English: Objects that are suspected to be Supermassive Black Holes (SMBH) ejected from their host galaxies or that experience gravitational or slingshot recoil. SMBHs suspected to be ejected are marked with orange crosshairs.
3C 186: Chiaberge et al. 2017 discovered that this quasar might be a gravitational recoiling black hole. Image is Hubble WFC3/IR F110W.
CID-42: Civano et al. 2010 discovered that this might be two or more objects experiencing gravitational recoil or slingshot recoil. Image is Hubble ACS F814W. See also official image by NASA
RCP 28: Also called [RCP2021b] 28 is a dwarf galaxy accociated with two objects that were discovered by van Dokkum et al. 2023 to be candidate runaway black holes. The lower left object is traced by shocks and star-formation in its wake. Image is Hubble ACS F606W+F814W (grayscale image) See also official image by NASA/ESA
SDSS 1133: Koss et al. 2014 suspects this to be a recoiled black hole. It should be ejected from the galaxy Markarian 177. Alternatively it could be a bright star, called a Luminous Blue Variable (LBV). Image is PanSTARRS g-band image.
Image Credit: Hubble Space Telescope ACS+WFC3/IR, PanSTARRS
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