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Mayo 02, 2006

nu, mokslai

rašau rašinėlį.
variable star of the month:
So what are blazars and BL Lac objects? You could be forgiven for thinking it refers to a heavy metal punk band. But Blazars are in reality quasars with their jets pointed straight at us. Take a punk rocker's spiked head. As he thrashes on stage he throws his head up, down, and sideways. The spikes precess, or change their pointing direction. Eventually one of those points is aimed straight at you in the audience. According to current models, that would be a blazar. But instead of heavily died hair, its high-energy photons emitted through synchotron radiation, following the spirals of an intense magnetic field. The source of the magnetism is something a lot denser than a punk rocker's cranium: a million to billion solar mass black hole.

Posted by kpmg at Mayo 2, 2006 04:13 PM

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