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Related papers: The first radius-expansion X-ray burst from GX 3+1

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We present a detailed observational and theoretical study of a ~3 hr long X-ray burst (the ``super burst'') observed by the Rossi X-ray Timing Explorer (RXTE) from the low mass X-ray binary (LMXB) 4U 1820-30. This is the longest X-ray burst…

Astrophysics · Physics 2009-11-07 Tod E. Strohmayer , Edward F. Brown

We use archival data from the Rossi X-Ray Timing Explorer to examine 125 type I X-ray bursts from the 9 weakly magnetic accreting neutron stars where millisecond oscillations have been detected during some bursts. We find that oscillations…

Astrophysics · Physics 2016-08-30 Michael P. Muno , Deepto Chakrabarty , Duncan K. Galloway , Pavlin Savov

GS 0836-429 is a neutron star X-ray transient that displays Type-I X-ray bursts. In 2003 and 2004 it experienced two outbursts in X-rays. We present here an analysis of the system bursting properties during these outbursts. We studied the…

High Energy Astrophysical Phenomena · Physics 2016-02-10 E. Aranzana , C. Sánchez-Fernández , E. Kuulkers

The majority of X-ray burst sources do not display a burst rate that increases with luminosity as expected, but this is seen in the two clocked bursters XB1323-619 and GS1826-24. We present a detailed investigation of these two sources…

Astrophysics · Physics 2007-10-23 M. Balucinska-Church , D. Reed , M. J. Church

The X-ray source RX J004717.4-251811 in the nearby starburst galaxy NGC 253 was found to undergo changes from a low to a high state twice, during an XMM-Newton EPIC observation in December 2000 and also during a Chandra observation one year…

Astrophysics · Physics 2009-11-07 W. Pietsch , F. Haberl , A. Vogler

Type-I X-ray bursts are thermonuclear explosions occurring in the surface layers of accreting neutron stars. These events are powerful probes of the physics of neutron stars and their surrounding accretion flow. We analyze a very energetic…

High Energy Astrophysical Phenomena · Physics 2015-06-12 N. Degenaar , J. M. Miller , R. Wijnands , D. Altamirano , A. C. Fabian

We study the spectral and temporal properties of three Type I X-ray bursts observed from Cyg X-2 with the Rossi X-ray Timing Explorer. Despite the short time durations (~ 5 sec) these bursts show radial expansion of order of several neutron…

Astrophysics · Physics 2009-11-07 Lev Titarchuk , Nickolai Shaposhnikov

In this paper we present the observations performed by the BeppoSAX Gamma-Ray Burst Monitor (GRBM) and Wide Field Cameras (WFC) of GB960720. We derive a precise localization (3 arcmin radius) and fast broad band (2-700 keV) spectral…

On August 24th 2008 the new magnetar SGR 0501+4516 (discovered by SWIFT) emitted a bright burst with a pronounced double-peak structure in hard X-rays, reminiscent of the double-peak temporal structure seen in some bright thermonuclear…

We observed the Rapid Burster with Chandra when it was in the 'banana' state that usually precedes the type-II X-ray bursting 'island' state for which the source is particularly known. We employed the High-Energy Transmission Grating…

High Energy Astrophysical Phenomena · Physics 2017-03-22 J. J. M. in 't Zand , T. Bagnoli , C. D'Angelo , A. Patruno , D. K. Galloway , M. B. M. van der Klis , A. L. Watts , H. L. Marshall

Thermal emission during X-ray bursts is a powerful tool to determine neutron star masses and radii, if the Eddington flux and the apparent radius in the cooling tail can be measured accurately, and distances to the sources are known. We…

High Energy Astrophysical Phenomena · Physics 2015-03-17 Valery Suleimanov , Juri Poutanen , Mikhail Revnivtsev , Klaus Werner

We report on the \nustar{} observation of the atoll type neutron star (NS) low-mass X-ray binary GX~3+1 performed on 17 October 2017. The source was found in a soft X-ray spectral state with $3-70$keV luminosity of $L_\text{X}\sim3\times…

High Energy Astrophysical Phenomena · Physics 2019-06-17 Aditya S. Mondal , G. C. Dewangan , B. Raychaudhuri

We report the detection during the JEM-X/INTEGRAL observations of several X-ray bursters of series of close type I X-ray bursts consisting of two or three events with a recurrence time much shorter than the characteristic (at the observed…

High Energy Astrophysical Phenomena · Physics 2017-08-24 S. A. Grebenev , I. V. Chelovekov

Scattering by interstellar dust grains can produce time variable X-ray halos around gamma-ray bursts (GRB). In particular, an X-ray expanding ring is expected when a short pulse of X-ray radiation is scattered by a narrow layer of dust in…

Astrophysics · Physics 2009-11-11 Andrea Tiengo , Sandro Mereghetti

Thermonuclear X-ray bursts on the surface of neutron stars (NSs) can enrich photosphere with metals, which may imprint the photoionization edges on the burst spectra. We report here the discovery of absorption edges in the spectra of the…

High Energy Astrophysical Phenomena · Physics 2018-10-15 Zhaosheng Li , Valery F. Suleimanov , Juri Poutanen , Tuomo Salmi , Maurizio Falanga , Joonas Nättilä , Renxin Xu

The light curves of GRS 1915+105 observed with RXTE on October 15, 1996 reveal a wide range of transient activity including regular bursts with a recurrence time of about 1 minute, irregular bursts, and dips. In contrast to bursts from…

Astrophysics · Physics 2009-10-30 Ronald E. Taam , Xingming Chen , Jean H. Swank

We report the discovery of Type I (thermonuclear) X-ray bursts from the transient source XMMU J181227.8-181234 = XTE J1812-182. We found 7 X-ray bursts in Rossi X-ray Timing Explorer observations during the 2008 outburst, confirming the…

High Energy Astrophysical Phenomena · Physics 2019-05-01 A. J. Goodwin , D. K. Galloway , J. J. M. in 't Zand , E. Kuulkers , A. Bilous , L. Keek

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 results of the RXTE observations of an extremely intense X-ray burst detected from the source 4U1724-307 in the globular cluster Terzan 2. The burst profile was complex consisting of two precursors and a long primary peak. During…

Astrophysics · Physics 2007-05-23 S. V. Molkov , S. A. Grebenev , A. A. Lutovinov

The neutron star low-mass X-ray binary, EXO 0748--676, recently returned to outburst after a $\sim$ 16 year-long quiescence. Since its return, there has been a global effort to capture the previously unseen rise of the source and to…

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