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The XMM-Newton serendipitous survey. V. The Second XMM-Newton serendipitous source catalogue
Aims. Pointed observations with XMM-Newton provide the basis for creating catalogues of X-ray sources detected serendipitously in each field. This paper describes the creation and characteristics of
The XMM-Newton serendipitous survey - VII. The third XMM-Newton serendipitous source catalogue
© ESO, 2016.Context. Thanks to the large collecting area (3 × ∼1500 cm2 at 1.5 keV) and wide field of view (30′ across in full field mode) of the X-ray cameras on board the European Space Agency
A mass of less than 15 solar masses for the black hole in an ultraluminous X-ray source
The results demonstrate that in P13, soft thermal emission and spectral curvature are indeed signatures of supercritical accretion, and by analogy, ultraluminousX-ray sources with similar X-ray spectra and luminosities can be explained by super critical accretion onto massive stellar-mass black holes.
The Optical Light Curve of the Low-Mass X-Ray Binary XB 1254-690
The discovery of periodic optical variations from the counterpart of the low-mass X-ray binary XB 1254-690 is reported. The period is 0.163890 + or - 0.000009 days, identical to the recurrence period
Detection of an X-ray-ionized nebula around the black hole candidate binary LMC X-l
Optical spectra of the black hole candidate X-ray binary LMC X-l reveal that the system is surrounded by an extended, highly ionized He III region, N159F, which appears to be the long-sought-for
The Discovery of 3.9 Hour Periodic Dips in the X-Ray Intensity of XB 1254-690
The low-mass X-ray binary XB 1254 - 690 has been discovered to show irregular dips in X-ray intensity that recur with a period of 3.9 hr consistent with the optical period derived independently. The
The ultraluminous X-ray source NGC 1313 X-2. Its optical counterpart and environment
NGC 1313 X-2 is one of the brightest ultraluminous X-ray sources in the sky, at both X-ray and optical wavelengths; therefore, quite a few studies of available ESO VLT and HST data have appeared in
Identification of selected sources from the ROSAT Galactic Plane Survey. I.
We report on optical searches in the error circles of 93 ROSAT survey sources located at low galactic latitudes ( H . This relatively good segregation offers the possibility to build source samples
Probable intermediate-mass black holes in NGC 4559: XMM–Newton spectral and timing constraints
We have examined X-ray and optical observations of two ultraluminous X-ray sources, X7 and X10 in NGC 4559, using XMM-Newton, Chandra and the Hubble Space Telescope (HST). The ultraviolet/X-ray
Identification of a Complete Sample of Northern ROSAT All-Sky Survey X-Ray Sources. III. The Catalog
We present a catalog of optical identifications of a representative sample of northern (δ > -9°) ROSAT All-Sky Survey (RASS) sources. A full identification has been carried out for a count-rate- and