211 datasets found

Keywords: X ray binary stars

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  • Catalogue of X-ray binaries

    We present a catalogue of high-mass X-ray binaries. The catalogue is an updated version of the catalogue of van Paradijs (1995, Cat. ). The new high-mass catalogue contains 130...
  • X-ray binary A0535+26/V725 Tau UBV photometry

    New photoelectric UBV observations of the X-ray binary A0535+26 at the Crimea station of the Sternberg Astronomical Institute in 1998-2003.
  • Variability of Cyg X-1 (V1357) in 1995-1996

    Photoelectric UBVR photometry of Cyg X-1 with 1-m Tian'-Shan' and 48-cm Maidanak Observatory reflectors from October 1995 through November 1996 are presented.
  • Observations of X-ray binary A0535+26/V725 Tau

    UBV photoelectric observations of A0535+26/V725 Tau are obtained at Crimean Station of SAI in 1980 and 1988-1998.
  • BVR observations of SS 433

    Photoelectric BVR photometry of SS 433 performed between 1988 and 1990 at Mt. Maidanak is presented.
  • Chandra compact binaries in 47 Tuc

    We have obtained high-resolution (<~1") deep X-ray images of the globular cluster 47 Tucanae (NGC 104) with the Chandra X-ray Observatory to study the population of compact...
  • SS 433 UBVRI light curves

    After 33 years of extensive studies of SS 433, we have learnt much about this unique system with moving emission lines in the spectrum. The orbital inclination is known from...
  • Cyg X-1 JK light curves

    We present the results of our long-term (13 years) J and K photometry of the X-ray binary Cyg X-1. The object's JK variability amplitudes were less than 0.2mag. The J and K...
  • Distances of X-ray binaries

    The X-ray luminosity functions of galaxies have become a useful tool for population studies of X-ray binaries in them. The availability of long term light-curves of X-ray...
  • eUDS, SRG/eROSITA X-ray Survey of UKIDSS UDS

    The eROSITA X-ray telescope on board the Spectrum-Roentgen-Gamma (SRG) spacecraft observed the field of the UKIDSS Ultra-Deep Survey (UDS) in August-September 2019, during its...
  • QPOs in the 2021 outburst of GX 339-4

    We investigated the snapshots of five NICER observations of the black hole transient GX 339-4 when the source transited from the hard state into the soft state during its...
  • The Swift Bulge Survey. first X-ray results

    Very faint X-ray transients (VFXTs) are X-ray transients with peak X-ray luminosities (L_X_) of L_X_~<10^36^erg/s, which are not well understood. We carried out a survey of...
  • Black hole mass accretion rates for over 750 AGN

    Mass accretion rates in dimensionless and physical units, and efficiency factors describing the total radiant luminosity of the disc and the beam power of the outflow are...
  • Polarization of LMXB MAXI J1820+070

    We describe the first complete polarimetric dataset of the entire outburst of a low-mass black hole X-ray binary system and discuss the constraints for geometry and radiative...
  • Radio astrometry of MAXI J1820+070

    Using the Very Long Baseline Array and the European Very Long Baseline Interferometry Network, we have made a precise measurement of the radio parallax of the black hole X-ray...
  • Effects of metallicity on HMXB formation

    The heating of the intergalactic medium in the early, metal-poor Universe may have been partly due to radiation from high-mass X-ray binaries (HMXBs). Previous investigations on...
  • Phase diff. between QPO harmonics in BHXRB

    We perform a systematic study of the evolution of the waveform of black hole X-ray binary low-frequency QPOs, by measuring the phase difference between their fundamental and...
  • Sub-galactic X-ray scaling relations

    We present results from Chandra observations of the X-ray starburst galaxies NGC3310 and NGC2276. We detect 27 discrete sources in NGC3310, and 19 discrete sources in NGC2276...
  • Non-nuclear X-ray sources in nearby galaxies

    We have created a new, clean catalogue of extragalactic non-nuclear X-ray sources by correlating the 3XMM-DR4 data release of the XMM-Newton Serendipitous Source Catalogue with...
  • Transient black hole X-ray binaries XMM obs.

    All observations of Galactic X-ray binaries are affected by absorption from gas and dust in the interstellar medium (ISM) which imprints narrow (line) and broad (photoelectric...
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