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Related papers: A very young radio-loud magnetar

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We present the results obtained from timing and spectral studies of the newly discovered accreting X-ray binary pulsar Swift J0243.6+6124 using a NuSTAR observation in 2017 October at a flux level of ~280 mCrab. Pulsations at 9.85423(5) s…

High Energy Astrophysical Phenomena · Physics 2017-11-30 Gaurava K. Jaisawal , Sachindra Naik , J. Chenevez

The majority of short gamma-ray bursts (SGRBs) are thought to originate from the merger of compact binary systems collapsing directly to form a black hole. However, it has been proposed that both SGRBs and long gamma-ray bursts (LGRBs) may,…

We present the results of our long term radio monitoring campaign at 1.3GHz (MeerKAT) and 15.5GHz (Arcminute Microkelvin Imager - Large Array, AMI-LA) for the outburst of the recently discovered neutron star X-ray binary Swift J1858.6-0814.…

High Energy Astrophysical Phenomena · Physics 2022-04-13 L. Rhodes , R. P. Fender , S. E. Motta , J. van den Eijnden , D. R. A. Williams , J. S. Bright , G. R. Sivakoff

We report on the aftermath of a magnetar outburst from the young, high-magnetic-field radio pulsar PSR J1119-6127 that occurred on 2016 July 27. We present the results of a monitoring campaign using the Neil Gehrels Swift X-ray Telescope,…

High Energy Astrophysical Phenomena · Physics 2019-01-09 R. F. Archibald , V. M. Kaspi , S. P. Tendulkar , P. Scholz

The hard X-ray transient source Swift J1845.7-0037 was discovered in 2012 by Swift/BAT. However, at that time no dedicated observations of the source were performed. On Oct 2019 the source became active again, and X-ray pulsations with a…

High Energy Astrophysical Phenomena · Physics 2020-02-12 V. Doroshenko , S. Tsygankov , J. Long , A. Santangelo , S. Molkov , A. Lutovinov , L. D. Kong , S. Zhang

We report on INTEGRAL observations of the soft $\gamma$-ray repeater SGR 1935+2154 performed between 2020 April 28 and May 3. Several short bursts with fluence of $\sim10^{-7}-10^{-6}$ erg cm$^{-2}$ were detected by the IBIS instrument in…

We report the discovery of PSR J1847-0130, a radio pulsar with a 6.7-s spin period, in the Parkes multibeam survey of the Galactic plane. The slowdown rate for the pulsar, 1.3x10^{-12} s/s, is high and implies a surface dipole magnetic…

Swift J1858.6-0814 is a recently discovered X-ray binary notable for extremely strong variability (by factors $>100$ in soft X-rays) in its discovery state. We present the detection of five thermonuclear (Type I) X-ray bursts from Swift…

We report on the Swift detection of a thermonuclear X-ray burst from the very-faint quasi-persistent neutron star X-ray binary XMMU J174716.1-281048, which triggered the satellite's Burst Alert Telescope (BAT) on 2010 August 13. Analysis of…

High Energy Astrophysical Phenomena · Physics 2015-05-27 N. Degenaar , R. Wijnands , R. Kaur

Magnetars are a promising candidate for the origin of Fast Radio Bursts (FRBs). The detection of an extremely luminous radio burst from the Galactic magnetar SGR J1935+2154 on 2020 April 28 added credence to this hypothesis. We report on…

We discuss the origin of two triggers of Swift's Burst Alert Telescope (BAT) that occurred in 2011. The triggers were identified with Swift J185003.2-005627, a previously unknown X-ray source, and the known but unclassified X-ray transient…

High Energy Astrophysical Phenomena · Physics 2015-06-11 N. Degenaar , M. Linares , D. Altamirano , R. Wijnands

We present timing and spectral analysis of a sample of seven hard X-ray selected Cataclysmic Variable candidates based on simultaneous X-ray and optical observations collected with XMM-Newton , complemented with Swift/BAT and INTEGRAL/IBIS…

High Energy Astrophysical Phenomena · Physics 2017-08-02 F. Bernardini , D. de Martino , K. Mukai , D. M. Russell , M. Falanga , N. Masetti , C. Ferrigno , G. Israel

The Be X-ray pulsar, SMC X-3 underwent a giant outburst from 2016 August to 2017 March, which was monitored with the Swift satellite. During the outburst, its broadband flux increased dramatically, and the unabsorbed X-ray luminosity…

High Energy Astrophysical Phenomena · Physics 2017-07-19 Shan-Shan Weng , Ming-Yu Ge , Hai-Hui Zhao , Wei Wang , Shuang-Nan Zhang , Wei-Hao Bian , Qi-Rong Yuan

The 6.67 hr periodicity and the variable X-ray flux of the central compact object (CCO) at the center of the SNR RCW 103, named 1E 161348-5055, have been always difficult to interpret within the standard scenarios of an isolated neutron…

High Energy Astrophysical Phenomena · Physics 2016-09-07 Nanda Rea , Alice Borghese , Paolo Esposito , Francesco Coti Zelati , Matteo Bachetti , Gian Luca Israel , Andrea De Luca

We report on the detection of a bright, short, structured X-ray burst coming from the supernova remnant RCW 103 on 2016 June 22 caught by the Swift/BAT monitor, and on the follow-up campaign made with Swift/XRT, Swift/UVOT and the…

Magnetars are slowly rotating, highly magnetized young neutron stars that can show transient radio phenomena for radio pulses and fast radio bursts. We conducted radio observations of from two magnetars SGR$~$J1935+2154 and…

High Energy Astrophysical Phenomena · Physics 2025-02-03 Lang Xie , J. L. Han , Z. L. Yang , W. C. Jing , D. J. Zhou , W. Q. Su , Yi Yan , Tao Wang , N. N. Cai , P. F. Wang , Chen Wang

We present here timing and spectral analyses of SGR J1830$-$0645 based on an AstroSat observation carried out on 2020 October 16, about a week after the onset of its first detected X-ray outburst. Using data taken with the Soft X-ray…

High Energy Astrophysical Phenomena · Physics 2023-10-17 Rahul Sharma , Chetana Jain , Biswajit Paul , T. R. Seshadri

We report on the detailed study of the 2008 October outburst from the anomalous X-ray pulsar (AXP) 1E 1547.0-5408 discovered through the Swift/Burst Alert Telescope (BAT) detection of SGR-like short X-ray bursts on 2008 October 3. The…

We report on the discovery of a new member of the magnetar class, SGR J1935+2154, and on its timing and spectral properties measured by an extensive observational campaign carried out between July 2014 and March 2015 with Chandra and…

Swift J1842.5$-$1124 is a transient Galactic black hole X-ray binary candidate, which underwent a new outburst in May 2020. We performed multi-epoch MeerKAT radio observations under the ThunderKAT Large Survey Programme, coordinated with…

High Energy Astrophysical Phenomena · Physics 2021-12-15 X. Zhang , W. Yu , S. E. Motta , R. Fender , P. Woudt , J. C. A. Miller-Jones , G. R. Sivakoff