The Balloon-borne Large Aperture Submillimeter Telescope: BLAST

doi:10.1086/588541

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E. Pascale et al. 2008 ApJ 681 400 doi:10.1086/588541

The Balloon-borne Large Aperture Submillimeter Telescope: BLAST

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E. Pascale^1,2, P. A. R. Ade², J. J. Bock^3,4, E. L. Chapin⁵, J. Chung^1,5, M. J. Devlin⁶, S Dicker⁶, M. Griffin², J. O. Gundersen⁷, M. Halpern⁵, P. C. Hargrave², D. H. Hughes⁸, J. Klein⁶, C. J. MacTavish¹, G. Marsden⁵, P. G. Martin^9,10, T. G. Martin¹, P. Mauskopf², C. B. Netterfield^1,10, L. Olmi^11,12, G. Patanchon^5,13, M. Rex⁶, D. Scott⁵, C. Semisch⁶, N. Thomas⁷, M. D. P. Truch¹⁴, C. Tucker², G. S. Tucker¹⁴, M. P. Viero¹⁰ and D. V. Wiebe¹

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enzo@physics.utoronto.ca

¹ Department of Physics, University of Toronto, Toronto, ON M5S 1A7, Canada
² Department of Physics and Astronomy, Cardiff University, Cardiff CF24 3AA, UK
³ Jet Propulsion Laboratory, Pasadena, CA 91109-8099
⁴ Observational Cosmology, MS 59-33, California Institute of Technology, Pasadena, CA 91125
⁵ Department of Physics and Astronomy, University of British Columbia, Vancouver, BC V6T 1Z1, Canada
⁶ Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104
⁷ Department of Physics, University of Miami, Coral Gables, FL 33146
⁸ Instituto Nacional de Astrofísica Óptica y Electrónica (INAOE), 72000 Puebla, Mexico
⁹ Canadian Institute for Theoretical Astrophysics, University of Toronto, Toronto, ON M5S 3H8, Canada
¹⁰ Department of Astronomy and Astrophysics, University of Toronto, Toronto, ON M5S 3H4, Canada
¹¹ Istituto di Radioastronomia, I-50125 Florence, Italy
¹² Physics Department, University of Puerto Rico, Rio Piedras Campus, San Juan, PR 00931
¹³ Laboratoire APC, 75205 Paris, France
¹⁴ Department of Physics, Brown University, Providence, RI 02912

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Abstract References Cited By

The Balloon-borne Large Aperture Submillimeter Telescope (BLAST) is a suborbital surveying experiment designed to study the evolutionary history and processes of star formation in local galaxies (including the Milky Way) and galaxies at cosmological distances. The BLAST continuum camera, which consists of 270 detectors distributed between three arrays, observes simultaneously in broadband (30%) spectral windows at 250, 350, and 500 μm. The optical design is based on a 2 m diameter telescope, providing a diffraction-limited resolution of 30^'' at 250 μm. The gondola pointing system enables raster mapping of arbitrary geometry, with a repeatable positional accuracy of ~30^''; postflight pointing reconstruction to lesssim

5^'' rms is achieved. The onboard telescope control software permits autonomous execution of a preselected set of maps, with the option of manual override. In this paper we describe the primary characteristics and measured in-flight performance of BLAST. BLAST performed a test flight in 2003 and has since made two scientifically productive long-duration balloon flights: a 100 hr flight from ESRANGE (Kiruna), Sweden to Victoria Island, northern Canada in 2005 June; and a 250 hr, circumpolar flight from McMurdo Station, Antarctica, in 2006 December.

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