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Atlas 3D (ATLAS3D or ATLAS3D) was a survey of 260 galaxies within 42 Mpc, observing them with multiple filters and telescopes, covering radio-astronomy through visible light. Follow-ups with simulations were carried out to explain the observed stellar kinematics. Study that characterizes these nearer galaxies provides a basis for assumptions regarding more distant galaxies.
Results were published in 2011 based upon observations over a decade or so. Among the telescopes whose observations helped defined the sample, and/or carried out follow-up observations, are Arecibo (ALFALFA data), WHT (using the SAURON integral field spectrograph), WSRT, the IRAM 30m, INT, and CFHT.