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相关论文: High-Resolution X-Ray Spectroscopy of the Bursting…

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The bursting pulsar, GRO J1744-28, went again in outburst after $\sim$18 years of quiescence in mid-January 2014. We studied the broad-band, persistent, X-ray spectrum using X-ray data from a XMM-Newton observation, performed almost at the…

高能天体物理现象 · 物理学 2015-06-24 A. D'Aì , T. Di Salvo , R. Iaria , J. A. García , A. Sanna , F. Pintore , A. Riggio , L. Burderi , E. Bozzo , T. Dauser , M. Matranga , C. G. Galiano , N. R. Robba

The unusual properties of the bursting X-ray pulsar GRO J1744-28 are explained in terms of a low-mass X-ray binary system consisting of an evolved stellar companion transferring mass through Roche-lobe overflow onto a neutron star, implying…

天体物理学 · 物理学 2009-10-28 Steven J. Sturner , Charles D. Dermer

We argue that the bursting, transient X-ray source GRO J1744-28 is a binary consisting of a very low-mass ($M \approx 0.2 M_\sun$), highly evolved giant star that is transferring mass by Roche lobe overflow onto a high-mass ($M \approx 1.8…

天体物理学 · 物理学 2007-05-23 D. Q. Lamb , M. Coleman Miller , R. E. Taam

The X-ray pulsar GRO J1744-28 is a unique source which shows both pulsations and type-II X-ray bursts, allowing studies of the interaction of the accretion disk with the magnetosphere at huge mass accretion rates exceeding $10^{19}$ g…

We present an analysis of BeppoSAX observations of the unique transient bursting X-ray pulsar GRO J1744-28. The observations took place in March 1997 during the decay phase of the outburst. We find that the persistent broadband X-ray…

高能天体物理现象 · 物理学 2015-04-01 R. Doroshenko , A. Santangelo , V. Doroshenko , V. Suleimanov , S. Piraino

We report on the deep observations of the "bursting pulsar" GRO J1744-28, which were performed with XMM-Newton and aimed to clarify the origin of its X-ray emission in quiescence. We detect the source at a luminosity level of $\sim10^{34}$…

高能天体物理现象 · 物理学 2020-09-29 Victor Doroshenko , Valery Suleimanov , Sergey Tsygankov , Juhani Mönkkönen , Long Ji , Andrea Santangelo

1RXS J180408.9-342058 is a transient neutron star low-mass X-ray binary that exhibited a bright accretion outburst in 2015. We present Nustar, Swift, and Chandra observations obtained around the peak of this outburst. The source was in a…

GRO J1744-28, commonly known as the `Bursting Pulsar', is a low mass X-ray binary containing a neutron star and an evolved giant star. This system, together with the Rapid Burster (MXB 1730-33), are the only two systems that display the…

高能天体物理现象 · 物理学 2018-09-05 J. M. C. Court , D. Altamirano , A. C. Albayati , A. Sanna , T. Belloni , T. Overton , N. Degenaar , R. Wijnands , K. Yamaoka , A. B. Hill , C. Knigge

We report on a 10 ks simultaneous Chandra/HETG-NuSTAR observation of the Bursting Pulsar, GRO J1744-28, during its third detected outburst since discovery and after nearly 18 years of quiescence. The source is detected up to 60 keV with an…

GRO J1744-28 (the Bursting Pulsar) is a neutron star LMXB which shows highly structured X-ray variability near the end of its X-ray outbursts. In this letter we show that this variability is analogous to that seen in Transitional…

高能天体物理现象 · 物理学 2018-05-16 James Court , Diego Altamirano , Andrea Sanna

The Be X-ray binary GRO J2058+42 recently went through a Type-II outburst during March-April 2019 lasting for about 50 days. This outburst was detected with the operating all sky X-ray monitors like the Fermi-GBM, Swift-BAT and MAXI-GSC.…

高能天体物理现象 · 物理学 2020-07-22 Sanhita Kabiraj , Biswajit Paul

IGR J17591-2342 is an accreting millisecond X-ray pulsar discovered in 2018 August in scans of the Galactic bulge and center by the INTEGRAL X-ray and gamma-ray observatory. It exhibited an unusual outburst profile with multiple peaks in…

Using VLT/ISAAC, we detected 2 candidate counterparts to the bursting pulsar GRO J1744-28, one bright and one faint, within the X-ray error circles of XMM-Newton and Chandra. In determining the spectral types of the counterparts we applied…

天体物理学 · 物理学 2019-08-15 Andrew J. Gosling , Reba M. Bandyopadhyay , James C. A. Miller-Jones , S. A. Farrell

Accretion disk winds are revealed in Chandra gratings spectra of black holes. The winds are hot and highly ionized (typically composed of He-like and H-like charge states), and show modest blue-shifts. Similar line spectra are sometimes…

高能天体物理现象 · 物理学 2015-05-27 Jon M. Miller , Dipankar Maitra , Edward M. Cackett , Sudip Bhattacharyya , Tod E. Strohmayer

We report on the broadband spectral and timing properties of the accreting millisecond X-ray pulsar IGR J17498$-$2921 during its April 2023 outburst using data from NICER (1$-$10 keV), NuSTAR (3$-$79 keV), Insight-HXMT (2$-$150 keV), and…

高能天体物理现象 · 物理学 2024-11-06 Zhaosheng Li , L. Kuiper , Y. Y. Pan , M. Falanga , J. Poutanen , Y. P. Chen , R. X. Xu , M. Y. Ge , Y. Huang , L. M. Song , S. Zhang , F. J. Lu , S. N. Zhang

We present a Chandra/ACIS-I observation of GRO J1744-28. We detected a source at a position of R.A = 17h 44m 33.09s and Dec. = -28degr 44' 27.0'' (J2000.0; with a 1sigma error of ~0.8 arcseconds), consistent with both ROSAT and…

天体物理学 · 物理学 2009-11-07 Rudy Wijnands , Q. Daniel Wang

We investigate the thermal stability of nuclear burning on the accreting X-ray pulsar GRO J1744-28. The neutron star's dipolar magnetic field is <3\times 10^{11} G if persistent spin-up implies that the magnetospheric radius is less than…

天体物理学 · 物理学 2009-10-28 Lars Bildsten , Edward F. Brown

We present a comprehensive X-ray study of the neutron star low-mass X-ray binary IGR J17062-6143, which has been accreting at low luminosities since its discovery in $2006$. Analysing NuSTAR, XMM-Newton and Swift observations, we…

We analyzed RXTE/PCA observations of the bursting pulsar GRO J1744-28 during its two outbursts in 1995-1997. We have found a significant transition, i.e., a sharp change, of both spectral and timing properties around a flux of $\rm 10^{-8}\…

The timing properties of the 4.45 s pulsar in the Be X-ray binary system GRO J1750-27 are examined using hard X-ray data from INTEGRAL and Swift during a Type II outburst observed during 2008. The orbital parameters of the system are…

天体物理学 · 物理学 2012-11-27 S. E. Shaw , A. B. Hill , E. Kuulkers , S. Brandt , J. Chenevez , P. Kretschmar
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