What are xray bursters?

X-ray bursters are a class of neutron stars that undergo sudden and sporadic increases in their X-ray emission, known as X-ray bursts. These bursts can last for a few seconds to several minutes and can release a significant amount of energy.

X-ray bursters are believed to be accreting matter from a companion star, either through Roche lobe overflow or wind accretion. The accreted material builds up on the surface of the neutron star, increasing the pressure and temperature. When the conditions are right, a thermonuclear runaway occurs, leading to a rapid and explosive release of energy in the form of X-rays.

The X-ray bursts from these objects are characterized by their high luminosity, reaching luminosities comparable to entire galaxies. They are also observed to have a recurring pattern, with bursts occurring at regular intervals or with specific recurrence time scales.

The study of X-ray bursters provides important insights into the behavior and properties of neutron stars, including their accretion mechanisms, temperature, and density. They are also used as probes to study the composition and evolution of binary star systems.