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  • Other Sources  (2)
  • 1990-1994  (2)
  • 1985-1989
  • 1925-1929
  • 1990  (2)
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  • 1990-1994  (2)
  • 1985-1989
  • 1925-1929
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  • 1
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    Unknown
    Personal communications: An extension to the mobile satellite (1990)
    In:  CASI
    Details
    Publication Date: 2013-08-31
    Description: As time progresses, customer demands become far more universal, involving integrated, simple to operate, cost effective services, with technology virtually transparent to the operator. Industry will be in a position of providing the necessary services to meet the subscribers' needs. Our resource based industries, transportation services, and utilities in the more rural and unserviced areas will require quality and affordable services that can only be supplied via satellite. One answer to these needs will be one- and two-way interoperable data messaging.
    Keywords: COMMUNICATIONS AND RADAR
    Type: JPL, California Inst. of Tech., Proceedings of the 2nd International Mobile Satellite Conference (IMSC 1990); p 51-55
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    Galactic neutron stars and gamma-ray bursts (1990)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: The association of the gamma-ray burst phenomenon with Galactic neutron stars is investigated statistically, and the distance to presently observable gamma-ray bursts is constrained. This is done by calculating the spatial distribution and kinematic properties of a sample of Population I neutron stars and comparing their properties to those of observed gamma-ray bursts. Both brightness distribution and angular distribution on the celestial sphere are employed. Current observations suggest negligible correlation on small angular scales, large-scale isotropy, and a radial distribution that is approximately uniform to the distances currently observed. It is concluded that the distribution of Population I neutron stars is consistent with current observations if gamma-ray bursts occur continuously throughout the neutron star lifetime and if the current sampling depth is at least about 150 pc but not more than roughly 2 kpc.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal, Part 1 (ISSN 0004-637X); 348; 625-633
    Format: text
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    NASA TECHNICAL REPORTS
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