Observation of Far-ultraviolet Continuum Background Radiation

Details Observation of Far-ultraviolet Continuum Background Radiation Observation of Far-ultraviolet Continuum Background Radiation

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006head....9.0763s&link_type=abstract

American Astronomical Society, HEAD meeting #9, #7.63; Bulletin of the American Astronomical Society, Vol. 38, p.360

Astronomy and Astrophysics

Astrophysics

Scientific paper

We present a map of the cosmic far-ultraviolet (FUV; 1360-1710A) continuum background over the most of the sky. The map was obtained with the "Spectroscopy of Plasma Evolution from Astrophysical Radiation" instruments (SPEAR/FIMS), flown aboard the STSAT-1 satellite mission. The cosmic FUV flux distribution is consistent with what is generally believed to be its dominant component, light from early-type stars scattered by interstellar dust. We report an estimate of the total FUV interstellar radiation field and compare the diffuse FUV continuum map with maps of reddening, N(HI), and H_alpha. We are developing a dust-scattering radiative transfer model to fit the FUV continuum data. The coverage and quality of our data should allow us to place simultaneous constraints on the dust and illumination parameters.
Funded by NASA Grant NAG 5-5355 and the Korean Ministry of Science and Technology.

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