@prefix mdl: <http://data.loterre.fr/ark:/67375/MDL> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

mdl:-RF7SDLLZ-2
  skos:prefLabel "Tully-Fisher relation"@en, "relation Tully-Fisher"@fr ;
  a skos:Concept ;
  skos:related mdl:-PMJ3PPBB-N .

mdl: a skos:ConceptScheme .
mdl:-PMJ3PPBB-N
  a skos:Concept ;
  skos:broader mdl:-G2ZJ7TR2-P ;
  skos:hiddenLabel "rotation curves"@en, "Rotation curve"@en, "Courbe rotation"@fr, "courbes de rotations"@fr, "Courbe rotations"@fr ;
  skos:prefLabel "courbe de rotation"@fr, "rotation curve"@en ;
  skos:definition "La courbe de rotation d'une galaxie peut être représentée par un graphe qui pointe la vitesse orbitale des étoiles ou du gaz dans la galaxie sur l'axe des Y en fonction de leur distance depuis le centre de la galaxie sur l'axe des X. (Wikipedia, L'Encylopédie Libre, <a href=\"https://fr.wikipedia.org/wiki/Courbe_de_rotation_des_galaxies\" target=\"_blank\">https://fr.wikipedia.org/wiki/Courbe_de_rotation_des_galaxies</a>)"@fr, "The rotation curve of a disc galaxy (also called a velocity curve) is a plot of the orbital speeds of visible stars or gas in that galaxy versus their radial distance from that galaxy's centre. It is typically rendered graphically as a plot, and the data observed from each side of a spiral galaxy are generally asymmetric, so that data from each side are averaged to create the curve. A significant discrepancy exists between the experimental curves observed, and a curve derived by applying gravity theory to the matter observed in a galaxy. Theories involving dark matter are the main postulated solutions to account for the variance. (Wikipedia, The Free Encyclopedia, <a href=\"https://en.wikipedia.org/wiki/Galaxy_rotation_curve\" target=\"_blank\">https://en.wikipedia.org/wiki/Galaxy_rotation_curve</a>)"@en ;
  skos:exactMatch <https://fr.wikipedia.org/wiki/Courbe_de_rotation_des_galaxies>, <https://en.wikipedia.org/wiki/Galaxy_rotation_curve> ;
  skos:inScheme mdl: ;
  skos:related mdl:-RF7SDLLZ-2 .

mdl:-G2ZJ7TR2-P
  skos:prefLabel "distribution des vitesses"@fr, "velocity distribution"@en ;
  a skos:Concept ;
  skos:narrower mdl:-PMJ3PPBB-N .