Interpretation of the UV spectrum of some stars with little reddening

Abstract

The spectrum of five stars is analysed and explained by the superimposition of two components. One is the extinction of the direct starlight, with an extinction coefficient A which varies as the inverse of the wavelength across all the UV. This linear dependence of extinction upon the inverse of wavelength prolongs to the UV the well known relation which exist in the optical between extinction and wavelength. The second component is an additional feature, superimposed on the extincted direct starlight. This feature is interpreted as starlight scattered by dust at close angular distance to the star, into the beam of the observation.

18 pages, 7 figures

References in corpus (1)

• The UV spectrum of nebulae

Cited by in corpus (8)

• The spectrum of HD46223
• Scattered starlight contamination in the spectrum of reddened stars
• Diffuse Galactic light at high Galactic latitude: nature and interpretation
• The 2200 A bump and the UV extinction curve
• The incompatibilities between the standard theory of interstellar extinction and observations
• A review of the properties of the scattered starlight which contaminates the spectrum of reddened stars
• Les incompatibilites entre la theorie standard de l'extinction interstellaire et l'observation
• Sur la contamination de la lumiere des etoiles par de la lumiere diffusee a tres faible angle