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The CALIFA Survey will provide detailed information about 600 galaxies in the local Universe. This image shows two examples: The quiescent elliptical galaxy NGC 6125 (top) and the spiral galaxy NGC 2916, in which stars are still forming (bottom). For each galaxy, an image taken by an earlier survey (SDSS) is seen on the left. The image on the right shows CALIFA data about whether or not that part of the galaxy is moving towards us (blueish colors) or away from us (reddish colors). The elliptical galaxy is rotating very gently. In the spiral galaxy, on the other hand, the stars rotate with speeds of up to 180 kilometres per second or more.
Credit: CALIFA-Team / M. Lyubenova (MPIA)
(373 KB, 1200 x 1273 pixels)
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