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相关论文: Simultaneous radio/X-ray observations of Cir X-1

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We present observations of the neutron star X-ray binary and relativistic jet source Circinus X-1 made at 4.8 and 8.6 GHz with the Australia Telescope Compact Array during a time interval of almost 10 years. The system shows significant…

天体物理学 · 物理学 2009-11-13 V. Tudose , R. P. Fender , A. K. Tzioumis , R. E. Spencer , M. van der Klis

We analysed simultaneous X-ray/radio observations of Circinus X-1 collected respectively with RXTE and ATCA in 2000 October and 2002 December and identified radio flares close to phase 0.0 and 0.5 of the orbital period. To date, there is…

天体物理学 · 物理学 2009-06-23 Paolo Soleri , Valeriu Tudose , Rob Fender , Michiel van der Klis

We present the results of simultaneous X-ray and radio observations of the peculiar Z-type neutron star X-ray binary Cir X-1, observed with the Rossi X-ray timing explorer satellite and the Australia Telescope Compact Array in 2000 October…

高能天体物理现象 · 物理学 2015-05-13 Paolo Soleri , Valeriu Tudose , Rob Fender , Michiel van der Klis , Peter G. Jonker

We present the results of the analysis of two Chandra observations of Circinus X-1 performed in 2007, for a total exposure time of ~50 ks. The source was observed with the High Resolution Camera during a long X-ray low-flux state of the…

New radio observations of the radio-jet X-ray binary Circinus X-1 over nearly an entire 16.6-day orbit are presented. The source continues to undergo radio flaring in the phase interval 0.0 - 0.2 and appears to be brightening since…

天体物理学 · 物理学 2009-10-30 R. P. Fender

We present results from the first radio observations of a complete orbit (~ 17 days) of the neutron star X-ray binary Circinus X-1 using the Australia Telescope Compact Array Broadband Backend, taken while the system was in an historically…

高能天体物理现象 · 物理学 2015-05-30 D. E. Calvelo , R. P. Fender , A. K. Tzioumis , N. Kawai , J. W. Broderick , M. E. Bell

In observations with the Australia Telescope Compact Array we have resolved the radio counterpart of the unusual X-ray binary Cir X-1 into an asymmetric extended structure on arcsecond scales. In order to quantify the asymmetry we have…

We present new optical and infrared (IR) observations of Cir X-1 taken near apastron. Both sets of spectra show asymmetric emission lines. Archival optical observations show that an asymmetric H-alpha emission line has been in evidence for…

天体物理学 · 物理学 2009-10-31 Helen Johnston , Rob Fender , Kinwah Wu

The binary system, LSI+61 303, is unusual both because of the dramatic, periodic, radio outbursts, and because of its possible association with the 100 MeV gamma-ray source, 2CG135+01. We have performed simultaneous radio and Rossi X-ray…

天体物理学 · 物理学 2009-10-31 F. A. Harrison , P. S. Ray , D. A. Leahy , E. B. Waltman , G. G. Pooley

Cir X-1 is one of the most intriguing galactic X-ray sources. It is a ~16.6 days variable X/radio source, a type-I X-ray burster and a QPO emitter. In spite of an uncertain optical counterpart classification, all these properties identify…

天体物理学 · 物理学 2009-11-07 R. P. Mignani , A. De Luca , P. A. Caraveo , I. F. Mirabel

The 2009 November outburst of the neutron star X-ray binary Aquila X-1 was observed with unprecedented radio coverage and simultaneous pointed X-ray observations, tracing the radio emission around the full X-ray hysteresis loop of the…

The nearby accreting neutron star binary Sco X-1 is the closest example of ongoing relativistic jet production at high Eddington ratios. Previous radio studies have revealed that alongside mildly relativistic, radio-emitting ejecta, there…

高能天体物理现象 · 物理学 2018-12-19 S. E. Motta , R. P. Fender

Thanks to aggressive campaigns of multi-wavelength observations of X-ray binaries in outbursts over the last decade or so, we have now reached a reasonable understanding of their radio phenomenology in response to changes in the global…

天体物理学 · 物理学 2009-04-14 Elena Gallo

Aql X-1 is one of the best-studied neutron star low-mass X-ray binaries. It was previously targeted using quasi-simultaneous radio and X-ray observations during at least 7 different accretion outbursts. Such observations allow us to probe…

Ser X-1 is a low mass neutron star X-ray binary and has been persistently accreting since its discovery in the 1960s. It has always been observed to be in a soft spectral state and has never showed substantial long-term X-ray variability.…

The Neutron Star X-ray binary Sco X-1 is one of the brightest Z-type sources in our Galaxy, showing frequent periods of flaring activity and different types of relativistic outflows. Observations with RXTE have shown that the strongest…

高能天体物理现象 · 物理学 2025-09-17 J. López-Miralles , S. E. Motta , J. C. A. Miller-Jones , J. Homan , J. Kajava , S. Migliari

Here we report on joint X-ray and radio monitoring of the neutron star low-mass X-ray binary SAX J1810.8-2609. Our monitoring covered the entirety of its ~5 month outburst in 2021, revealing a temporal correlation between its radio and…

高能天体物理现象 · 物理学 2023-11-29 A. K. Hughes , G. R. Sivakoff , J. van den Eijnden , R. Fender , J. C. A. Miller-Jones , E. Tremou

The high-mass X-ray binary LS I +61{\deg}303 exhibits variability in its radio and X-ray emissions, ranging from minute to hour time-scales. At such short time-scales, not much is known about the possible correlations between these two…

高能天体物理现象 · 物理学 2020-12-09 R. Sharma , M. Massi , M. Chernyakova , D. Malyshev , Y. C. Perrott , A. Kraus , S. A. Dzib , F. Jaron , T. M. Cantwell

A large radio outburst from Sgr A* was observed during the VLA weekly monitoring program at 2 cm, 1.3 cm and 7 mm, nearly coincident with the brightest X-ray flare detected to date with the XMM-Newton X-ray Observatory on 2002-10-03. The…

天体物理学 · 物理学 2009-11-10 Jun-Hui Zhao , R. M. Herrnstein , G. C. Bower , W. M. Goss , S. M. Liu

Circinus X-1 is a neutron-star-accreting X-ray binary in a wide (P$_{\rm orb}$ = 16.6 d), eccentric orbit. After two years of relatively low X-ray luminosity, in May 2010 Circinus X-1 went into outburst, reaching 0.4 Crab flux. This…

高能天体物理现象 · 物理学 2015-06-04 A. D'Aì , E. Bozzo , A. Papitto , R. Iaria , T. Di Salvo , L. Burderi , A. Riggio , E. Egron , N. R. Robba
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