Astrophysical: Accretion

  • Publication
    Bursts, eclipses, dips and a refined position for the luminous low-mass X-ray binary in the globular cluster Terzan 6
    GRS 1747-312 is a bright transient X-ray source in the globular cluster Terzan 6 with quasi-periodic outbursts approximately every 4.5 months. We carried out 2...
  • Publication
    Cataclysmic variables from a ROSAT/2MASS selection - I. Four new intermediate polars
    We report the first results from a new search for cataclysmic variables (CVs) using a combined X-ray (ROSAT)/infrared (2MASS) target selection that...
  • Publication
    Chandra and RXTE spectroscopy of the Galactic microquasar XTE J1550-564 in outburst
    On two occasions, we obtained nearly simultaneous ~=4 ks snapshot observations of the Galactic black hole and microquasar XTE J1550-564 with Chandra and RXTE...
  • Publication
    Compact Optical Counterparts of Ultraluminous X-Ray Sources
    Using archival Hubble Space Telescope (HST) imaging data, we report the multiband photometric properties of 13 ultraluminous X-ray sources (ULXs) that have a...
  • Publication
    Compact radio emission in Ultraluminous X-ray sources
    We present results from our studies of radio emission from selected Ultraluminous X-ray (ULX) sources, using archival Giant Metrewave Radio Telescope (GMRT)...
  • Publication
    Constraining the properties of neutron star crusts with the transient low-mass X-ray binary Aql X-1
    Aql X-1 is a prolific transient neutron star low-mass X-ray binary that exhibits an accretion outburst approximately once every year. Whether the thermal X-rays...
  • News
    Continuous infrared winds discovered during the eruption of a stellar mass black hole
    A team of researchers from the Instituto de Astrofísica de Canarias (IAC) has detected for the first time the constant infrared emission from winds produced...
  • Publication
    Contribution of a disc component to single-peaked broad lines of active galactic nuclei
    We study the disc emission component hidden in the single-peaked broad emission lines (BELs) of active galactic nuclei. We compare the observed broad lines from...
  • Publication
    Contribution of the disk emission to the broad emission lines in AGNs: Two-component model
    We present an investigation of the structure of the emission line region in a sample of 12 single-peaked Active Galactic Nuclei (AGNs). Using the high...