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Extended Red Emission: Photoluminescence by Interstellar Nanoparticles
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Interstellar dust in nebulae and in the diffuse interstellar medium of galaxies contains a component which responds to illumination by ultraviolet photons with efficient luminescence in the 500 nm to 1000 nm spectral range, known as Extended Red Emission (ERE). We review the techniques of detection and the observational characteristics of the ERE in a wide range of astrophysical environments. We then discuss results of the analysis of ERE observations, leading to a set of specific constraints that any proposal for the ERE carrier must confront. Finally, we review specific models that have been advanced over the past two decades to explain the ERE phenomenon. Despite promising progress on several fronts, no completely satisfactory model for the ERE carrier/process exists at this time.
Forward citations
Cited by 3 Pith papers
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Graphene Oxide Nanoparticles in the Interstellar Medium
Graphene oxide nanoparticles are proposed as the carrier of the unexplained extended red emission in interstellar space.
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Why is GN-z11 Bright, Compact, and Nitrogen Enhanced? Insights from UV Absorption and Emission Diagnostics
The UV continuum of the early galaxy GN-z11 is dominated by massive stars, and its extreme nitrogen enhancement is likely localized to dense gas enriched by stellar winds.
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Scylla: Observational Evidence for an Order of Magnitude in Dust Mass Opacity Evolution with ISM Density in the Large Magellanic Cloud
In the LMC, the FIR-to-optical dust opacity ratio increases with gas surface density, indicating that dust mass emission efficiency evolves with ISM density.
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