This image shows the effects of a giant black hole that has been flipped around twice, causing its spin axis to point in a different direction from before. At the center of 4C +00.58 is a supermassive black hole that is actively pulling in large quantities of gas. Gas swirling toward the black hole forms a disk around the black hole, generating strong electromagnetic forces that propel some of the gas away from the disk at high speed, producing radio jets. A radio image of this galaxy shows a bright pair of jets pointing from left to right and a fainter, more distant line of radio emission running approximately from the top to the bottom of the image. A labeled image shows these two sets of radio emission. This galaxy belongs to a class of “X-shaped” galaxies because of the outline of the radio emission.
According to the scenario presented by a new study, the spin axis of the black hole ran along a diagonal line from top-right to bottom-left. The galaxy then collided with a smaller galaxy. Possible evidence for this collision is seen in the optical image, in the form of a stellar shell. After this collision, a jet powered by the black hole ignited, blowing away gas to form cavities in the hot gas. Since the gas falling onto the black hole was not aligned with the spin of the black hole, the spin axis of the black hole rapidly changed direction, and the jets then pointed in a roughly top-left to bottom-right direction, creating cavities and radio emission in this direction.
Then, either a merging of the two central black holes from the colliding galaxies, or more gas falling onto the black hole caused the spin axis to jerk around to its present direction in roughly a left to right direction.
Credit: X-ray (NASA/CXC/UMD/Hodges-Kluck et al): Radio NSF/NRAO/VLA/UMD/ Hodges-Kluck et al); Optical (SDSS)
On Saturday, June 11, 2016 at 11am Buckroe Beach in Hampton, VA the Sankofa Projects celebrated their 5th annual International Day of Remembrance honoring African slaves in the Middle Passage. From a 2015 article Chadra Pittman Walke, founder and executive director of the Sankofa Projects explained: Just as important to remember are the Africans who….