...X-ray binaries (XRBs) are composed of a normal star or a white dwarf transferring mass onto a compact neutron star or a black hole. Based on the mass of the companion star, astronomers divide them into low-mass X-ray binaries (LMXBs) and high-mass X-ray binaries (HMXBs).Discovered on October 9, 2004, by the International Gamma-Ray Astronomy Laboratory (INTEGRAL), IGR J17407−2808 (or J17407 for short) is an LMXB at a distance of some 12,400 light years away from the Earth. Although J17407 exhibited several peculiarly quick and strong flares in the past, it remained a poorly studied source...NuSTAR observations conducted by Ducci's team...
