The space densities and emissivities of AGNs at $z> 4$
Autor: | Giallongo, E., Grazian, A., Fiore, F., Kodra, D., Urrutia, T., Castellano, M., Cristiani, S., Dickinson, M., Fontana, A., Menci, N., Pentericci, L., Boutsia, K., Newman, J. A., Puccetti, S. |
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Rok vydání: | 2019 |
Předmět: | |
Druh dokumentu: | Working Paper |
Popis: | The study of the space density of bright AGNs at $z>4$ has been subject to extensive effort given its importance for the estimate of the cosmological ionizing emissivity and growth of supermassive black holes. In this context we have recently derived high space densities of AGNs at $z\sim 4$ and $-25 Comment: Accepted for publication in ApJ |
Databáze: | arXiv |
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