Home > Astronomy, Astrophysics, Black Holes, Cosmology, General Astronomy, Quasars > Against All Odds: Astronomers Baffled By Discovery Of Rare Quasar Quartet

Against All Odds: Astronomers Baffled By Discovery Of Rare Quasar Quartet


Image: Arrigoni-Battaia & Hennawi / MPIA

Image: Arrigoni-Battaia & Hennawi / MPIA

Using the W.M. Keck observatory in Hawaii, a group of astronomers led by Joseph Hennawi of the Max Planck Institute for Astronomy have discovered the first quadruple quasar: four rare active black holes situated in close proximity to one another. The quartet resides in one of the most massive structures ever discovered in the distant universe, and is surrounded by a giant nebula of cool dense gas. Either the discovery is a one-in-ten-million coincidence, or cosmologists need to rethink their models of quasar evolution and the formation of the most massive cosmic structures. The results are being published in the May 15, 2015 edition of the journal Science.

Hitting the jackpot is one thing, but if you hit the jackpot four times in a row you might wonder if the odds were somehow stacked in your favor. A group of astronomers led by Joseph Hennawi of the Max Planck Institute for Astronomy have found themselves in exactly this situation. They discovered the first known quasar quartet: four quasars, each one a rare object in its own right, in close physical proximity to each other.

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