The spectral evolution of the first galaxies: III. Simulated James Webb space telescope spectra of reionization-epoch galaxies with Lyman-continuum leakage
Using four different suites of cosmological simulations, we generate synthetic spectra for galaxies with different Lyman-continuum escape fractions ( f esc ) at redshifts ##IMG## [http://ej.iop.org/images/0004-637X/836/1/78/apjaa58e3ieqn1.gif] $z\approx 7$ -9, in the rest-frame wavelength range rele...
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| Hauptverfasser: | , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
2017 February 9
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| In: |
The astrophysical journal. Part 2, Letters
Year: 2017, Jahrgang: 836, Heft: 1, Pages: 12 |
| ISSN: | 2041-8213 |
| DOI: | 10.3847/1538-4357/836/1/78 |
| Online-Zugang: | Verlag, Volltext: http://dx.doi.org/10.3847/1538-4357/836/1/78
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| Verfasserangaben: | Erik Zackrisson, Christian Binggeli, Kristian Finlator, Nickolay Y. Gnedin, Jan-Pieter Paardekooper, Ikkoh Shimizu, Akio K. Inoue, Hannes Jensen, Genoveva Micheva, Sadegh Khochfar, and Claudio Dalla Vecchia |
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| 245 | 1 | 4 | |a The spectral evolution of the first galaxies |b III. Simulated James Webb space telescope spectra of reionization-epoch galaxies with Lyman-continuum leakage |c Erik Zackrisson, Christian Binggeli, Kristian Finlator, Nickolay Y. Gnedin, Jan-Pieter Paardekooper, Ikkoh Shimizu, Akio K. Inoue, Hannes Jensen, Genoveva Micheva, Sadegh Khochfar, and Claudio Dalla Vecchia |
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| 520 | |a Using four different suites of cosmological simulations, we generate synthetic spectra for galaxies with different Lyman-continuum escape fractions ( f esc ) at redshifts ##IMG## [http://ej.iop.org/images/0004-637X/836/1/78/apjaa58e3ieqn1.gif] $z\approx 7$ -9, in the rest-frame wavelength range relevant for the James Webb Space Telescope ( JWST ) NIRSpec instrument. By investigating the effects of realistic star formation histories and metallicity distributions on the EW(H β )- β diagram (previously proposed as a tool for identifying galaxies with very high f esc ), we find that neither of these effects are likely to jeopardize the identification of galaxies with extreme Lyman-continuum leakage. Based on our models, we expect that essentially all ##IMG## [http://ej.iop.org/images/0004-637X/836/1/78/apjaa58e3ieqn2.gif] $z\approx 7\mbox-9$ galaxies that exhibit rest-frame ##IMG## [http://ej.iop.org/images/0004-637X/836/1/78/apjaa58e3ieqn3.gif] $\mathrmEW(\rmH\beta )\lesssim 30$ Å to have ##IMG## [http://ej.iop.org/images/0004-637X/836/1/78/apjaa58e3ieqn4.gif] | ||
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