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The UV spectrum of nebulae

Zagury, Frédéric

This paper presents an analysis of the UV spectrum of some nebulae with clearly identified illuminating stars, all observed by the IUE satellite. The data show remarkable properties of the UV spectrum of the nebulae. Each spectrum is the product of the star spectrum and a linear function of 1/ λ. There is no peculiar behaviour in the spectrums at …

Interpretation of the UV spectrum of some stars with little reddening

Zagury, Frédéric

The UV spectrum of a few reddened stars will be decomposed into two terms. One is the direct starlight, F _★,λ⁰ e^{-τ _λ}, which is the product of the flux of the star corrected for interstellar extinction, F_{★, λ}⁰, and of the extinction e ^{- τ_λ}. The second is starlig…