EPOCHS-DR2 I: Expanded data release and properties of $6.5<z<16.5$ photometrically selected galaxies across NIRCam deep fields covering $\sim700\,\rm arcmin^2$ with the galfind software

Duncan Austin; Christopher J. Conselice; Thomas Harvey; Nathan J. Adams; Louis Quilley; Jordan C. J. D'Silva; Vadim Rusakov; Qiong Li; Lewi Westcott; Caio Goolsby; James Arcidiacono; Kai Madgwick; William J. Roper; Brenda Frye; Norman A. Grogin; Rafael Ortiz III; Rogier Windhorst

arXiv · 2609.24987

EPOCHS-DR2 I: Expanded data release and properties of $6.5<z<16.5$ photometrically selected galaxies across NIRCam deep fields covering $\sim700\,\rm arcmin^2$ with the galfind software

Duncan Austin·Christopher J. Conselice·Thomas Harvey·Nathan J. Adams·Louis Quilley·Jordan C. J. D'Silva·Vadim Rusakov·Qiong Li·Lewi Westcott·Caio Goolsby·James Arcidiacono·Kai Madgwick·William J. Roper·Brenda Frye·Norman A. Grogin·Rafael Ortiz III·Rogier Windhorst

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Abstract

We present the \epochstwo\ sample of $2452$ star forming galaxies at $6.5 10.5$, $\sim85\%$ of which are without NIRSpec follow-up, including $15$ candidates at $z_{\rm phot}>13.5$ across a diverse range of proper sizes $30\,\rm pc\lesssim r_{\rm c}\lesssim1.5\,\rm kpc$ and UV slopes $-4.0\lesssimβ_{\rm UV}\lesssim-1.5$. Two very promising candidates stand out, GS-W-4608 and GN-Med-1881, with $β_{\rm UV}\lesssim-3$, $\gtrsim1.6\,\rm mag$ \lya\ break colors, and F335M and F410M detections which improve their high-redshift solution robustness. Complementary to our high-redshift sample, this public data release provides the community with optical/NIR catalogs, empirical PSFs, and \eazypy, \bagpipes, and \bdfinder\ SED fitting results, enhancing the legacy value of photometric JWST data in the upcoming era of wide-field imaging datasets with Euclid and Roman.

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Duncan Austin, Christopher J. Conselice, Thomas Harvey, Nathan J. Adams, Louis Quilley, Jordan C. J. D'Silva, Vadim Rusakov, Qiong Li, Lewi Westcott, Caio Goolsby, James Arcidiacono, Kai Madgwick, William J. Roper, Brenda Frye, Norman A. Grogin, Rafael Ortiz III, Rogier Windhorst. 2026-09-21. EPOCHS-DR2 I: Expanded data release and properties of $6.5<z<16.5$ photometrically selected galaxies across NIRCam deep fields covering $\sim700\,\rm arcmin^2$ with the galfind software. https://arxiv.org/abs/2609.24987

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