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Related papers: Where is SGR1806-20?

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We analyze a bright and rare burst, GRB20221009A, showing through NED data that the angular distance between GRB221009A and the supernova SN 2022xiw is almost the same angular separation with galactic objects, i.e., the SN-GRB connection at…

High Energy Astrophysical Phenomena · Physics 2024-10-25 Carlos Navia , Marcel Oliveira , B. Felicio , Andre Nepomuceno

We report on bursts from the Soft Gamma-Ray Repeater SGR 1806--20 detected with INTEGRAL in October 2003, during a period of moderate activity of the source. The spectral and temporal properties of 21 short bursts are consistent with those…

Astrophysics · Physics 2016-08-30 D. Gotz , S. Mereghetti , I. F. Mirabel , K. Hurley

We have obtained deep optical images with the Very Large Telescope at ESO of the first well-localized short-duration gamma-ray burst, GRB 050509B. From V and R imaging, initiated ~2 days after the GRB trigger and lasting up to three weeks,…

Soft gamma repeaters (SGRs) have unique properties that make them intriguing targets for gravitational wave (GW) searches. They are nearby, their burst emission mechanism may involve neutron star crust fractures and excitation of…

High Energy Astrophysical Phenomena · Physics 2010-04-28 P. Kalmus , K. C. Cannon , S. Marka , B. J. Owen

Thanks to INTEGRAL's long exposures of the Galactic Plane, the two brightest Soft Gamma-Ray Repeaters, SGR 1806-20 and SGR 1900+14, have been monitored and studied in detail for the first time at hard-X/soft-gamma rays. SGR 1806-20, lying…

We analyzed temporal and spectral properties, focusing on the short bursts, for three anomalous X-ray pulsars (AXPs) and soft gamma repeaters (SGRs), including SGR 1806-20, 1E 1048-5937 and SGR 0501+4516. Using the data from XMM-Newton, we…

High Energy Astrophysical Phenomena · Physics 2015-06-19 Zhijie Qu , Zhaosheng Li , Yupeng Chen , Shi Dai , Long Ji , Renxin Xu , Shu Zhang

We discuss observations of the soft gamma repeater SGR 1806-20 during the RXTE Target of Opportunity observations made in November 1996. During the ~50 ksec RXTE observation, HEXTE (15-250 keV) detected 17 bursts from the source, with…

Astrophysics · Physics 2009-10-30 D. Marsden , R. E. Rothschild , C. Kouveliotou , S. Dieters , J. van Paradijs

Soft gamma repeaters are high-energy transient sources associated with neutron stars in young supernova remnants. They emit sporadic, short (~ 0.1 s) bursts with soft energy spectra during periods of intense activity. The event of March 5,…

We present a systematic search for short-duration gamma-ray bursts (GRBs) in the local Universe based on 14 years of observations with the Neil Gehrels Swift Observatory. We cross-correlate the GRB positions with the GLADE catalogue of…

High Energy Astrophysical Phenomena · Physics 2020-02-12 S. Dichiara , E. Troja , B. O'Connor , F. E. Marshall , P. Beniamini , J. K. Cannizzo , A. Y. Lien , T. Sakamoto

In 2008 August, the new soft gamma-ray repeater SGR 0501+4516 was discovered by Swift. The source was soon confirmed by several groups in space- and ground-based multi-wavelength observations. In this letter we report the analysis of five…

High Energy Astrophysical Phenomena · Physics 2011-02-11 R. L. Aptekar , T. L. Cline , D. D. Frederiks , S. V. Golenetskii , E. P. Mazets , V. D. Pal'shin

A ~50 ks XMM-Newton observation of SGR 1900+14 has been carried out in September 2005, after almost three years during which no bursts were detected from this soft gamma-ray repeater. The 0.8-10 keV spectrum was well fit by a power law plus…

Astrophysics · Physics 2008-11-26 S. Mereghetti , P. Esposito , A. Tiengo , S. Zane , R. Turolla , L. Stella , G. L. Israel , D. Gotz , M. Feroci

The Soft Gamma Repeater 1806-20 produced patterns of bursts during its 1983 outburst that indicate multiple independent energy accumulation sites, each driven by a continuous power source, with sudden, incomplete releases of the accumulated…

Astrophysics · Physics 2009-10-31 David M. Palmer

Two short (<2 s) g-ray bursts (GRBs) have recently been localized and fading afterglow counterparts detected. The combination of these two results left unclear the nature of the host galaxies of the bursts, because one was a star-forming…

We report evidence of cyclotron resonance features from the Soft Gamma Repeater SGR 1806-20 in outburst, detected with the Rossi X-ray Timing Explorer in the spectrum of a long, complex precursor that preceded a strong burst. The features…

We present results from Swift, XMM-Newton, and deep INTEGRAL monitoring in the region of GRB 050925. This short Swift burst is a candidate for a newly discovered soft gamma-ray repeater (SGR) with the following observational burst…

We present evidence of a 6.4 keV emission line during a burst from the soft gamma-ray repeater SGR 1900+14. The Rossi X-ray Timing Explorer (RXTE) monitored this source extensively during its outburst in the summer of 1998. A strong burst…

Astrophysics · Physics 2009-10-31 Tod E. Strohmayer , Alaa I. Ibrahim

We present evidence supporting a SNR origin for the radio source G337.2+0.1, which was discovered along the line of sight to the Norma spiral arm in the MOST 843-MHz radio survey. The radio source is spatially superposed to the unidentified…

Astrophysics · Physics 2009-11-10 J. A. Combi , P. Benaglia , G. E. Romero , M. Sugizaki

We report the detection and interferometric localization of the repeating fast radio burst (FRB) source FRB 20220912A during commissioning observations with the Deep Synoptic Array (DSA-110). Two bursts were detected from FRB 20220912A, one…

The region around SGR 1806-20 and its host stellar cluster Cl* 1806-20 is a potentially important site of particle acceleration. The soft $\gamma-$ray repeater and Cl* 1806-20, which also contains several very massive stars including a…

High Energy Astrophysical Phenomena · Physics 2016-08-17 Paul K. H. Yeung , Albert K. H. Kong , P. H. Thomas Tam , Lupin C. C. Lin , C. Y. Hui , Chin-Ping Hu , K. S. Cheng

The soft gamma repeater SGR 1806-20 is most famous for its giant flare from 2004, which yielded the highest gamma-ray flux ever observed on Earth. The flare emphasized the importance of determining the distance to the SGR, thus revealing…

High Energy Astrophysical Phenomena · Physics 2015-05-27 Gilad Svirski , Ehud Nakar , Eran O. Ofek