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    changing-look blazar tagged posts

    Astronomers discover a ‘Changing-look’ Blazar

    June 11, 2021, Categories  Astronomy/Space

    Sloan Digital Sky Survey archival image from March 2004 (top) and the image from the authors' observation campaign of the blazar, B2 1420+32, taken in January 2020 using ASAS-SN (bottom). The blazar brightness increased by a factor of 100.
    Sloan Digital Sky Survey archival image from March 2004 (left) and the image from the authors’ observation campaign of the blazar, B2 1420+32, taken in January 2020 using ASAS-SN (right). The blazar brightness increased by a factor of 100.

    Astronomers describe a ‘changing-look’ blazar — a powerful active galactic nucleus powered by supermassive blackhole at the center of a galaxy. A University of Oklahoma doctoral student, graduate and undergraduate research assistants, and an associate professor in the Homer L. Dodge Department of Physics and Astronomy in the University of Oklahoma College of Arts and Sciences are lead authors on a paper describing a “changing-look” blazar – a powerful active galactic nucleus powered by supermassive blackhole at the center of a galaxy...

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