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arxiv: astro-ph/0106319 · v2 · submitted 2001-06-19 · 🌌 astro-ph

Scattered starlight contamination in the spectrum of reddened stars

classification 🌌 astro-ph
keywords grainsspectrumreddenedscatteredsmallstarlightstarsapparent
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The comparison, undertaken in preceding papers, of the UV observations of nebulae and of reddened stars reveals contradictory aspects of interstellar extinction. The aim of this paper is to understand the implications hidden behind the apparent contradictions. The questions treated will be: how can small grains with an isotropic phase function make an appreciable contribution in the UV spectrum of a star? Why are small grains not observed in the spectrum of a nebula? How much of starlight can be scattered by large grains in the forward direction?

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