Radio Galaxy Zoo Talk

Collection: Core Jets

by axrldn

A radio source consisting of two or (rarely) more components, with the brightest being at one edge of the source and coinciding with the infrared galaxy. It looks similar to a #headTail source, but the radio emission is clumpy rather than smooth outside the core. These are most likely #hourglass radio sources in which one side of the radio source (the one we can see) points almost directly towards the Earth, while the other side is invisible because it is travelling very fast in a direction away from us. This effect is known as Doppler boosting, and it is a consequence of the jets in radio sources travelling at close to the speed of light.

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