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SCUBA-2 Image Gallery

SCUBA-2 Image Gallery

    Click on each image to see the full size version.

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The Whirlpool Galaxy

A composite image of the Whirlpool Galaxy (also known as M51). The green image is from the Hubble Space Telescope and shows the optical wavelength. The submillimetre light detected by SCUBA-2 is shown in red (850 microns) and blue (450 microns). The Whirlpool Galaxy lies at an estimated distance of 31 million light years from Earth in the constellation Canes Venatici.
Credit: Joint Astronomy Centre, University of British Columbia and NASA/HST (STScI).

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Different Views of the Moon

This is the Moon seen with SCUBA-2, at wavelengths of 0.45 mm (top left) and 0.85 mm (top right). The bottom left shows a combination of the SCUBA-2 images which give the temperature of the lunar surface, where red is warmest. At the lower right is a visible light image taken at the same time.

While the optical image shows sunlight reflected from the surface of the Moon, the submillimetre emission detected by SCUBA-2 is being radiated from the Moon itself. The SCUBA-2 temperature map shows that the unilluminated side of the Moon is colder (green and blue), with the coldest region (blue) being where the Sun last heated the surface. The Moon was in "waxing gibbous" phase, meaning that it is on its way to becoming full.
Credit: University of British Columbia, Mike Kozubal.

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A Stellar Nursery

The DR21 region is a busy star forming region. The left hand panel shows the SCUBA-2 850 micron image while the right-hand panel is a close up reion where the 850 microns data has been overlayed on a UKDISS infrared image. The peak of the submillimetre light seen with SCUBA-2 lies between the lobes of a massive outflow seen in the infrared. DR21 lies around 10000 light years away within our galaxy in the constellation of Cygnus.
Credit: Joint Astronomy Centre.

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NGC7331 at 5 wavelengths. From left: Herschel 250 microns, Herschel 350 microns, SCUBA-2 450 microns, Herschel 500 microns, SCUBA-2 850 microns. NGC7331 is a spiral galaxy that lies about 50 million light years away in the constellation Pegasus. The central ring-link structure is clearly visible in the submillimtre dust emission.
Credit: Joint Astronomy Centre, Herschel (KINGFISH consortium)

Click here for a larger image! Star-Forming Clouds in the Milky Way

This image shows a SCUBA-2 map of part of our Milky Way galaxy at 0.85 mm (top), compared with an infrared image from the United Kingdom Infrared Telescope (bottom). Notice how the dark patches and filaments in the bottom image show up as bright areas in the top image. The dust in these areas obscures optical and infrared light from the stars behind them, making them appear dark. SCUBA-2 detects the heat from this dust so that they appear bright at submillimetre wavelengths. The brightest regions mark where new stars are forming, sometimes also showing a red glow in the infrared image as the stars clear away their dusty surroundings.
Credit: Joint Astronomy Centre.

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Jupiter and Four Moons

Jupiter and the Galilean moons seen with SCUBA-2. Rather than seeing the sunlight reflected off the surface of these moons, such as Galileo did 400 years ago, this SCUBA-2 image shows the energy being radiated from the moons themselves.
Credit: University of British Columbia.

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SCUBA-2 on the JCMT

SCUBA-2 mounted on the James Clerk Maxwell Telescope. The instrument weighs 4.5 tonnes and is 3 m high. The massive blue box contains the camera and keeps it cold at only 0.1 degrees C above absolute zero (-273 degrees C). Submillimetre light from the telescope enters through a small window on the left-hand side (behind the white bars) and is directed onto the two sets of detectors.
Credit: Joint Astronomy Centre

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The James Clerk Maxwell Telescope on Mauna Kea in Hawaii. With a diameter of 15m the JCMT is the largest telescope in the world designed specifically to operate at submillimetre wavelengths.
Credit: Joint Astronomy Centre

Contact: JAC outreach. Updated: Tue Dec 6 14:43:46 HST 2011

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