234 datasets found

Keywords: x ray binary stars

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  • Low-mass helium white dwarfs evolutionary models

    A large number of extremely low-mass helium white dwarfs (ELM WDs) have been discovered in recent years. The majority of them are found in close binary systems suggesting they...
  • List of 1254 X-ray bursts

    When the upper layer of an accreting neutron star experiences a thermonuclear runaway of helium and hydrogen, it exhibits an X-ray burst of a few keV with a cool-down phase of...
  • Oxygen K-edge cross sections

    Interstellar dust permeates our Galaxy and plays an important role in many physical processes in the diffuse and dense regions of the interstellar medium (ISM). High-resolution...
  • Classification of Swift and XMM-Newton sources

    With the advent of very large X-ray surveys, an automated classification of X-ray sources becomes increasingly valuable. This work proposes a revisited naive Bayes...
  • 4XMM-DR9-HECATE-based ULX catalogue

    Ultraluminous X-ray sources (LX>1x10^39^erg/s, ULXs) are excellent probes for extreme accretion physics, star formation history in galaxies, and intermediate-mass black holes...
  • The eFEDS X-ray catalogs (V7.4)

    The eROSITA X-ray telescope onboard the Spectrum-Roentgen-Gamma (SRG) observatory combines a large field of view and a large collecting area in the energy range between ~0.2 and...
  • eFEDS counterparts to point-like sources

    Of the eROSITA/eFEDS sources (Brunner et al., 2022A&A...661A...1B, Cat. J/A+A/661/A1, Paper I), 24774 of 27369 have reliable counterparts (90.5%) in the main sample and 231...
  • eROSITA study of 47 Tuc globular cluster

    We present the results of the analysis of five observations of the globular cluster 47 Tucanae (47 Tuc) with eROSITA (extended Roentgen Survey with an Imaging Telescope Array)...
  • Contact binary variables X-ray emission within 1kpc

    The X-ray emission of contact binaries (EW-type) is an important facet of such systems. Thus, X-ray emitting EW-type binaries (EWXs) are ideal laboratories for studying the...
  • HMXBs in the Galaxy catalogue

    High-Mass X-ray Binaries (HMXBs) are a particular class of high-energy sources which require multi-wavelength observational efforts to be properly characterised. New...
  • XRBcats. Galactic LMXB Catalogue

    We present a new catalogue of low-mass X-ray binaries (LMXBs) in the Galaxy. The catalogue contains source names, coordinates, source types, fluxes, distances, system...
  • Galactic High Mass X-ray Binary catalogue

    We present a new catalogue of high mass X-ray binaries (HMXBs) in the Galaxy, improving upon the most recent of such catalogues. We include new HMXBs discovered since previous...
  • UltraCompCAT catalog

    Ultracompact X-ray binaries (UCXBs) are a distinctive but elusive family of low-mass X-ray binaries (LMXBs) characterised by their tight orbits and degenerate donor stars. Here...
  • Spectro-photometry of 1A 0535+262

    1A 0535+262 is a high-mass X-ray binary that went into a giant X-ray outburst in 2020. During this event, the X-ray luminosity reached the highest value measured over the last...
  • Fe equivalent widths of BHLMXBs

    The presence of blueshifted absorption lines in the X-ray spectra of black hole low-mass X-ray binaries is the telltale mark of massive outflows called winds. These signatures...
  • Chandra, XMM-Newton and Swift-XRT ULX and HLX

    Ultraluminous and hyperluminous X-ray (ULX and HLX) sources could constitute interesting laboratories to further improve our understanding of the supermassive black hole growth...
  • Galactic LMXBs catalog

    Low-mass X-ray binaries (LMXBs) are high-energy sources that require multi-wavelength follow-up campaigns to be fully characterised. New transients associated with LMXBs are...
  • Current and secular accretion rates of EX Hya

    We report an observed accretion rate of dM/dt_1_=(3.86+/-0.60)x10^-11^M_{sun}/yr for the white dwarf in the short-period, intermediate polar EX Hya. This result is based upon...
  • CV eROSITA-enhanced multi-wavelength cat.

    Cataclysmic variables with degenerate donors which have evolved past the period minimum, also known as period-bouncers, are predicted to make up a great portion of the...
  • eROSITA study of the Canis Major overdensity

    Using data from eROSITA(extended Roentgen Survey with an Imaging Telescope Array) on board Spektrum-Roentgen-Gamma (Spektr-RG, SRG) taken during the first eROSITA all-sky survey...
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