Antennae Galaxies, ALMA-HST image

Antennae Galaxies, ALMA-HST image

C011/9915 Rights Managed

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This image is part of the sequence space: ALMA test images


Restrictions: This image may not be used by or to promote the arms, nuclear power or tobacco industries or any religious organisation, or in any discriminatory way, or to imply the endorsement by ESO of any product, service or activity

Caption: Antennae Galaxies (NGC 4038 and NGC 4039), combined ALMA (orange) and HST (blue) image. ALMA (Atacama Large Millimeter/sub-millimeter Array) is an array of 66 radio telescopes in Chile's Atacama desert that combines data by interferometry. HST is the Hubble Space Telescope. Test ALMA observations, begun in 2011, included this pair of colliding spiral galaxies located 70 million light years away in the constellation of Corvus. This view was obtained with only 12 antennas, using ALMA bands 3, 6 and 7, detecting carbon monoxide in molecular clouds where stars are forming. As more of the array is used, image quality will improve. For ALMA test images, see C011/9913-15.

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Keywords: 2011, 2012, 21st century, alma, antennae galaxies, astronomical, astronomy, astrophysical, astrophysics, atacama large millimeter array, atacama large millimeter/sub-millimeter array, atacama large sub-millimeter array, band 3, band 6, band 7, carbon monoxide, cold hydrogen, colliding galaxies, colliding galaxy, combined, composite, corvus, eso, european southern observatory, galactic, galaxy, hst, hubble space telescope, merging galaxy, millimetre, millimetre/sub-millimetre, molecular cloud, molecular clouds, molecular hydrogen, nebula, nebulae, ngc 4038, ngc 4039, optical, radio, radio telescope, space, star formation, starbirth, stellar evolution, stellar nurseries, stellar nursery, sub-millimetre, submillimeter, submillimetre, test image, universe, visible

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