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Bekenstein assigns entropy to a black hole

node

Jacob Bekenstein published the argument that a black hole must carry entropy proportional to the area of its horizon, in order that the second law of thermodynamics survive the act of dropping a hot gas into one. The proposal was resisted, because entropy implies temperature and temperature implies radiation, and black holes were by definition objects from which nothing emerges. Shakura and Sunyaev published their accretion disc model in the same year, so 1973 supplied both the thermodynamic problem and the standard description of the material outside.

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Evidence · 2
Timeline

No dated observations are stored for this object. Atlas shows what was observed and when — it does not infer a history.

Connections · 3
Assembled narrative · 1

Assembled from 31 blocks · 2 evidence · 26 related

  1. Story
  2. Jacob Bekenstein published the argument that a black hole must carry entropy proportional to the area of its horizon, in order that the second law of thermodynamics survive the act of dropping a hot gas into one. The proposal was resisted, because entropy implies temperature and temperature implies radiation, and black holes were by definition objects from which nothing emerges. Shakura and Sunyaev published their accretion disc model in the same year, so 1973 supplied both the thermodynamic problem and the standard description of the material outside.
  3. Knowledge
  4. Accretion disc
  5. Black hole entropy
  6. Jacob Bekenstein
  7. Bekenstein assigns entropy to a black hole
  8. Connections
  9. Black hole entropy
  10. Jacob Bekenstein
  11. Accretion disc
  12. The event horizon
  13. Jacob Bekenstein
  14. Hawking radiation
  15. Bekenstein assigns entropy to a black hole
  16. Hawking shows that black holes radiate
  17. Page states what unitarity requires of the radiation
  18. The Page curve is reproduced from within semiclassical gravity
  19. Black hole entropy
  20. Bekenstein assigns entropy to a black hole
  21. Innermost stable circular orbit
  22. Relativistic jet
  23. Cygnus X-1
  24. Cygnus X-1 is localised and weighed
  25. Bekenstein assigns entropy to a black hole
  26. The first image of a black hole shadow is published
  27. The M87* ring is imaged in polarised light
  28. A second epoch shows the ring persists and the bright spot moves
  29. Evidence
  30. Proposes that a black hole carries entropy proportional to the area of its horizon, in order to preserve the second law of thermodynamics. V55 VERIFICATION BASIS: not consulted in session; no research tool was available. Volume and page are from recall and must be checked.
  31. The standard thin accretion disc model, parameterising angular-momentum transport by a single viscosity coefficient. V55 VERIFICATION BASIS: not consulted in session; no research tool was available. Title, volume and page are from recall and must be checked.
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/atlas?object=EVT_BEKENSTEIN_ENTROPY_1973&experience=EVT_BEKENSTEIN_ENTROPY_1973