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  • 1970-1974  (5)
  • 1973  (5)
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  • 1970-1974  (5)
Year
  • 1
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    Ground-based flare studies at Sacramento Peak (1973)
    In:  CASI
    Details
    Publication Date: 2006-03-26
    Description: The structure of an isolated solar flare point observed by vacuum telescope and multichannel spectrophotometer is considered. The tiny bright spot in H alpha photos lasted less than 30 seconds and coincided with a Type-III solar burst; a soft X-ray burst peaked at the time of this event. The small scale structure of the flare point exhibited in miniature the characteristics of a true flare event.
    Keywords: SPACE RADIATION
    Type: Significant Accomplishments in Sci.; p 58-62
    Format: text
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 2
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    An emission-line object found in the Orion nebula (1973)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: A small, low-temperature, high-density object has been found superimposed upon the Orion nebula. The observed spectrum suggests it is a Herbig-Haro object.
    Keywords: SPACE SCIENCES
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    The OSO-7 year of discovery. (1973)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: The OSO 7 scientific findings reveal hitherto unknown processes in solar flares and some remarkable properties of the corona. Gamma-ray emission lines provide evidence of nuclear reactions in solar flares. The measurements were made during the large flares of Aug. 4 and 7, 1972. The data clearly show line emission at energies of about 0.5 MeV (million electron volts) and 2.2 MeV, with weaker enhancements at 4.4 MeV and 6.1 MeV. It appears that the nuclear processes in flares as revealed by OSO 7 are probably thermal reactions. Some flare electron streams also produce bursts of hard X rays. Holes and poles in the corona, and coronal streams and the interplanetary blast were studied.
    Keywords: SPACE SCIENCES
    Type: Sky and Telescope; 45; Jan. 197
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    Kohoutek - A great comet coming. (1973)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Passing inside the earth's orbit in late November, the comet Kohoutek will travel through the inner solar system during a unique period in the history of the space program, when Skylab and Mariner Venus-Mercury are in operation and the new C-141 Airborne Infrared Observatory is ready for flight. It is planned to investigate comprehensively the nature and evolution of the coma and tails of the comet. The detailed goals of the investigation include the identification of the parent molecules of the gases observed in comets, the determination of the processes that break down the parent molecules, the study of the physical nature of transient events in the comet, and the measurement of the solar-wind velocity in the inner solar system.
    Keywords: SPACE SCIENCES
    Type: Astronautics and Aeronautics; 11; Oct. 197
    Format: text
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    NASA TECHNICAL REPORTS
  • 5
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    Astronomical observations with an SEC vidicon system. (1973)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: Description of the design and operation of an SEC vidicon camera system, and review of some of the astronomical observations performed with it. Following a discussion of the main system and instrumentation features and a delineation of present and future software tasks, the preliminary series of observations obtained in conjunction with the 36-inch telescope at Kitt Peak National Observatory is briefly surveyed. These observations include (1) exposures on the Orion Nebula through various narrow-band interference filters, and (2) exposures on the galaxy Messier 82 in white light and with medium band filters.
    Keywords: SPACE SCIENCES
    Type: Astronomical observations with television-type sensors Symposium; May 15, 1973 - May 17, 1973; Vancouver, British Columbia; Canada
    Format: text
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    NASA TECHNICAL REPORTS
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