Measurements of the diffuse ultraviolet radiation

Details Measurements of the diffuse ultraviolet radiation Measurements of the diffuse ultraviolet radiation

Oct 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...345..203f&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 345, Oct. 1, 1989, p. 203-209.

Astronomy and Astrophysics

Astrophysics

24

Cosmic Rays, Diffuse Radiation, Image Analysis, Milky Way Galaxy, Ultraviolet Radiation, Astronomical Photometry, Dynamics Explorer 1 Satellite, Hydrogen, Scattering

Scientific paper

The imaging instrumentation on the Dynamics Explorer 1 satellite has been used to measure the intensity of the diffuse ultraviolet radiation on two great circles about the sky. It is found that the isotropic component of the diffuse ultraviolet radiation (possibly of extragalactic origin) has an intensity of 530 + or - 80 units (a unit is 1 photon per sq cm s A sr) at a wavelength of 150 nm. The Galactic component of the diffuse ultraviolet radiation has a dependence on Galactic latitude which requires strongly forward scattering particles if it is produced by dust above the Galactic plane.

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