CANDELS: The Contribution of the Observed Galaxy Population to Cosmic Reionization

Steven L. Finkelstein, Casey Papovich, Russell E., Jr. Ryan, Andreas H. Pawlik, Mark Dickinson, Henry C. Ferguson, Kristian Finlator, Anton M. Koekemoer, Mauro Giavalisco, Asantha Cooray, James S. Dunlop, Sandy M. Faber, Norman A. Grogin, Dale D. Kocevski, Jeffrey A. Newman

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

We present measurements of the specific ultraviolet luminosity density from a sample of 483 galaxies at 650%. Combining our observations with constraints on the emission rate of ionizing photons from Ly-alpha forest observations at z=6, we can constrain f_esc7, consistent with a number of complementary reionization probes. If faint galaxies dominate reionization, future JWST observations will probe deep enough to see them, providing an indirect constraint on the ionizing photon escape fraction [abridged].
Original languageEnglish
Article number93
JournalAstrophysical Journal
Issue number2
Publication statusPublished - 1 Jun 2012


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