Linked from

The 130 pages that link to Spectroscopy, each with the reason it gives.

• WavelengthRelated: Wavelength-resolved measurements reveal characteristic absorption and emission features.

• FrequencyRelated: Frequency-resolved spectra reveal energy levels and chemical composition.

• Electromagnetic spectrumRelated: It uses spectral features to identify substances and physical conditions.

• Electromagnetic radiationRelated: Measured absorption and emission reveal the composition and properties of matter.

• Stellar nucleosynthesisRelated: Stellar spectra reveal which elements and isotopes are present at a star’s surface.

• Zeeman effectNarrower topic: Spectroscopy measures the line shifts and separations that define the effect.

• DiffractionRelated: Diffraction gratings separate wavelengths to analyze the spectral composition of light.

• Spectral lineNarrower topic: Spectroscopy uses line patterns to identify substances and infer physical conditions.

• H II regionRelated: Line ratios and profiles diagnose the region’s temperature, density, and composition.

• Visible spectrumNarrower topic: Visible spectroscopy measures absorption or emission within the human-visible band.

• MetallicityNarrower topic: Astronomers infer metallicity from element-specific absorption and emission features in spectra.

• AstrobiologyRelated: Spectra reveal atmospheric molecules that may serve as biosignatures.

• Analytical chemistryNarrower topic: Many analytical methods infer composition from characteristic interactions between matter and radiation.

• TelescopeRelated: A telescope paired with a spectrograph can measure an object’s composition and motion.

• Cosmological redshiftRelated: Spectral lines provide the measured wavelength shifts used to determine redshift.

• InterferometryCompared with: Spectroscopy often measures spectral intensity, whereas interferometry extracts information from phase relationships.

• AstrophotographyRelated: Spectral imaging extracts chemical and physical information beyond a target’s appearance.

• Planetary nebulaRelated: Nebular spectra reveal elemental abundances, temperature, and gas motion.

• Charge-coupled deviceRelated: CCD arrays record spectra as spatial patterns of light intensity across detector pixels.

• HeliumRelated: Solar spectroscopy provided the first evidence for helium through its distinctive spectral line.

• AstronomyRelated: Astronomical spectra reveal objects’ composition, temperature, motion, and physical conditions.

• Galaxy rotation curveNarrower topic: Spectral measurements turn galaxy light into velocity data.

• BiosignatureRelated: Remote biosignature searches use spectra to identify gases and surface materials.

• Light curveCompared with: Spectroscopy reveals spectral features that a brightness-versus-time plot does not preserve.

• Atomic spectrumNarrower topic: Atomic spectra are a central source of information in spectroscopic analysis.

• Gustav KirchhoffNarrower topic: Kirchhoff helped establish spectral analysis as a means of identifying substances.

• MicroscopyCompared with: Spectroscopy identifies composition through radiation, while microscopy primarily maps spatial detail.

• Robert BunsenNarrower topic: Bunsen’s work with Kirchhoff helped make spectroscopy a chemical identification method.

• Wolf–Rayet starNarrower topic: Spectroscopy revealed the broad emission features that first distinguished the stars.

• Computational chemistryRelated: Computed spectra help assign experimental signals and infer molecular structure.

• Fraunhofer linesNarrower topic: Fraunhofer lines helped establish spectra as evidence about matter beyond direct sampling.

• Mount Wilson ObservatoryRelated: Spectral measurements at Mount Wilson revealed stellar motions and physical properties.

• PolarimetryCompared with: Spectroscopy resolves spectral features; polarimetry resolves polarization properties.

• Ultraviolet astronomyRelated: Ultraviolet spectra reveal temperatures, chemical abundances, and motions in celestial sources.

• Emission spectrumNarrower topic: It uses emission spectra to analyze substances and physical processes.

• Galaxy redshift surveyRelated: Survey instruments identify spectral features whose shifts yield galaxy redshifts.

• William RamsayRelated: Distinctive spectra helped identify gases isolated in Ramsay’s laboratory.

• Sloan Digital Sky SurveyNarrower topic: SDSS spectra reveal object types, chemical properties, and redshifts.

• SpectrophotometryNarrower topic: Spectrophotometry is one measurement-based branch of this broader field.

• TautomerismRelated: Spectral measurements can help distinguish tautomers and estimate their populations.

• Chemical analysisNarrower topic: Many chemical methods infer composition from characteristic absorption or emission of light.

• Fabry–Pérot interferometerNarrower topic: The interferometer became a tool for resolving fine structure in optical spectra.

• Kirchhoff's law of thermal radiationRelated: Spectral measurements helped establish that emission and absorption correspond wavelength by wavelength.

• Rydberg formulaNarrower topic: The formula grew from attempts to organize measured atomic spectra.

• Doppler broadeningNarrower topic: Spectroscopy measures line profiles whose widths can encode particle velocities.

• Joseph FourierRelated: Fourier methods help separate complex spectra into component frequencies.

• Atomic energy levelNarrower topic: It measures level spacings through characteristic transitions and spectral lines.

• Observational astronomyRelated: Spectra reveal celestial objects’ composition, temperature, motion, and physical conditions.

• Planetary geologyRelated: Spectral signatures help identify minerals and ices on distant surfaces.

• History of astronomyRelated: Spectral analysis made it possible to infer stars' compositions, temperatures, and motions.