X-ray Binary Stars
What is a Binary Star System?
Binary star systems contain two stars that orbit around their common center of mass. Many of the stars in our Galaxy are part of a binary system.
X-ray Binaries
A special class of binary stars is the X-ray binaries, so-called because they emit X-rays. X-ray binaries are made up of a normal star and a collapsed star (a white dwarf, neutron star, or black hole). These pairs of stars produce X-rays if the stars are close enough together that material is pulled off the normal star by the gravity of the dense, collapsed star. The X-rays come from the area around the collapsed star where the material that is falling toward it is heated to very high temperatures (over a million degrees!).
Show Me a Movie about X-ray Binaries!
See an animation of an X-ray binary system, showing material transferring from a companion star to the X-ray emitting accretion disk around the compact object. You will need the appropriate software and drivers to view the movie.
- AVI format (2.4 Mb)
- QuickTime format (2.1 Mb)
- Description
Additional Links
- Quiz me about this topic!
- Cool fact about this topic!
- Try this!
- FAQs on Binary Star Systems
- Give me additional resources!