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| title | chunk | source | category | tags | date_saved | instance |
|---|---|---|---|---|---|---|
| Accretion disk | 4/4 | https://en.wikipedia.org/wiki/Accretion_disk | reference | science, encyclopedia | 2026-05-05T13:31:43.355727+00:00 | kb-cron |
== Decretion disk == The opposite of an accretion disk is an decretion disk where instead of material accreting from a disk on to a central object, material is excreted from the center outward onto the disk. They are formed from matter ejected from a star, and are often assosicated with Be stars.
== See also ==
== Notes ==
== References ==
== Further reading == Frank, Juhan; Andrew King; Derek Raine (2002), Accretion power in astrophysics (Third ed.), Cambridge University Press, ISBN 978-0-521-62957-7 Krolik, Julian H. (1999), Active Galactic Nuclei, Princeton University Press, ISBN 978-0-691-01151-6 Blaes, Omer (2014). "General Overview of Black Hole Accretion Theory". Space Science Reviews. 183 (1–4): 21–41. arXiv:1304.4879. Bibcode:2014SSRv..183...21B. doi:10.1007/s11214-013-9985-6. A modern review focused on models for turbulence required by alpha process. Abramowicz, M.A. (December 22, 2005). "Super-Eddington Black Hole Accretion:: Polish Doughnuts and Slim Disks". In Merloni, Andrea; Nayakshin, Sergei; Sunyaev, Rashid A. (eds.). Growing Black Holes: Accretion in a Cosmological Context. Berlin, Heidelberg: Springer Berlin Heidelberg. pp. 257–273. doi:10.1007/11403913_49. ISBN 978-3-540-25275-7. Retrieved 2026-04-13. Review with a good introduction to the topic.
== External links ==
Professor John F. Hawley homepage, University of Virginia (archived 2015) The Dynamical Structure of Nonradiative Black Hole Accretion Flows, John F. Hawley and Steven A. Balbus, 2002 March 19, The Astrophysical Journal, 573:738-748, 2002 July 10 Accretion discs, Scholarpedia Merali, Zeeya (21 June 2006). "Magnetic fields snare black holes' food". New Scientist.