UKIRT Infrared Images of the Four Target Galaxies. (IMAGE)

University of California - Santa Barbara

UKIRT Infrared Images of the Four Target Galaxies.

Caption

UKIRT infrared images of the four target galaxies show them in near-infrared color, where the images at different infrared wavelengths are assigned to represent red, green and blue colors. Observations with the Keck Interferometer have resolved the inner structure of the bright nucleus in all the four galaxies. The inferred ring-like structure obtained for NGC 4151 at the top-left is depicted in the top-right panel. The ring radius is 0.13 light years, corresponding to an extremely small ~0.5 milli-arcsecond angular size on the sky. The distance to each galaxy is indicated in million light-years, together with the redshift (z) of each galaxy.

Credit

M. Kishimoto, MPIfR

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