Astronomers have uncovered that a well-known X-ray binary, whose exact nature has been a mystery to scientists until now, is actually a hidden ultraluminous X-ray source. The study is published in ...

Astronomers from the National Central University in Taiwan have investigated an unusual superorbital period variation of an X ...

This marks the first-ever detection of X-ray spectral lines in a binary black hole system, offering a novel window into the ...

Mereghetti noted that HD 49798/RX J0648.0–4418 is the only known accretion-powered X-ray binary in which the mass donor is a hot subdwarf. Moreover, the white dwarf's large mass and high spin ...

Astronomers at the Indian Institute of Astrophysics (IIA), an autonomous institute of the Department of Science and ...

In X-Ray binary systems, a compact object (like a Black Hole, a Neutron Star or a White Dwarf) usually rotates about an optical star. An X-Ray binary with a Neutron Star as the compact object can be ...

A stellar mass black hole (BH) binary system consists of a BH with a mass function in range 5 – 100Msun with a companion star (all stellar species from dwarves to giants). Most of these binaries have ...