First Images from ALMA Telescope: Hidden Star-Formation in Antennae Galaxies Revealed

ScienceDaily (Oct. 3, 2011) — In celebration of the start of the Atacama Large Millimeter/submillimeter Array's (ALMA) Early Science observations, the National Radio Astronomy Observatory (NRAO) has released an image of a merging pair of galaxies as seen by the growing ALMA telescope. The detailed views of star-formation in the Antennae Galaxies confirm that this new telescope, while far from completed, and with only a fraction of its ultimate imaging capability, will surpass all others of its kind.The image gives but a hint of ALMA's promise to make unprecedented contributions to understanding the once-hidden activities of the early Universe."We chose the impressive interacting system called the Antennae galaxies as a test subject," said Dr. Alison Peck, an astronomer from the NRAO who is serving in Chile as ALMA Deputy Project Scientist during its years of careful construction and rigorous testing, "because it is in the process of undergoing the type of spectacular, violent merger that many galaxies may have undergone since their formation, but that we can rarely catch in action."