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arXiv · 2004.06128

Simulating JWST deep extragalactic imaging surveys and physical parameter recovery

O. B. Kauffmann·O. Le Fèvre·O. Ilbert·J. Chevallard·C. C. Williams·E. Curtis-Lake·L. Colina·P. G. Pérez-González·J. P. Pye·K. I. Caputi
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Abstract

We present a new prospective analysis of deep multi-band imaging with the James Webb Space Telescope (JWST). In this work, we investigate the recovery of high-redshift $5 6$ and redshifts $0 5$ galaxy samples can be reduced to $<0.01$ arcmin$^{-2}$ with a limited impact on galaxy completeness. We investigate multiple high-redshift galaxy selection techniques and find the best compromise between completeness and purity at $5<z<10$ using the full redshift posterior probability distributions. In the EGS field, the galaxy completeness remains higher than $50\%$ for $m_\text{UV}<27.5$ sources at all redshifts, and the purity is maintained above $80$ and $60\%$ at $z\leq7$ and $10$ respectively. The faint-end slope of the galaxy UV luminosity function is recovered with a precision of $0.1-0.25$, and the cosmic star-formation rate density within $0.1$ dex. We argue in favor of additional observing programs covering larger areas to better constrain the bright end.

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O. B. Kauffmann, O. Le Fèvre, O. Ilbert, J. Chevallard, C. C. Williams, E. Curtis-Lake, L. Colina, P. G. Pérez-González, J. P. Pye, K. I. Caputi. 2020-04-13. Simulating JWST deep extragalactic imaging surveys and physical parameter recovery. https://doi.org/10.1051/0004-6361/202037450

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