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Here is a different kind of x-ray binary. In the foreground (top) is a hot star called a Be star. It spins so quickly that it is surrounded by a circumstellar disc of matter, flung off via centrifugal force. The Be star is in orbit around a tiny and ...

This is an animation of a high-mass x-ray binary, in which a giant blue star is in orbit around a compact companion – sometimes a neutron star and sometimes a black hole. The giant star is distorted owing to its proximity to its highly compact part...

This image shows a low-mass x-ray binary star seen from a nearby, hypothetical asteroid field. The system consists of a red dwarf (bottom) which is losing its atmosphere to a black hole via an accretion disc.

Here you have an impression of a high-mass x-ray binary (HMXB), in which a blue giant (right) orbits a compact object such as a neutron star or black hole. The blue giant has a powerful stellar wind, shown radiating outwards here. Some of this materi...

Cygnus X-1 is a very famous x-ray binary star system. It consists of a giant blue star (top) in orbit around what in all likelihood is a – wait for it – black hole. The black hole steals gas from its giant companion and that gas flows towards the...

In some x-ray binary systems matter is transferred from one star to the other via the donor star's stellar wind. The stellar wind, like the Sun's solar wind, is a steady stream of particles that blasts away from the star's surface and out into space....