A1689-zD1, a small galaxy in a big space (IMAGE)

National Radio Astronomy Observatory

A1689-zD1, a small galaxy in a big space

Caption

This composite combines radio images of A1689-zD1, captured using the Atacama Large Millimeter/submillimeter Array (ALMA), shown in orange/red, with optical images from the Hubble Space Telescope (HST), shown in blue/white. In the context of its surroundings, it becomes clear how A1689-zD1 managed to “hide out” behind Abell 1689, and why gravitational lensing— the magnification of the young galaxy— are critical to studying its behaviors and processes.

Credit

ALMA (ESO/NAOJ/NRAO)/ H. Akins (Grinnell College), B.Saxton (NRAO/AUI/NSF)

Usage Restrictions

Credit must be given to the creator. Adaptations must be shared under the same terms.

License

CC BY-SA

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