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Extreme CII Flux Ratios in Type 2 Quasars at z∼2

A. Humphrey, L. Binette

We discuss the failure of canonical AGN photoionization models to explain the CII lambda1335 A to CII]lambda2326 A flux ratio in the extended narrow line regions of type 2 radio loud quasars at z∼2.5. We propose kappa-distributed electron energies as a natural solution. Low gas metallicity, shock ionization or continuum fluorescence provide plausible, but less natural, solutions.

Massive Young Star Clusters Near and Far: From the Milky Way to Reionization
Y. D. Mayya, D. Rosa GonzŠlez, E. Terlevich

INAOE & AMC, Page 219
2014 September

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Faculdade de Ciências da Universidade de Lisboa Universidade do Porto Faculdade de Ciências e Tecnologia da Universidade de Coimbra
Fundação para a Ciência e a Tecnologia COMPETE 2020 PORTUGAL 2020 União Europeia