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 (blā′zär′, -sär′, -zər, -sər)
A compact, extremely bright, active galactic nucleus characterized by strong and rapid changes in the intensity of electromagnetic radiation emitted over a very broad range of frequencies ranging from radio waves to gamma rays. Although the source of blazar energy is the material surrounding a super-massive black hole at the galaxy center, much of the blazar luminosity originates in powerful jets of material moving along the line of sight toward Earth at near light speed.

[Coined by Edward A. Spiegel (1931-2010), American astronomer, as a blend (influenced by blaze) of BL Lac object, a type of blazar once thought to be a variable star (after BL Lacertae, a blazar in Lacerta), and quasar.]


a type of galaxy supplying more radiation than a quasar
References in periodicals archive ?
Blazar (2015) found that lessons that received high scores in the grouping of the three dimensions Richness of the Mathematics, Working With Students and Mathematics, and Common Core Aligned Student Practices were positively correlated with student outcomes, whereas the dimension Errors, Imprecision, and Lack of Clarity had a negative correlation with student outcomes.
Hikers will learn about habitat restoration from the organization's stewardship director, Jason Blazar.
A blazar is in a group of those galaxies with a supermassive black hole that is shooting out a jet of matter in the direction of Earth, lighting up the whole thing for our planet to see, (https://images.
One possible source for energetic cosmic neutrinos is blazars, but a previous attempt to pair two other IceCube blips with blazar flares was inconclusive.
The finding shows that whatever is driving blazar jets operates right near the central black hole, which can weigh in at millions or billions of times the mass of the sun.
What makes a blazar so bright is that one of these particle jets happens to be aimed almost straight at us.
Title: Long-term monitoring of the optical polarization in the TeV blazar PKS 2155-304
The galaxy's gravity bends the light into different paths, so astronomers see the background blazar as dual images.
Astronomers classify B0218+357 as a blazar -- a type of active galaxy noted for its intense emissions and unpredictable behavior.