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arXiv · 2607.25858

A Citizen Science Search for Compact Emission Line Nebulae

Bringfried Stecklum·Peter Bresseler
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Abstract

In recent years, citizen science became an integral part of astronomy. Numerous projects contribute to important studies by involving large communities. While these are getting quite some attention, there are also individual efforts, which are nevertheless very valuable. Here, we report on results of a search for compact optical emission line nebulae, which are signposts of both young and evolved stars. The increased brightness in red photometric bands due to the contribution of shock-excited emission lines has been used as a tracer when examining optical broadband surveys. With the help of public databases, we identified and characterized associated sources if possible. Most of them are young stellar objects (YSOs).

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Bringfried Stecklum, Peter Bresseler. 2026-07-28. A Citizen Science Search for Compact Emission Line Nebulae. https://arxiv.org/abs/2607.25858

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