Spectroscopic limits to an extragalactic far-ultraviolet background

Details Spectroscopic limits to an extragalactic far-ultraviolet background Spectroscopic limits to an extragalactic far-ultraviolet background

Oct 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...379..549m&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 379, Oct. 1, 1991, p. 549-563.

Astronomy and Astrophysics

Astrophysics

38

Astronomical Spectroscopy, Background Radiation, Extraterrestrial Radiation, Far Ultraviolet Radiation, Intergalactic Media, Active Galactic Nuclei, Cosmic Dust, Emission Spectra, Galactic Evolution, Hydrogen, Spectrum Analysis

Scientific paper

A spectrum in the lowest-intensity diffuse FUV background obtained from a series of observations in a number of celestial view directions is used to constrain the properties of the extragalactic FUV background. Specifically, the spectrum obtained in the direction with the lowest H I column density is used to search for and constrain spectral characteristics of the extragalatic component. A neighboring target with significantly more dust scattering is used to estimate the residual dust component in the low N(H I) target. The offset in the background intensity-N(H I) correlation may be primarily generated by a previously undetected Galactic dust component.

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