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arXiv · 1601.07173

A Coherent Study of Emission Lines from Broad-Band Photometry: Specific Star-Formation Rates and [OIII]/H{\beta} Ratio at 3 < z < 6

A. L. Faisst·P. Capak·B. C. Hsieh·C. Laigle·M. Salvato·L. Tasca·P. Cassata·I. Davidzon·O. Ilbert·O. Le Fevre·D. Masters·H. J. McCracken·C. Steinhardt·J. D. Silverman·S. De Barros·G. Hasinger·N. Z. Scoville
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Abstract

We measure the H{\alpha} and [OIII] emission line properties as well as specific star-formation rates (sSFR) of spectroscopically confirmed 3 3 cannot be fully explained in a picture of cold accretion driven growth. We find a progressively increasing [OIII]{\lambda}5007/H{\beta} ratio out to z~6, consistent with the ratios in local galaxies selected by increasing H{\alpha} EW (i.e., sSFR). This demonstrates the potential of using "local high-z analogs" to investigate the spectroscopic properties and relations of galaxies in the re-ionization epoch.

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A. L. Faisst, P. Capak, B. C. Hsieh, C. Laigle, M. Salvato, L. Tasca, P. Cassata, I. Davidzon, O. Ilbert, O. Le Fevre, D. Masters, H. J. McCracken, C. Steinhardt, J. D. Silverman, S. De Barros, G. Hasinger, N. Z. Scoville. 2016-01-26. A Coherent Study of Emission Lines from Broad-Band Photometry: Specific Star-Formation Rates and [OIII]/H{\beta} Ratio at 3 < z < 6. https://doi.org/10.3847/0004-637x/821/2/122

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