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Is there ERE in bright nebulae?

F. Zagury
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Abstract

In 1986 Witt & Schild studied the optical emission of selected bright nebulae. Comparison of the data to a model led the authors to conclude the nebulae have too high a level of I-band emission to be explained solely by the scattering of starlight. The excess is explained as a broad band I emission which originates in the nebulae. This phenomenum is known as Extended Red Emission (ERE). Given Witt & Schild's data, the model they employed, and the estimate of observational errors, I've reached a different conclusion: Witt & Schild's observations are compatible with classical scattering and therefore cannot be used to prove the existence of ERE.

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F. Zagury. 2000-06-06. Is there ERE in bright nebulae?. https://arxiv.org/abs/astro-ph/0006068

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