File:Boomerang nebula - ALMA-HST-- Potw1724a.tif
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[edit]DescriptionBoomerang nebula - ALMA-HST-- Potw1724a.tif |
English: True shape of the Boomerang
This Picture of Week shows the Boomerang Nebula, a protoplanetary nebula, as seen by the Atacama Large Millimeter/submillimeter Array (ALMA). The background purple structure, as seen in visible light with the NASA/ESA Hubble Space Telescope, shows a classic double-lobe shape with a very narrow central region. ALMA’s ability to see the cold molecular gas reveals the nebula’s more elongated shape, in orange. Since 2003 the nebula, located about 5000 light-years from Earth, has held the record for the coldest known object in the Universe. The nebula is thought to have formed from the envelope of a star in its later stages of life which engulfed a smaller, binary companion. It is possible that this is the cause of the ultra-cold outflows, which are illuminated by the light of the central, dying star. ALMA looked at the nebula’s central dusty disc and the outflows further out, which span a distance of almost four light-years across the sky. These outflows are even colder than the cosmic microwave background, reaching temperatures below –270 °C. The outflows are also expanding at a speed of 590 000 kilometres per hour. Link NRAO press release Credit: ALMA (ESO/NAOJ/NRAO)/R. Sahai Coordinates Position (RA): 12 44 46.10 Position (Dec): -54° 31' 12.87" Field of view: 0.37 x 0.37 arcminutes Orientation: North is 0.1° left of vertica Colours & filters Band Wavelength Telescope Optical V 606 nm Hubble Space Telescope ACS Radio 12CO 880 μm Atacama Large Millimeter/submillimeter Array Band 7 Optical V 606 nm Hubble Space Telescope ACS. |
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Date | 12 June 2017, 06:00 (Release) | ||||
Source | http://www.eso.org/public/images/potw1724a/ http://www.eso.org/public/archives/images/original/eso1724a.tif | ||||
Author |
Credit: ALMA (ESO/NAOJ/NRAO)/R. Sahai |
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current | 21:43, 24 June 2017 | ![]() | 1,762 × 1,762 (8.89 MB) | Fabian RRRR (talk | contribs) | wrong file |
06:00, 12 June 2017 | ![]() | 1,762 × 1,762 (17.82 MB) | Fabian RRRR (talk | contribs) | =={{int:filedesc}}== {{Information |description={{en|1=True shape of the Boomerang This Picture of Week shows the Boomerang Nebula, a protoplanetary nebula, as seen by the Atacama Large Millimeter/submillimeter Array (ALMA). The background purple str... |
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Compression scheme | Uncompressed |
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Orientation | Normal |
Number of components | 3 |
Number of rows per strip | 64 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Data arrangement | chunky format |