Linked from

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

• Radio astronomyCompared with: X-ray observations reveal high-energy processes that radio measurements can trace through different emissions.

• Infrared astronomyCompared with: X-rays reveal extremely hot and energetic environments rather than the cool, dusty sources central to infrared work.

• Galaxy clusterRelated: X-ray observations map the hot gas that pervades galaxy clusters.

• Dark matter haloRelated: Hot gas in cluster halos emits X-rays that help trace their gravitational potential.

• Supernova remnantRelated: Hot shocked gas and compact objects make many remnants bright X-ray sources.

• TelescopeRelated: X-ray telescopes detect energetic phenomena that visible-light instruments cannot show.

• X-rayRelated: High-energy celestial sources produce X-rays that reveal hot and energetic environments.

• Charge-coupled deviceRelated: Specialized CCDs measure X-ray photon energies as well as their arrival positions.

• Gamma-ray astronomyCompared with: The boundary between X-rays and gamma rays is convention-dependent, but their detectors and typical source regimes differ.

• Weak gravitational lensingCompared with: X-ray measurements trace hot cluster gas, providing a luminous-matter comparison to lensing mass.

• Chandra X-ray ObservatoryNarrower topic: Chandra is a flagship observatory in this branch of astronomy.

• Intracluster mediumNarrower topic: The medium’s thermal X-rays make clusters among the brightest extended sources in this band.

• Space telescopeBroader topic: Space observatories revealed black holes, hot plasmas, and other sources hidden from ground instruments.

• Ultraviolet astronomyCompared with: X-rays trace more energetic emission than ultraviolet light and require different detectors.

• Seyfert galaxyRelated: Hard X-rays probe Seyfert accretion regions, including nuclei hidden at optical wavelengths.

• Sunyaev–Zel'dovich effectCompared with: X-rays measure gas density and temperature, complementing the effect's line-of-sight pressure signal.

• Coma ClusterRelated: Hot gas in Coma radiates X-rays, exposing matter that optical images miss.

• Intergalactic mediumRelated: X-ray observations detect the hottest intergalactic gas around galaxy groups and clusters.

• Observational astronomyBroader topic: X-ray observations trace extremely hot gas and compact, energetic objects.

• Tidal disruption eventRelated: X-rays can trace hot gas near the black hole during a disruption flare.

• Inverse Compton scatteringRelated: Scattered cosmic background and ambient photons often emerge in the X-ray band.

• Stellar flareRelated: X-ray observations trace the hot plasma produced during energetic flares.

• Centaurus ARelated: X-ray observations trace hot gas, compact sources, and energetic activity in Centaurus A.

• Optical astronomyCompared with: X-rays trace extremely hot and energetic environments, unlike the cooler sources prominent in optical light.

• Riccardo GiacconiNarrower topic: Giacconi helped establish this observational field through rocket experiments and space-based instruments.

• Carina NebulaRelated: X-ray observations trace hot plasma and energetic stellar interactions in the complex.

• Circumgalactic mediumRelated: Hot circumgalactic gas in massive halos emits detectable X-rays.

• MagnetarNarrower topic: X-ray observations reveal magnetars’ persistent emission, bursts, and changing spin.

• Shapley SuperclusterRelated: X-ray observations reveal the hot gas that marks and characterizes massive clusters in the region.

• Warm–hot intergalactic mediumRelated: X-ray observations can detect the hottest and densest portions of the medium.

• UhuruNarrower topic: Uhuru's instruments and survey helped establish this field.

• Whirlpool GalaxyRelated: X-ray observations of M51 trace energetic sources and hot gas within the interacting system.

• Einstein ObservatoryNarrower topic: Einstein helped shift the field from source detection toward spatially resolved astrophysics.

• Stellar coronaRelated: Hot stellar coronae emit X-rays, making this a principal way to study them.

• X-ray telescopeNarrower topic: X-ray telescopes are the principal instruments for observing this otherwise inaccessible wavelength band.

• Missing baryon problemRelated: X-ray observations measure the hottest gas in galaxy groups and clusters.

• Scorpius X-1Narrower topic: Scorpius X-1’s detection showed that cosmic X-ray sources could be studied from space.

• X-ray detectorRelated: Space instruments need detectors that register faint, energetic photons and often measure their energies.

• XMM-NewtonNarrower topic: XMM-Newton is a space observatory built specifically for this branch of astronomy.

• Abell 1689Related: X-ray observations trace the cluster’s hot gas and help assess its physical state.

• Aerobee rocketRelated: Aerobees lifted detectors above the atmosphere, which absorbs most cosmic X-rays.

• Perseus ClusterRelated: X-ray observations map the cluster’s hot gas and expose its central cavities.

• Electromagnetic astronomyBroader topic: X-ray sources expose accretion, stellar explosions, and million-degree cosmic gas.

• Kepler's SupernovaRelated: X-ray observations map the remnant’s hot shocked gas and reveal its elemental composition.

• NGC 4151Related: X-ray observations track rapid changes in NGC 4151’s accretion-powered core.

• Stellar black holeNarrower topic: X-ray observations expose accretion around black holes that emit no light themselves.

• Visible-light astronomyCompared with: X-rays expose high-energy environments largely invisible to optical instruments.

• Bruno RossiNarrower topic: Rossi helped establish this field by detecting the first extrasolar X-ray source.

• High-energy astrophysicsBroader topic: X-rays trace hot gas, accretion flows, and compact remnants in energetic systems.

• Messier 15Related: X-ray observations of Messier 15 reveal energetic binaries and compact stellar remnants.