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  • 1
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    SOFIA: Stratospheric Observatory for Infrared Astronomy (1993)
    In:  Other Sources
    Details
    Publication Date: 2011-08-24
    Description: SOFIA, (Stratospheric Observatory for Infrared Astronomy) is a planned 2.5 meter telescope to be installed in a Boeing 747 aircraft and operated at altitudes from 41,000 to 46,000 feet. It will permit routine measurement of infrared radiation inaccessible from the ground-based sites, and observation of astronomical objects and transient events from anywhere in the world. The concept is based on 18 years of experience with NASA's Kuiper Airborne Observatory (KAO), which SOFIA would replace.
    Keywords: ASTRONOMY
    Type: Advances in Space Research (ISSN 0273-1177); 13; 12; p. (12)549-(12)556
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Far-infrared polarimetry (1995)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: Airborne observations with the The University of Chicago polarimeter, Stokes (Platt et al. 1991), have produced maps of far infrared polarization over large areas in molecular clouds. Subsequent papers will discuss the implications of the results concerning the magnetic fields of individual objects. Our purpose here is to show a broad sample of the results and to point out certain general characteristics of the polarized emission.
    Keywords: ASTRONOMY
    Type: Astronomical Society of the Pacific, Airborne Astronomy Symposium on the Galactic Ecosystem: From Gas to Stars to Dust, Volume 73; p 97-104
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    100-micron array polarimetry from the Kuiper Airborne Observatory - Instrumentation, techniques, and first results (1991)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: The University of Chicago far-infrared array polarimeter, 'STOKES', is the first multiple-beam polarimeter for far-infrared astronomy. Observations are made from the NASA Kuiper Airborne Observatory. Two orthogonal components of linear polarization are detected simultaneously by corresponding pairs of bolometers in two 32-detector arrays. Novel observing and data-analysis techniques are used to overcome the inherent difficulties of array polarimetry. Results from the first observing flights with the new instrument are reported for the molecular clouds W3 and W51. The measurements show that the magnetic-field structure in both clouds is nonuniform on the scale of 0.5-1.5 pc. This is consistent with molecular line and Zeeman observations that indicate the presence of turbulent velocities and significant small-scale structure. Preliminary results from the second flight series have yielded approximately 40 new measurements in the Sgr A complex. These results indicate that modifications made since the first flights have significantly improved the performance of STOKES.
    Keywords: ASTRONOMY
    Type: Astronomical Society of the Pacific, Publications (ISSN 0004-6280); 103; 1193-121
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    Far-infrared and submillimeter photometric mapping of spiral galaxies in the Virgo cluster (1989)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: Three 'normal' Virgo cluster spiral galaxies, NGC 4254, NGC 4501, and NGC 4654, were mapped at 160 and 360 micron wavelengths with arrays of 45 arcsec beams using the NASA Kuiper Airborne Observatory and the NASA Infrared Telescope Facility. Another galaxy, NGC 4321, was mapped at 160 microns. Approximately one-third of the total flux from the galaxies is emitted at wavelengths longer than 12 microns. The maps show centrally peaked, but spatially extended luminosity distributions consistent with disk material.
    Keywords: ASTRONOMY
    Type: Astrophysical Journal, Part 1 (ISSN 0004-637X); 337; 650-657
    Format: text
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    NASA TECHNICAL REPORTS
  • 5
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    SOFIA: A Stratospheric Observatory for Infrared Astronomy (1991)
    In:  CASI
    Details
    Publication Date: 2019-08-14
    Description: SOFIA is described as it was originally (May 1988) for the Space and Earth Sciences Advisory Committee (SESAC). The format and questions were provided by SESAC as a standard for judging the merit of potential U.S. space science projects. This version deletes Section IIF, which addressed development costs of the SOFIA facility. SOFIA's unique astronomical potential is described and it is shown how it complements and supports existing and planned facilities.
    Keywords: ASTRONOMY
    Type: NASA-TM-103840 , A-91076 , NAS 1.15:103840
    Format: application/pdf
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