenomena · Physics 2023-03-07 Hao Ding , Adam Deller , Marcus Lower , Ryan Shannon

In addition to being the most magnetic objects in the known universe, magnetars are the only objects observed to generate fast-radio-burst-like emissions. The formation mechanism of magnetars is still highly debated, and may potentially be…

High Energy Astrophysical Phenomena · Physics 2024-06-10 Hao Ding , Marcus E. Lower , Adam T. Deller , Ryan M. Shannon , Fernando Camilo , John Sarkissian

On 2011 July 14, a new magnetar candidate, Swift J1822.3-1606, was identified via a rate trigger on the Swift/Burst Alert Telescope. Here we present an initial analysis of the X-ray properties of the source, using data from the Rossi X-ray…

High Energy Astrophysical Phenomena · Physics 2015-05-30 Margaret A. Livingstone , Paul Scholz , Victoria M. Kaspi , C. -Y. Ng , Fotis P. Gavriil

We report on the hard X-ray burst and the first ~100 days NICER monitoring of the soft X-ray temporal and spectral evolution of the newly-discovered magnetar Swift J1818.0-1607. The burst properties are typical of magnetars with a duration…

The first wind nebula around a magnetar was recently discovered in X-rays around Swift~J1834.9$-$0846. We study this magnetar's global energetics and the properties of its particle wind or outflows. At a distance of $\sim4\;$kpc,…

High Energy Astrophysical Phenomena · Physics 2016-12-07 Jonathan Granot , Ramandeep Gill , George Younes , Josef Gelfand , Alice Harding , Chryssa Kouveliotou , Matthew G. Baring

The different timing results of the magnetar Swift J1822.3-1606 is analyzed and understood theoretically. It is pointed that different timing solutions are caused not only by timing noise, but also that the period derivative is decreasing…

High Energy Astrophysical Phenomena · Physics 2015-06-12 H. Tong , R. X. Xu

We have analyzed the Swift data relevant to the high mass X-ray binary Swift J1816.7-1613. The timing analysis of the BAT survey data unveiled a modulation at a period of P_0=118.5+/-0.8 days that we interpret as the orbital period of the…

High Energy Astrophysical Phenomena · Physics 2015-06-22 V. La Parola , A. Segreto , G. Cusumano , N. Masetti , A. D'Ai , A. Melandri

We report the discovery of a new X-ray pulsar, XTE J1810-197. The source was serendipitously discovered on 2003 July 15 by the Rossi X-ray Timing Explorer (RXTE) while observing the soft gamma repeater SGR 1806-20. The pulsar has a 5.54 s…

We present results of investigation of the poorly studied X-ray pulsar Swift J1816.7--1613 during its transition from the type I outburst to the quiescent state. Our studies are based on the data obtained from X-ray observatories…

Swift J1822.3-1606 was discovered on 2011 July 14 by the Swift Burst Alert Telescope following the detection of several bursts. The source was found to have a period of 8.4377 s and was identified as a magnetar. Here we present a…

High Energy Astrophysical Phenomena · Physics 2015-06-04 P. Scholz , C. -Y. Ng , M. A. Livingstone , V. M. Kaspi , A. Cumming , R. Archibald
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