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The 38 pages that link to Galaxy rotation curve, each with the reason it gives.

• Dark matterRelated: Many galaxies rotate too quickly at their outskirts for visible matter alone to explain.

• Milky WayRelated: The Milky Way’s rotation curve reveals the distribution of mass beyond its bright disk.

• Dark matter haloRelated: Outer rotation speeds reveal mass extending beyond the visible galaxy.

• Astronomical spectroscopyRelated: Doppler measurements across a galaxy map the motions used to construct its rotation curve.

• GalaxyRelated: Observed curves provide evidence for mass beyond the visible stars and gas.

• Spiral galaxyRelated: Rotation measurements reveal the dynamics that shape spiral disks and imply unseen mass.

• Weak gravitational lensingCompared with: Rotation curves infer mass from motions, while weak lensing infers it from bent light.

• Differential rotationRelated: It measures how rotation varies across a galaxy and constrains its mass distribution.

• Hubble sequenceCompared with: Rotation curves probe mass distribution rather than visible morphological class.

• 21-centimeter lineRelated: Doppler shifts across the line reveal gas velocities used to measure galaxy rotation.

• Galactic diskRelated: It measures the disk’s rotation and reveals how mass is distributed within and around it.

• Modified Newtonian dynamicsRelated: MOND aims to explain why outer galactic speeds remain unexpectedly high.

• Tully–Fisher relationRelated: The outer rotation speed is the key kinematic quantity in the relation.

• Density wave theoryRelated: Differential rotation shears material around the disk, while waves can preserve spiral structure.

• Cold dark matterRelated: Nearly flat outer rotation curves provide evidence for extended unseen mass around galaxies.

• Stellar kinematicsRelated: Stellar motions help measure how rotation speed varies across the Milky Way.

• Fritz ZwickyRelated: Flat rotation curves later supplied a distinct line of evidence for dark matter beyond Zwicky’s cluster measurements.

• Vesto SlipherCompared with: Unlike Slipher’s whole-object radial velocities, rotation curves measure internal motion across a galaxy.

• Doppler spectroscopyRelated: Doppler shifts across a galaxy map the line-of-sight component of its rotation.

• Neutral hydrogenRelated: Doppler-resolved hydrogen emission traces rotation far beyond many galaxies’ bright stellar disks.

• Galactic haloRelated: Outer rotation speeds constrain the mass enclosed by the halo.

• Stellar dynamicsRelated: Stellar motions traced across a galaxy reveal its mass distribution through the rotation curve.

• Grand-design spiral galaxyRelated: Rotation measurements help test how spiral patterns move relative to galactic material.

• Tidal dwarf galaxyRelated: Their internal motions help assess whether apparent mass discrepancies require dark matter.

• Triangulum GalaxyRelated: M33’s measured rotation helps constrain its mass distribution.

• Vera RubinBroader topic: Rubin measured these curves and found outer material moving faster than visible matter alone predicted.

• Flocculent spiral galaxyRelated: Rotation measurements help assess how disk dynamics shear and reshape spiral features.

• Sombrero GalaxyRelated: Rotation measurements help trace the mass distribution beyond the visible bulge and disk.

• Messier 81Related: M81’s rotation provides evidence about the distribution of its mass.

• Perseus ArmRelated: Rotation measurements help place spiral structure within the Milky Way’s disk.

• Ring galaxyRelated: Rotation measurements reveal whether ring material moves outward after an impact or follows stable resonant orbits.

• Dark galaxyRelated: Gas motions can test whether an apparently starless cloud is gravitationally bound.

• Galactic astronomyRelated: The Milky Way’s rotation curve tests its mass distribution, including unseen dark matter.

• Galaxy rotation problemBroader topic: Flat outer portions of these curves show the discrepancy most directly.

• High-velocity cloudRelated: The Milky Way’s rotation pattern provides the reference against which anomalous cloud velocities are recognized.

• Jeans equationsRelated: Jeans analyses relate observed motions to the gravitational field underlying the curve.

• Scutum–Centaurus ArmRelated: Rotation measurements constrain the arm’s location within the disk.

• Astronomical masses and mass distributionsRelated: Its shape reveals how galactic mass is distributed beyond the bright disk.