Linked from

The 61 pages that link to X-ray astronomy, each with the reason it gives.

• Messier 49Related: X-ray observations reveal hot gas around Messier 49 and its interaction with the Virgo environment.

• NGC 5548Related: X-ray observations probe hot gas and changing absorption around NGC 5548’s black hole.

• ROSATNarrower topic: ROSAT was a major observatory in this broader branch of astronomy.

• Astronomical radio sourceCompared with: X-rays reveal hot, energetic gas, while radio waves often trace relativistic particles and magnetic fields.

• Astrophysical X-ray sourceNarrower topic: It is the observational field that detects and classifies these sources.

• Black hole astronomyRelated: Hot gas near stellar-mass black holes often shines strongly in X-rays.

• Cygnus LoopRelated: X-ray observations reveal the Loop’s hottest shocked gas, hidden from optical views.

• Galaxy groups and clustersRelated: X-ray observations map the temperature and density of intracluster gas.

• Gamma CassiopeiaeNarrower topic: Its unusually hard X-rays connect this optical prototype to high-energy astrophysics.

• Radio-quiet neutron starNarrower topic: X-ray observations have identified neutron stars without detectable radio counterparts.

• Superconducting detectorRelated: Transition-edge microcalorimeters resolve the energies of individual incoming X-ray photons.