Equatorial X-rays and their effect on the lower mesosphere

Details Equatorial X-rays and their effect on the lower mesosphere Equatorial X-rays and their effect on the lower mesosphere

Aug 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976isea.symp.....g&link_type=abstract

Presented at 5th Intern. Symp. on Equatorial Aeronomy (ISEA), Townsville, Australia, Aug. 1976

Mathematics

Logic

Mesosphere, Tropical Regions, X Ray Sources, Balloon-Borne Instruments, Bremsstrahlung, Electrons, Meteorological Instruments, Rocket-Borne Instruments, Scintillation Counters, Thermosphere

Scientific paper

On the night of May 23/24, 1975, a sequence of rocket and balloon experiments was launched from Chilca Base, Peru (12.5 deg S, 76.8 deg W, magnetic dip = - 0.7 deg). Detailed analysis and comparisons of the data yielded the first direct measurement of lower mesospheric response to a galactic X-ray source. This result could only have been determined at the equator, where cosmic ray background effects are minimal. The objective of the experiments was to seek out the equatorial energetic electron belt, sporadically reported to contain fluxes near auroral levels, measure the bremsstrahlung radiation produced by this particle belt, and determine the influence of this radiation on the middle atmosphere. High altitude rocket payloads (Nike Tomahawk 18.170 and 18.171) were launched to probe the thermosphere during and following the anticipated downward drift period. Each carried an on-axis X-ray scintillation detector and Geiger Mueller energetic electron detectors. Magnetometers and lunar sensors were used to determine payload aspect.

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