Prototype for long wavelength array sees first light

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Commissioning observations made this past fall by the LWDA show its all sky imaging capability. In this frame from the LWDA first light movie emission from the bright sources Sagittarius A at the center of our galaxy Cassiopeia A and the black-hole p ...
Commissioning observations made this past fall by the LWDA show its all sky imaging capability. In this frame from the LWDA first light movie, emission from the bright sources Sagittarius A at the center of our galaxy, Cassiopeia A, and the black-hole powered radio galaxy, Cygnus A, are all clearly visible. Cassiopeia A, the strongest discrete radio source visible in the sky, is a remnant of a massive star that exploded in a supernova over 300 years ago. Credit: Tracy Clarke, Interferometrics, Inc.

Astronomers at the Naval Research Laboratory (NRL) have produced the first images of the sky from a prototype of the Long Wavelength Array (LWA), a revolutionary new radio telescope to be constructed in southwestern New Mexico. The images show emissions from the center of our Galaxy, a supermassive black hole, and the remnant of a star that exploded in a supernova over 300 years ago.


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