Cosmic chameleon: Complex behavior of BL Lacertae blazar escapes established classification

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What’s a blazar? This type of galaxy is more diverse than we thought

A galaxy sitting in the background of the Lizard constellation is emitting a narrow jet of ionised matter near the speed of light. But the radiation spectrum of the object has astronomers scratching their heads. Blazar BL Lacertae is an active galaxy, emitting from its core a plasma jet that is directed towards Earth (artistic image). Credit: NASA/JPL-Caltech. The object in question is BL Lacertae, first discovered in 1929. It was initially thou…

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Cosmic chameleon: Complex behavior of BL Lacertae blazar escapes established classification

Blazars are active galaxies that emit narrow jets of ionized matter from their centers, aimed towards Earth. Depending on properties of the electromagnetic radiation emitted by the jets, astronomers divide such objects into different, clearly defined classes. However, with the BL Lacertae blazar, located in the background of the Lizard constellation, things turn out to be not quite so simple.

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A study of a supermassive black hole, known as BL Lizard's blazar, found it to have very strange behavior. For details, read ᐅ TSN.ua (news 1+1)