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We present the 970-1175 A spectral energy distributions (SEDs) of 12starburst galaxies observed with the Far Ultraviolet Spectroscopic ExplorerFUSE. We take benefit of the high spectral resolution of FUSE to estimate acontinuum as much as possible unaffected by the interstellar lines. Thecontinuum is rather flat with, in few cases, a decrease at lambda <~1050 A, theamplitude of which being correlated with various indicators of the dustextinction. The far-UV SEDs are compared with synthetic population models. Thegalaxies with almost no extinction have a SED consistent with an on-going starformation over some Myrs. We derive a mean dust attenuation law in thewavelength range 965-1140 A by comparing the SED of obscured galaxies to anempirical dust-free SED. The extinction is nearly constant longward of 1040 Abut rises at shorter wavelengths. We compare our results with other studies ofthe extinction for galaxies and stars in this wavelength range.Comment: 11 pages, 6 postscript figures, accepted for publication in Astronomy  & Astrophysic

Spectral Energy Distributions of starburst galaxies in the 900–1200 $\rm \AA$ range