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

mdl: a skos:ConceptScheme .
mdl:-K0272Z66-T
  skos:prefLabel "binary star"@en, "binaire"@fr ;
  a skos:Concept ;
  skos:narrower mdl:-M73GC77S-J .

mdl:-MPNJ83TZ-N
  skos:prefLabel "X-ray burst"@en, "sursaut RX"@fr ;
  a skos:Concept ;
  skos:related mdl:-M73GC77S-J .

mdl:-M73GC77S-J
  skos:definition "X-ray binaries are a class of binary stars that are luminous in X-rays. The X-rays are produced by matter falling from one component, called the donor (usually a relatively normal star), to the other component, called the accretor, which is very compact: a neutron star or black hole. The infalling matter releases gravitational potential energy, up to several tenths of its rest mass, as X-rays. (Hydrogen fusion releases only about 0.7 percent of rest mass.) The lifetime and the mass-transfer rate in an X-ray binary depends on the evolutionary status of the donor star, the mass ratio between the stellar components, and their orbital separation. (Wikipedia, The Free Encyclopedia, <a href=\"https://en.wikipedia.org/wiki/X-ray_binary\" target=\"_blank\">https://en.wikipedia.org/wiki/X-ray_binary</a>)"@en, "Une binaire X est formée d'une étoile \"normale\" orbitant autour d'une étoile à neutrons ou d'un trou noir avec une courte période. Le rayonnement X provient de l'énorme quantité d'énergie dégagée par l'accrétion de la matière de l'étoile autour de l'objet compact. (Wikipedia, L'Encylopédie Libre, <a href=\"https://fr.wikipedia.org/wiki/Binaire_X\" target=\"_blank\">https://fr.wikipedia.org/wiki/Binaire_X</a>)"@fr ;
  skos:hiddenLabel "binaires X"@fr, "X ray binary"@en, "sources RX binaires"@fr, "Binaire RX"@fr ;
  skos:prefLabel "binaire X"@fr, "X-ray binary"@en ;
  a skos:Concept ;
  skos:related mdl:-MPNJ83TZ-N ;
  skos:altLabel "source RX binaire"@fr, "X-ray binary star"@en ;
  skos:broader mdl:-K0272Z66-T ;
  skos:inScheme mdl: ;
  skos:exactMatch <https://fr.wikipedia.org/wiki/Binaire_X>, <https://en.wikipedia.org/wiki/X-ray_binary> .