|Type||Scientific x-ray telescope|
|Start||10. 12. 1999|
|Last update: 1. 12. 2022|
Astronomers detected matter escaping neutron star in low-mass X-ray binary Swift J1858.6-0814 (a system containing neutron star and emitting X-rays). The detection was made in the visible and ultraviolet spectrum for the first time. Until now there were only observed systems with escaping cold or hot matter.
Star HD 189733 is flaring in half of its observations. Astronomers also found out that the variability is significantly different in different parts of the electromagnetic spectrum.
Tidal disruption event known as Swift J1644+57 is a peculiar one - it is unussualy bright and variable in X-rays. New obesrvations with XMM-Newton and Swift telescopes now detail its behavior. Also Scientists were able to put limits in mass of the black hole to 0.6-7.9 millions of solar masses.