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The Evolution of the Global Star Formation History as Measured from the Hubble Deep Field

A. J. Connolly·A. S. Szalay·Mark Dickinson·M. U. SubbaRao·R. J. Brunner
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Abstract

The Hubble Deep Field (HDF) is the deepest set of multicolor optical photometric observations ever undertaken, and offers a valuable data set with which to study galaxy evolution. Combining the optical WFPC2 data with ground-based near-infrared photometry, we derive photometrically estimated redshifts for HDF galaxies with J<23.5. We demonstrate that incorporating the near-infrared data reduces the uncertainty in the estimated redshifts by approximately 40% and is required to remove systematic uncertainties within the redshift range 1 2, and bridge the redshift gap between those two samples. The overall star formation or metal enrichment rate history is consistent with the predictions of Pei and Fall (1995) based on the evolving HI content of Lyman-alpha QSO absorption line systems.

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A. J. Connolly, A. S. Szalay, Mark Dickinson, M. U. SubbaRao, R. J. Brunner. 1997-06-25. The Evolution of the Global Star Formation History as Measured from the Hubble Deep Field. https://doi.org/10.1086/310829

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