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相关论文: "Clocked" Bursts From GS 1826-238

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Data of the 1996 outburst of the single-known accreting millisecond pulsar SAX J1808.4-3658, taken with the Wide Field Cameras (WFCs) on BeppoSAX, are revisited with more complete data coverage and more comprehensive analysis techniques…

We have analysed in detail the discovery measurements of the X-ray burster SAX J1750.8-2900 by the Wide Field Cameras on board BeppoSAX in spring 1997, at a position ~1.2 degrees off the Galactic Centre. The source was in outburst on March…

天体物理学 · 物理学 2009-10-31 L. Natalucci , R. Cornelisse , A. Bazzano , M. Cocchi , P. Ubertini , J. Heise , J. J. M. in 't Zand , E. Kuulkers

We present the results of an analysis of the quiescent X-ray emission from the Soft Gamma-Ray Repeater SGR1806-20, taken during an INTEGRAL ultra-deep survey of the Galactic Center region in autumn 2003. The total effective exposure time…

天体物理学 · 物理学 2009-11-10 S. Molkov , K. Hurley , R. Sunyaev , P. Shtykovsky , M. Revnivtsev

The flux and spectrum of the black hole candidate GX339-4 has been monitored by the Burst and Transient Source Experiment (BATSE) on the Compton Gamma-ray Observatory (CGRO) since the observatory became operational in May 1991. Between the…

天体物理学 · 物理学 2009-10-30 B. C. Rubin , B. A. Haron , W. S. Paciesas , C. R. Robinson , S. N. Zhang , G. J. Fishman

Type I X-ray bursts from low-mass X-ray binaries result from a thermonuclear runaway in the material accreted onto the neutron star. Although typical recurrence times are a few hours, consistent with theoretical ignition model predictions,…

高能天体物理现象 · 物理学 2015-05-19 L. Keek , D. K. Galloway , J. J. M. in 't Zand , A. Heger

Four or five new outbursts were detected of the bright X-ray transient GRS 1747-312 in the globular cluster Terzan 6 between 1996 and 1999, through monitoring campaigns with the Wide Field Cameras (WFCs) on BeppoSAX and the Proportional…

We report on long-term observations of the Galactic-bulge black hole candidates 1E 1740.7-2942 and GRS 1758-258 with the Rossi X-Ray Timing Explorer. 1E 1740.7-2942 has been observed 77 times and GRS 1758-258 has been observed 82 times over…

天体物理学 · 物理学 2009-10-31 D. S. Main , D. M. Smith , W. A. Heindl , J. Swank , M. Leventhal , I. F. Mirabel , L. F. Rodriguez

We report on our discovery and follow-up observations of the X-ray source SAX J1747.0-2853 detected in outburst on 1998, March 10 with the BeppoSAX Wide Field Cameras in the energy range 2-28 keV. The source is located about half degree off…

天体物理学 · 物理学 2009-10-31 L. Natalucci , A. Bazzano , M. Cocchi , P. Ubertini , J. Heise , E. Kuulkers , J. J. M. in 't Zand

We report on NuSTAR and Swift observations of a soft state of the neutron star low-mass X-ray binary GS 1826-24, commonly known as the "clocked" burster. The transition to the soft state was recorded in 2014 June through an increase of the…

GRB970402 is the fourth gamma-ray burst detected by BeppoSAX simultaneously in the Gamma Ray Burst Monitor (GRBM) and one of the two Wide Field Cameras (WFCs). A rapid pointing of the BeppoSAX Narrow Field Instruments (NFIs) 8 hours after…

We performed a search for fast X-ray transients (FXTs), with durations longer than one second and less than one day, through data of the Wide Field Camera (WFC) instrument onboard the BeppoSAX X-ray observatory collected between June 1996…

高能天体物理现象 · 物理学 2026-05-05 J. J. M. in 't Zand , C. Guidorzi , J. Heise , L. Amati , E. Kuulkers , F. Frontera , G. Gianfagna , L. Piro

We present the spectral and timing evolution of the persistent black hole X-ray binary GRS 1758-258 based on almost 12 years of observations using the Rossi X-ray Timing Explorer Proportional Counter Array. While the source was…

We analyze 24 type I X-ray bursts from GS 1826-24 observed by the Rossi X-ray Timing Explorer between 1997 November and 2002 July. The bursts observed between 1997-98 were consistent with a stable recurrence time of 5.74 +/- 0.13 hr. The…

天体物理学 · 物理学 2009-11-10 D. K. Galloway , A. Cumming , E. Kuulkers , L. Bildsten , D. Chakrabarty , R. E. Rothschild

For the first time X-ray bursts have been detected from a sky position consistent with the one of GRS 1741.9-2853, a GRANAT transient source located only ~10' from the Galactic Centre. A total of 3 bursts have been observed by the Wide…

天体物理学 · 物理学 2007-05-23 M. Cocchi , A. Bazzano , L. Natalucci , P. Ubertini , J. Heise , J. M. Muller , J. J. M. in 't Zand

We report on a 63ks Chandra observation of the X-ray transient Swift J195509.6+261406 discovered as the afterglow of what was first believed to be a long duration Gamma-Ray Burst (GRB 070610). The outburst of this source was characterized…

星系天体物理 · 物理学 2012-03-23 N. Rea , P. G. Jonker , G. Nelemans , J. A. Pons , M. M. Kasliwal , S. R. Kulkarni , R. Wijnands

We report on the discovery by the Swift Gamma-Ray Burst Explorer of the black hole candidate Swift J1539.2-6227 and the subsequent course of an outburst beginning in November 2008 and lasting at least seven months. The source was discovered…

高能天体物理现象 · 物理学 2015-05-28 H. A. Krimm , J. A. Tomsick , C. B. Markwardt , C. Brocksopp , F. Grise , P. Kaaret , P. Romano

The LMXB NS GS 1826-238 was discovered by Ginga in 1988 September. Due to the presence of quasi-periodicity in the type I X-ray burst rate, the source has been a frequent target of X-ray observations for almost 30 years. Though the bursts…

高能天体物理现象 · 物理学 2016-02-03 James Rodi , Elisabeth Jourdain , Jean-Pierre Roques

A new accreting millisecond X-ray pulsar, IGR J17511-3057, was discovered in outburst on 2009 September 12 during the INTEGRAL Galactic bulge monitoring programme. To study the evolution of the source X-ray flux and spectral properties…

高能天体物理现象 · 物理学 2015-05-14 E. Bozzo , C. Ferrigno , M. Falanga , S. Campana , J. A. Kennea , A. Papitto

We report the findings of a uGMRT observing campaign on FRB 180916.J0158+65, discovered recently to show a 16.35-day periodicity of its active cycle. We observed the source at 550-750 MHz for $\sim 2$ hours each during three successive…

高能天体物理现象 · 物理学 2020-09-29 Visweshwar Ram Marthi , Tasha Gautam , Dongzi Li , Hsiu-Hsien Lin , Robert Main , Arun Kumar Naidu , Ue-Li Pen , Robert Wharton

We present the results from RXTE observations of a new X-ray transient, GRS 1737-31, near the Galactic center during an outburst. Over a span of two weeks, the source was seen to vary significantly on time scales down to a few seconds. The…

天体物理学 · 物理学 2009-10-30 Wei Cui , W. A. Heindl , J. H. Swank , D. M. Smith , E. H. Morgan , R~. Remillard , F. E. Marshall