We have modeled the diffuse background at the Galactic Poles in the far-ultraviolet (FUV: 1536 & Aring;) and the near-ultraviolet (NUV: 2316 & Aring;). The background is well-fit using a single-scattering dust model with an offset representing the extragalactic light plus any other contribution to the diffuse background. We have found a dust albedo of 0.35-0.40 (FUV) and 0.11-0.19 in the NGP (b > 70 degrees) and 0.46-0.56 (FUV) and 0.31-0.33 (NUV) in the SGP (b < 70<degrees>). The differences in the albedo may reflect changes in the dust-to-gas ratio over the sky or in the dust distribution. We find offsets at zero-reddening of 273-286 and 553-581 photons cm(-2 )s(-1) sr(-1) & Aring;(-1) in the FUV and NUV, respectively, in the NGP with similar values in the SGP.
机构:
Cultural & Educ Ctr, Ul Chaikovskogo 3, Yaroslavl 150000, Russia
State Pedag Univ, Ul Respublikanskaya 108, Yaroslavl 150000, RussiaCultural & Educ Ctr, Ul Chaikovskogo 3, Yaroslavl 150000, Russia
Perov, N. I.
Pakhomycheva, V. E.
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State Pedag Univ, Ul Respublikanskaya 108, Yaroslavl 150000, RussiaCultural & Educ Ctr, Ul Chaikovskogo 3, Yaroslavl 150000, Russia