Editing X-ray astronomy (section)

==Exotic X-ray sources==
{{main|Astrophysical X-ray source}}
{{See also|Be X-ray binaries}}
[[File:PIA24574-SS433-ULXray-20210709.jpg|thumb|center|800px|<div align="center">[[SS 433]] - possible [[Ultraluminous X-ray source|ULX ray source]]</div>]]
A [[microquasar]] is a smaller cousin of a [[quasar]] that is a radio emitting [[X-ray binary]], with an often resolvable pair of radio jets.
[[LS I +61 303|LSI+61°303]] is a periodic, radio-emitting binary system that is also the gamma-ray source, CG135+01.
Observations are revealing a growing number of recurrent [[X-ray transient]]s, characterized by short outbursts with very fast rise times (tens of minutes) and typical durations of a few hours that are associated with OB [[supergiant]]s and hence define a new class of massive X-ray binaries: Supergiant Fast X-ray Transients (SFXTs).
Observations made by [[Chandra X-ray Observatory|Chandra]] indicate the presence of loops and rings in the hot X-ray emitting gas that surrounds [[Messier 87]]. A '''[[magnetar]]''' is a type of neutron star with an extremely powerful magnetic field, the decay of which powers the emission of copious amounts of high-energy electromagnetic radiation, particularly X-rays and [[gamma ray]]s.