-
Cataclysmic Binaries, LMXBs, and related objects
Cataclysmic Binaries are semi-detached binaries consisting of a white dwarf or a white dwarf precursor primary and a low-mass secondary which is filling its critical Roche lobe.... -
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. -
Extragalactic X-ray binaries catalog
We construct a new catalog of extragalactic X-ray binaries (XRBs) by matching the latest Chandra source catalog with local galaxy catalogs. Our XRB catalog contains 4430 XRBs... -
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... -
ART-XC Galactic bulge survey point sources cat.
We present a catalog of point sources detected with the Mikhail Pavlinsky ART-XC telescope on board the SRG observatory during a wide-field survey of the Galactic Bulge that was... -
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... -
IR lines of AGNs accretion disk
Accretion states, which are universally observed in stellar mass black holes in X-ray binaries, might be expected in active galactic nuclei (AGN). This is the case at low... -
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... -
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... -
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...