🖼️

Globular cluster Mayall II (M31 G1) is a possible candidate for hosting an intermediate-mass black hole at its center1

(echo:: @ )

Footnotes

  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