Intermediate-mass black hole

An intermediate-mass black hole (IMBH) is a class of black hole with mass in the range 10²–10⁵ solar masses: significantly higher than stellar black holes but lower than the 10⁵–10⁹ solar mass supermassive black holes.^[2]^[3] Several IMBH candidate objects have been discovered in the Milky Way galaxy and others nearby, based on indirect gas cloud velocity and accretion disk spectra observations of various evidentiary strength.

^ Gebhardt, Karl; Rich, R. M.; Ho, Luis C. (December 2005), "An Intermediate-Mass Black Hole in the Globular Cluster G1: Improved Significance from New Keck and Hubble Space Telescope Observations", The Astrophysical Journal, 634 (2): 1093–1102, arXiv:astro-ph/0508251, Bibcode:2005ApJ...634.1093G, doi:10.1086/497023, S2CID 119049663
^ Jiang, Yan-Fei; Greene, Jenny E.; Ho, Luis C.; Xiao, Ting; Barth, Aaron J. (2011), "The Host Galaxies of Low-mass Black Holes"
^ Graham, Alister W.; Scott, Nicholas (2015), "The (Black Hole)-bulge Mass Scaling Relation at Low Masses"

[apj634_2_1093-1] Gebhardt, Karl; Rich, R. M.; Ho, Luis C. (December 2005), "An Intermediate-Mass Black Hole in the Globular Cluster G1: Improved Significance from New Keck and Hubble Space Telescope Observations", The Astrophysical Journal, 634 (2): 1093–1102, arXiv:astro-ph/0508251, Bibcode:2005ApJ...634.1093G, doi:10.1086/497023, S2CID 119049663

[2] Jiang, Yan-Fei; Greene, Jenny E.; Ho, Luis C.; Xiao, Ting; Barth, Aaron J. (2011), "The Host Galaxies of Low-mass Black Holes"

[3] Graham, Alister W.; Scott, Nicholas (2015), "The (Black Hole)-bulge Mass Scaling Relation at Low Masses"

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