Astrophysical: X-ray binary stars

  • Publication
    A Multiwavelength Study of GRS 1716-249 in Outburst: Constraints on Its System Parameters
    We present a detailed study of the evolution of the Galactic black hole transient GRS 1716-249 during its 2016-2017 outburst at optical (Las Cumbres Observatory...
  • Publication
    Chasing the Break: Tracing the Full Evolution of a Black Hole X-Ray Binary Jet with Multiwavelength Spectral Modeling
    Black hole (BH) X-ray binaries (XRBs) are ideal targets to study the connection between accretion inflow and jet outflow. Here we present quasi-simultaneous...
  • Publication
    Chemical composition of secondary stars in LMXBs: implications on the progenitors of black holes and neutron stars
    Recent studies of chemical abundances of secondary stars in low mass X-ray binaries have opened a new window to obtain information on the progenitors of black...
  • Publication
    Discovery of an X-Ray Photoionized Optical Nebula and a Radio Nebula Associated with the ULX NGC 4861 X-1
    We have conducted long-slit spectroscopic observations and analyzed archival radio data for the ultraluminous X-ray source (ULX) NGC 4861 X-1. Our spectral line...
  • Publication
    Dynamical Confirmation of a Black Hole in MAXI J1820+070
    We present time-resolved 10.4 m Gran Telescopio Canarias and 4.2 m William Herschel Telescope intermediate resolution spectroscopy of the X-ray transient MAXI...
  • Publication
    Echo Tomography of Sco X-1 using Bowen Fluorescence Lines
    We present preliminary results of a simultaneous X-ray/optical campaign of the proto-typical LMXB Sco X-1 at 1-10 Hz time resolution. Lightcurves of the high...
  • Publication
    Hunting for eclipsing Post Common Envelope Binaries from SDSS
    We give an overview of a project aiming to identify new eclipsing post common envelope binaries from the Sloan Digital Sky Survey. This work focuses on the...
  • Publication
    Indirect evidence for an active radio pulsar in SAX J1808.4-3658 during quiescence
    Millisecond radio pulsars are neutron stars that have been spun-up by the transfer of angular momentum during the low-mass X-ray binary phase. The transition...
  • News
    New source of lithium production found in the Universe
    A team of researchers from the Instituto de Astrofísica de Canarias (IAC), the University of Manchester and the Norwegian University of Science and Technology...