Magnetic Flip Drives Flare-Up of Monster Black Hole

Explore the unusual eruption of 1ES 1927+654, a galaxy located 236 million light-years away in the constellation Draco. A sudden reversal of the magnetic field around its million-solar-mass black hole may have triggered the outburst.

Credit: NASA’s Goddard Space Flight Center

Music: "Water Dance" and "Alternate Worlds" from Universal Production Music

Watch this video on the NASA Goddard YouTube channel.

Complete transcript available.

En español. Explora la inusual erupción de 1ES 1927+654, una galaxia ubicada a 236 millones de años luz de distancia en la constelación Draco. Una inversión repentina del campo magnético alrededor de su agujero negro, que posee una masa equivalente a millones de soles, pudo haber desencadenado el estallido.

Crédito: Centro de Vuelo Espacial Goddard de la NASA

This sequence illustrates various features of the galaxy's outburst, from its dramatically increased brightness in visible and UV to the loss and recovery of the corona, the source of high-energy X-rays.

Credit: NASA’s Goddard Space Flight Center

This illustration shows the accretion disk, corona (pale, conical swirls above the disk), and supermassive black hole of active galaxy 1ES 1927+654 before its recent flare-up.

Credit: NASA/Sonoma State University, Aurore Simonnet

This cartoon illustrates the magnetic reversal interpretation of the eruption at the center of the active galaxy known as 1ES 1927+654. Yellow lines depict the initial direction of the magnetic field, while orange lines indicate the reversed polarity. In late December 2017, the accretion disk brightened up by to 100 times in visible light, a result of increased “feeding” by the supermassive black hole – possibly triggered by a change of magnetic polarity in the outer disk. In August 2018, the reversed magnetic flux reached the inner accretion disk, causing the corona – and the high-energy X-rays it produced – to vanish. In October 2018, the X-rays returned, indicating that the corona had been rebuilt, but it gradually became more intense, reaching a peak in November 2019. During this period, the magnetic field strengthened in its new orientation, and a higher flow of matter could reach the black hole. Present day: The black hole has settled into its 2011 pre-eruption state, but with a magnetic field of opposite polarity.

Credit: NASA's Goddard Space Flight Center/Jay Friedlander

Animated version of the above.

Credit: NASA's Goddard Space Flight Center/Jay Friedlander