Low-mass X-ray binaries

Paradijs, J. van; Klis, M. van der

doi:10.1007/978-94-010-0320-9_34

Cited by 16 publications

(20 citation statements)

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“…UKIRT images of SLX 1735À269, 1E 1746.7À3224, and 4U 1812À12 did not reveal counterparts in the J band. Energy spectra for these five systems were generally consistent, with hard power laws (with photon index 1.5-2) typical for faint LMXBs (van der Klis 1994;van Paradijs & van der Klis 1994;Barret, McClintock, & Grindlay 1996 and references therein). Absorbed fluxes (1-10 keV) for the detected sources ranged ð2:1 89Þ Â 10 À11 ergs cm À2 s À1 .…”

Section: Discussionmentioning

confidence: 55%

ChandraObservations of the Faintest Low‐Mass X‐Ray Binaries

Wilson

Patel

Kouveliotou

et al. 2003

ApJ

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Section: Discussionmentioning

confidence: 55%

ChandraObservations of the Faintest Low‐Mass X‐Ray Binaries

Wilson

Patel

Kouveliotou

et al. 2003

ApJ

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“…Table 1 lists the 130 HMXBs. The format of the table is similar to that of the previous one (van Paradijs 1995) and the well-known work of Bradt & McClintock (1983), of which the present catalogue is meant to be an update. In the table the sources are ordered according to right ascension; part of the (mainly numerical) information on a source is arranged in seven columns, below which for each source additional information is provided in the form of key words with reference numbers [in square brackets].…”

Section: Introductionmentioning

confidence: 79%

“…We present a catalogue of high-mass X-ray binaries. The catalogue is an updated version of the catalogue of van Paradijs (1995). This new catalogue contains 130 sources, 61 new high-mass X-ray binaries in addition to the 69 sources listed in van Paradijs' catalogue.…”

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confidence: 99%

A catalogue of high-mass X-ray binaries

Liu

Paradijs

Heuvel

2000

Astron. Astrophys. Suppl. Ser.

195

204

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Abstract. We present a catalogue of high-mass X-ray binaries. The catalogue is an updated version of the catalogue of van Paradijs (1995). This new catalogue contains 130 sources, 61 new high-mass X-ray binaries in addition to the 69 sources listed in van Paradijs' catalogue. Most of the new sources are identified to be Be/X-ray binaries. Some sources, however, are only tentatively identified as high-mass X-ray binaries on the basis of a transient character and/or a hard X-ray spectrum. Further identification in other wavelength bands is needed to finally determine the features of these sources.The aim of this catalogue is to provide the reader with some basic information on the X-ray sources and their counterparts in other wavelength ranges (UV, optical, IR, radio). In cases where there is some doubt about the highmass nature of the X-ray binary this is mentioned. Some doubtful cases have not been included in the catalogue although they had been suggested by some authors to be high-mass X-ray binaries, for example GRS 1915+105 and 1WGA J1958.2+3232.

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“…This can dominate the spectrum at optical and UV wavelengths (van Paradijs & McClintock 1995;Gierliński, Done & Page 2009). The detection of stochastic variability superimposed on to the optical light curves of ULXs, most notably NGC 1313 X-2 (Grisé et al 2008;Liu, Bregman & McClintock 2009;Impiombato et al 2011), indicates that X-ray reprocessing is occurring in ULXs.…”

Section: Introductionmentioning

confidence: 99%

Irradiated, colour-temperature-corrected accretion discs in ultraluminous X-ray sources

Sutton¹,

Done²,

Roberts³

2014

Monthly Notices of the Royal Astronomical Society

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Although attempts have been made to constrain the stellar types of optical counterparts to ULXs, the detection of optical variability instead suggests that they may be dominated by reprocessed emission from X-rays which irradiate the outer accretion disc. Here, we report results from a combined X-ray and optical spectral study of a sample of ULXs, which were selected for having broadened disc-like X-ray spectra, and known optical counterparts. We simultaneously fit optical and X-ray data from ULXs with a new spectral model of emission from an irradiated, colour-temperaturecorrected accretion disc around a black hole, with a central Comptonising corona. We find that the ULXs require reprocessing fractions of ∼ 10 −3 , which is similar to sub-Eddington thermal dominant state BHBs, but less than has been reported for ULXs with soft ultraluminous X-ray spectra. We suggest that the reprocessing fraction may be due to the opposing effects of self-shielding in a geometrically thick super-critical accretion disc, and reflection from far above the central black hole by optically thin material ejected in a natal super-Eddington wind. Then, the higher reprocessing fractions reported for ULXs with wind-dominated X-ray spectra may be due to enhanced scattering onto the outer disc via the stronger wind in these objects. Alternatively, the accretion discs in these ULXs may not be particularly geometrically thick, rather they may be similar in this regard to the thermal dominant state BHBs.

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Low-mass X-ray binaries

Cited by 16 publications

References 100 publications

ChandraObservations of the Faintest Low‐Mass X‐Ray Binaries

ChandraObservations of the Faintest Low‐Mass X‐Ray Binaries

A catalogue of high-mass X-ray binaries

Irradiated, colour-temperature-corrected accretion discs in ultraluminous X-ray sources

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