X-ray binaries

Be X-ray binaries
Be X-ray binaries are a class of High-mass X-ray binaries that consist of a Be star and a neutron star. The neutron star is usually in a wide highly elliptical orbit around the Be star.

Be X-ray Binaries
Be stars are massive stars surrounded by an equatorial disk of material (a circumstellar disk).

X-ray Binaries Quiz
Most of the brightest persistent sources in the X-ray sky are all binary systems.
[A] True
[B] False ...

X-ray binaries are a class of binary stars that are very luminous in X-rays. The X-rays are produced by matter falling from one component (usually a relatively normal star) to the other component, which is a neutron star or a black hole.

X-ray binaries are neutron stars or stellar black holes which are in a binary system with a much more normal star. The neutron star or black hole cannibalizes matter from their companions when the normal star overflows its Roche lobe.

X-ray binaries are some of the most luminous X-ray sources in the sky.

[2] The similarities between the emissions of X-ray binaries such as HDE 226868/Cygnus X-1 and active galactic nuclei suggests a common mechanism of energy generation involving a black hole, an orbiting accretion disk and associated jets.

Some of the most spectacular are bright X-ray sources and are known as X-ray binaries or X-ray pulsars. In these systems, gas is being drawn from the outer layers of a companion star by the neutron star's gravitational pull.

"We know of a few other systems, called ultra-compact low-mass X-ray binaries, that are likely to be evolving according to the scenario above and may likely represent the progenitors of a pulsar like J1719-1438," says team member Andrea Possenti, ...

In pulsars which are part of supernova remnants, the x-rays result from the jets of material streaming out along the magnetic field of the pulsar. For pulsars in x-ray binaries, ...

Firstly X-rays are emitted by black holes in active galactic nucleus, or AGN for short, galaxy clusters, supernova remnants, stars, binary stars containing a white dwarf (cataclysmic variable stars), neutron star or a black hole (X-ray binaries), ...

Pulsars are magnetized rotating neutron stars and X-ray binaries consist of a neutron star as a member of the binary system, the X-ray emission being associated with mass transfer onto the neutron star. [D89] ...

See also: Aries, X-ray, Energy, Ray, Universe