Research investigates variability of the blazar Mrk 421

Astronomers from Switzerland and Germany have performed multiwavelength observations of a high-synchrotron-peaked blazar known as Mrk 421.

Results of this observational campaign provide more insights into the variability of gamma-ray emission from this source.

Blazars are very compact quasars associated with supermassive black holes at the centers of active, giant elliptical galaxies.

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Source

Credit: Sloan Digital Sky Survey

Sloan Digital Sky Survey image of blazar Markarian 421.

Source / Image Courtesy

Blazars are the most luminous and energetic objects in the known universe.