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  • Other Sources  (4)
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  • 1
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    A composite large-scale CO survey at high galactic latitudes in the second quadrant (1993)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: Surveys undertaken in the 2nd quadrant of the Galaxy with the CfA 1.2 m telescope have been combined to produce a map covering about 620 sq deg in the 2.6 mm CO(J = 1 - 0) line at high galactic latitudes. There is CO emission from molecular 'cirrus' clouds in about 13 percent of the region surveyed. The CO clouds are grouped together into three major cloud complexes with 29 individual members. All clouds are associated with infrared emission at 100 micron, although there is no one-to-one correlation between the corresponding intensities. CO emission is detected in all bright and dark Lynds' nebulae cataloged in that region; however not all CO clouds are visible on optical photographs as reflection or absorption features. The clouds are probably local. At an adopted distance of 240 pc cloud sizes range from O.1 to 30 pc and cloud masses from 1 to 1600 solar masses. The molecular cirrus clouds contribute between 0.4 and 0.8 M solar mass/sq pc to the surface density of molecular gas in the galactic plane. Only 26 percent of the 'infrared-excess clouds' in the area surveyed actually show CO and about 2/3 of the clouds detected in CO do not show an infrared excess.
    Keywords: ASTROPHYSICS
    Type: Astronomy and Astrophysics (ISSN 0004-6361); 268; 1; p. 265-275.
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Investigation to determine the effects of long-term bed rest on G-tolerance and on psychomotor performance Final report (1966)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Prolonged bed rest effects on gravity tolerance and psychomotor performance of humans
    Keywords: BIOSCIENCES
    Type: NASA-CR-62073
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    Technique increases storage capacity in camera tube target (1968)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Technique increases the signal current, where direct beam readout is used, in Secondary Electron Conduction /SEC/ camera tubes. Increasing the storage capacity and therefore the dynamic range of the SEC target permits satisfactory operation at reduced frame rates.
    Keywords: ELECTRONIC COMPONENTS AND CIRCUITS
    Type: MSC-11599
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 4
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    A survey of formaldehyde in high Galactic latitudes (1987)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: The discovery of formaldehyde (H2CO) in four out of 15 CO-clouds observed in high Galactic latitudes is reported. For one of these a velocity-integrated formaldehyde map is presented. The clouds are clearly connected to CO clouds described by de Vries et al. (1986), to Lynds bright and dark nebulae (Lynds, 1963), and to the Galactic infrared cirrus (Low et al., 1984). The distribution of CO and H2CO clouds is compared. The depths of the l(10-11)H2CO lines show no correlation to the integrated J = l-0(C-12)O line intensities.
    Keywords: ASTROPHYSICS
    Type: Astronomy and Astrophysics (ISSN 0004-6361); 179; 1-2
    Format: text
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    NASA TECHNICAL REPORTS
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