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BLAST (telescope)

BLAST
BLAST on flightline kiruna 2005.jpeg
BLAST hanging from the launch vehicle in Esrange near Kiruna, Sweden before launch in June 2005
Alternative names Balloon-borne Large Aperture Submillimeter Telescope
Wavelength 250, 350, 500 µm (1,200,000, 860,000, 600,000 MHz)
Telescope style radio telescope, balloon-borne telescope Edit this on Wikidata
Diameter 2 m (6 ft 7 in)
Website sites.northwestern.edu/blast/
Commons page
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The Balloon-borne Large Aperture Submillimeter Telescope (BLAST) is a submillimeter telescope that hangs from a high-altitude balloon. It has a 2-meter primary mirror that directs light into bolometer arrays operating at 250, 350, and 500 µm. These arrays were developed for the SPIRE instrument on the Herschel Space Observatory. The project is carried out by a multi-university consortium headed by the University of Pennsylvania and which also includes University of Toronto, Brown University, the University of Miami, the University of British Columbia, JPL, INAOE, and Cardiff University. The third flight of BLAST in Antarctica was a scientific success, but much of telescope was destroyed after landing. It has been rebuilt for a flight from Antarctica in the 2010-11 austral summer. This most recent flight of BLAST (aka BLAST-Pol) has a polarimeter to observe the polarized light from star forming cores. The light is polarized due to magnetic fields. It is thought that the magnetic fields inhibit the collapse of the cores. The Herschel Space Observatory does not have a polarimeter.

BLAST's primary science goals are:

Filmmaker Paul Devlin made a documentary film titled BLAST! about the project. Paul is the brother of cosmologist Mark Devlin, Principal Investigator of the BLAST project.


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