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相关论文: Discovery of an X-ray pulsar in the low-mass X-ray…

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The low mass X-ray binary 2A 1822-371 is an eclipsing system with an accretion disc corona and with an orbital period of 5.57 hr. The primary is an 0.59 s X-ray pulsar with a proposed strong magnetic field of 10^10-10^12 G. In this paper we…

高能天体物理现象 · 物理学 2017-04-12 A. Bak Nielsen , A. Patruno , C. D'Angelo

We discovered 2.8 s pulsations in the X-ray emission of the ultraluminous X-ray source (ULX) M51 ULX-7 within the UNSEeN project, which was designed to hunt for new pulsating ULXs (PULXs) with XMM-Newton. The pulse shape is sinusoidal and…

We report the detection of 376.05 Hz (2.66 ms) coherent X-ray pulsations in NICER observations of a transient outburst of the low-mass X-ray binary IGR J17494-3030 in 2020 October/November. The system is an accreting millisecond X-ray…

We report the discovery with XMM-Newton of 3-s X-ray pulsations from 3XMM J004232.1+411314, a dipping source that dominates the hard X-ray emission of M31. This finding unambiguously assesses the neutron star (NS) nature of the compact…

We have identified the third known accretion-powered millisecond pulsar, XTE J0929-314, with the Rossi X-Ray Timing Explorer. The source is a faint, high-Galactic-latitude X-ray transient (d >~ 5 kpc) that was in outburst during 2002…

天体物理学 · 物理学 2009-11-07 Duncan Galloway , Deepto Chakrabarty , Edward Morgan , Ronald Remillard

We present the discovery of 528.6 Hz pulsations in the new X-ray transient MAXI J1816-195. Using NICER, we observed the first recorded transient outburst from the neutron star low-mass X-ray binary MAXI J1816-195 over a period of 28 days.…

We report our measurements for orbital and spin parameters of X 1822-371 using its X-ray partial eclipsing profile and pulsar timing from data collected by the Rossi X-ray Timing Explorer (RXTE). Four more X-ray eclipse times obtained by…

高能天体物理现象 · 物理学 2016-08-16 Yi Chou , Hung-En Hsieh , Chin-Ping Hu , Ting-Chang Yang , Yi-Hao Su

Pulsations from the high mass X-ray binary AXJ1910.7+0917 were discovered during Chandra observations performed in 2011 (Israel et al. 2016). We report here more details on this discovery and discuss the source nature. The period of the…

高能天体物理现象 · 物理学 2017-06-21 L. Sidoli , G. L. Israel , P. Esposito , G. A. Rodriguez Castillo , K. Postnov

We report on the discovery of X-ray pulsations in the Be/X-ray binary IGR J21343+4738 during an XMM-Newton observation. We obtained a barycentric corrected pulse period of 320.35+-0.06 seconds. The pulse profile displays a peak at low…

高能天体物理现象 · 物理学 2015-06-19 P. Reig , A. Zezas

We report on observations of the sixth accretion-powered millisecond pulsar, IGR J00291+5934, with the Rossi X-Ray Timing Explorer. The source is a faint, recurrent X-ray transient initially identified by INTEGRAL. The 599 Hz (1.67 ms)…

天体物理学 · 物理学 2009-11-10 D. K. Galloway , C. B. Markwardt , E. H. Morgan , D. Chakrabarty , T. E. Strohmayer

We report on the discovery of X-ray pulsations from the Be/X-ray system LS 992/RX J0812.4-3114 during an RXTE observation. From a timing analysis of the source we obtained a barycentric pulse period of 31.8851 \pm 0.0004 s. The pulse…

天体物理学 · 物理学 2009-10-31 Pablo Reig , Paul Roche

Millisecond X-ray pulsars consist of a rapidly-spinning neutron star accreting from a low-mass stellar companion, and are the long-sought evolutionary progenitors of millisecond radio pulsars, as well as promising candidate sources for…

天体物理学 · 物理学 2007-05-23 Duncan K Galloway

The relativistic double neutron star binary PSR J0737-3039 shows clear evidence of orbital phase-dependent wind-companion interaction, both in radio and X-rays. In this paper we present the results of timing analysis of PSR J0737-3039…

高能天体物理现象 · 物理学 2016-06-22 M. N. Iacolina , A. Pellizzoni , E. Egron , A. Possenti , R. Breton , M. Lyutikov , M. Kramer , M. Burgay , S. E. Motta , A. De Luca , A. Tiengo

We report on the phase-coherent timing analysis of the accreting millisecond X-ray pulsar IGR J17591-2342, using Neutron Star Interior Composition Explorer (NICER) data taken during the outburst of the source between 2018 August 15 and 2018…

高能天体物理现象 · 物理学 2020-05-13 A. Sanna , L. Burderi , K. C. Gendreau , T. Di Salvo , P. S. Ray , A. Riggio , A. F. Gambino , R. Iaria , L. Piga , C. Malacaria , G. K. Jaisawal

We describe observations of the 2003 outburst of the hard-spectrum X-ray transient 4U 1901+03 with the Rossi X-ray Timing Explorer. The outburst was first detected in 2003 February by the All-Sky Monitor, and reached a peak 2.5-25 keV flux…

天体物理学 · 物理学 2009-11-11 Duncan K. Galloway , Zhongxiang Wang , Edward H. Morgan

AX J1845-0258 is a transient X-ray pulsar, with spin period of 6.97s, discovered with the ASCA satellite in 1993. Its soft spectrum and the possible association with a supernova remnant suggest that AX J1845-0258 might be a magnetar, but…

高能天体物理现象 · 物理学 2016-06-08 Fabio Pintore , Sandro Mereghetti

We report the results of an analysis of data obtained with the INTEGRAL, Swift and RXTE observatories during the 2010 April and September outbursts of the X-ray pulsar RX J0440.9+4431. The temporal and spectral properties of the pulsar in a…

高能天体物理现象 · 物理学 2015-06-03 S. Tsygankov , R. Krivonos , A. Lutovinov

We analyze all X-ray timing data on 1E 1207.4-5209 in supernova remnant PKS 1209-51/52 gathered in 2000-2005, and find a highly stable rotation with P=424.130451(4) ms and period derivative of (9.6 +/- 9.4)E-17 s/s. This refutes previous…

天体物理学 · 物理学 2009-11-13 E. V. Gotthelf , J. P. Halpern

We report the discovery of millisecond pulsations from the low-mass X-ray binary HETE J1900.1-2455 which was discovered by the detection of a type I X-ray burst by the High Energy Transient Explorer 2 (HETE-2). The neutron star emits…

天体物理学 · 物理学 2009-11-13 P. Kaaret , E. H. Morgan , R. Vanderspek , J. A. Tomsick

As a result of recent observations with ROSAT and ASCA the number of rotation-powered pulsars seen at X-ray energies has increased substantially. In this paper we review the phenomenology of the observed X-ray emission properties. At…

天体物理学 · 物理学 2016-08-30 W. Becker , J. Trümper
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