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Her X-1 is an accreting neutron star in an intermediate-mass X-ray binary. Like low-mass X-ray binaries (LMXBs), it accretes via Roche-lobe overflow, but similar to many high-mass X-ray binaries containing a neutron star, Her X-1 has a…

高能天体物理现象 · 物理学 2017-12-20 J. van den Eijnden , N. Degenaar , T. D. Russell , J. C. A. Miller-Jones , R. Wijnands , J. M. Miller , A. L. King , M. P. Rupen

We have compiled and analysed reports from the literature of (quasi-)simultaneous observations of X-ray transients at radio and X-ray wavelengths and compared them with each other and with more unusual radio-bright sources such as Cygnus…

天体物理学 · 物理学 2009-11-06 R. P. Fender , E. Kuulkers

Binary systems that harbor a non-accreting pulsar are efficient non-thermal emitters, from radio to gamma rays. This broadband emission is thought to come from the region where the companion star and pulsar winds collide. A paradigmatic…

高能天体物理现象 · 物理学 2015-03-19 V. Bosch-Ramon

X-ray binaries are binary star systems in which a compact object (a neutron star or a black hole) and a relatively normal star orbit a common centre of mass. Since the discovery of X-ray binaries with the first X-ray telescopes in the…

天体物理学 · 物理学 2008-02-07 David Russell

X-ray binaries are composed of a normal star in orbit around a neutron star or stellar-mass black hole. Radio and X-ray observations have led to the presumption that some X-ray binaries called microquasars behave as scaled down active…

天体物理学 · 物理学 2012-08-27 H. E. S. S. Collaboration , : , F. Aharonian

We summarise all the reported detections of, and upper limits to, the radio emission from persistent (i.e. non-transient) X-ray binaries. A striking result is a common mean observed radio luminosity from the black hole candidates (BHCs) in…

天体物理学 · 物理学 2009-10-31 R. P. Fender , M. A. Hendry

We report the discovery of radio emission from the accreting X-ray pulsar and symbiotic X-ray binary GX 1+4 with the Karl G. Jansky Very Large Array. This is the first radio detection of such a system, wherein a strongly magnetized neutron…

高能天体物理现象 · 物理学 2018-01-24 J. van den Eijnden , N. Degenaar , T. D. Russell , J. C. A. Miller-Jones , R. Wijnands , J. M. Miller , A. L. King , M. P. Rupen

We report new radio observations of a sample of thirty-six neutron star (NS) X-ray binaries, more than doubling the sample in the literature observed at current-day sensitivities. These sources include thirteen weakly-magnetised…

Spitzer observations of the neutron star (ultra-compact) X-ray binary (XRB) 4U 0614+091 with the Infrared Array Camera reveal emission of non-thermal origin in the range 3.5-8 um. The mid-infrared spectrum is well fit by a power law with…

天体物理学 · 物理学 2009-11-11 S. Migliari , J. A. Tomsick , T. J. Maccarone , E. Gallo , R. P. Fender , G. Nelemans , D. M. Russell

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

Quiescent black hole X-ray binaries (X-ray luminosities <1e34 erg/s) are believed to be fed by hot accretion flows that launch compact, relativistic jets. However, due to their low luminosities, quiescent jets have been detected in the…

高能天体物理现象 · 物理学 2021-03-17 R. M. Plotkin , A. Bahramian , J. C. A. Miller-Jones , M. T. Reynolds , P. Atri , T. J. Maccarone , A. W. Shaw , P. Gandhi

The conditions under which accreting neutron stars launch radio-emitting jets and/or outflows are still poorly understood. The ultracompact X-ray binary X1850--087, located in the globular cluster NGC 6712, is a persistent atoll-type X-ray…

We present results from a deep search for radio emission from the X-ray pulsar systems GX 1+4, GS 0834-430 and 4U 0115+63 which have variously been suggested to possess radio jets and to be good candidates for propellor ejection mechanisms.…

天体物理学 · 物理学 2016-08-30 R. P. Fender , P. Roche , G. G. Pooley , D. Chakrabarty , A. K. Tzioumis , M. A. Hendry , R. E. Spencer

Strongly-magnetized ($B\geq10^{12}$ G) accreting neutron stars (NSs) are prime targets for studying the launching of jets by objects with a solid surface; while classical jet-launching models predict that such NSs cannot launch jets, recent…

When the matter from a companion star is accreted towards the central compact accretor, i.e. a black hole (BH) or a neutron star (NS), an accretion disc and a jet outflow will form, providing bight X-ray and radio emission, which is known…

高能天体物理现象 · 物理学 2023-03-21 Pei-Xin Shen , Wei-Min Gu

I review some of the basic observational details of jets from X-ray binaries, or `microquasars'. It is shown that in both (Z and Atoll) NS and BHC systems radio emission, and therefore jet formation, is correlated with the presence of hard…

天体物理学 · 物理学 2009-11-06 Rob Fender

PSR B1259-63 is a 48 ms radio pulsar in a highly eccentric 3.4 year orbit with a Be star SS 2883. Unpulsed gamma-ray, X-ray and radio emission components are observed from the binary system. It is likely that the collision of the pulsar…

星系天体物理 · 物理学 2015-05-13 M. Chernyakova , A. Neronov , F. Aharonian , Y. Uchiyama , T. Takahashi

Symbiotic stars are a heterogeneous class of interacting binaries. Among them, RT Cru has been classified as prototype of a subclass that is characterised by hard X-ray spectra extending past ~20 keV. We analyse ~8.6 Ms of archival INTEGRAL…

高能天体物理现象 · 物理学 2016-08-03 L. Ducci , V. Doroshenko , V. Suleimanov , M. Nikolajuk , A. Santangelo , C. Ferrigno

This paper reports Giant Metrewave Radio Telescope (GMRT) observations of the binary system HD 41004 that are among the deepest images ever obtained at 150~MHz and 400 MHz in the search for radio emission from exoplanets. The HD 41004…

We report evidence of type-I X-ray bursting activity from the transient 1RXS J170930.2-263927 when it was in outburst early 1997. This identifies the source as a probable low-mass X-ray binary containing a neutron star. The error boxes of…

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