EPOCHS-DR2 I: Expanded data release and properties of 6.5<z<16.5 photometrically selected galaxies across NIRCam deep fields covering about700, arcmin squared with the galfind software
astro-ph.GA
Submitted: 2026-09-21
Updated: 2026-09-21
Comments: 38 pages, 11 figures, 8 tables, Submitted to ApJ
Code: https://github.com/chriswillott/jwst
License: http://creativecommons.org/licenses/by/4.0/
The gist: We present the sample of 2452 star forming galaxies at 6.5<z phot<16.5 produced using the photometric pipeline across about650-740 arcmin squared in six of the most widely used deep, blank field
Terminology
Abstract
We present the sample of 2452 star forming galaxies at 6.5<z phot<16.5 produced using the photometric pipeline across about650-740 arcmin squared in six of the most widely used deep, blank field /NIRCam imaging surveys. 293 galaxies are spectroscopically confirmed and a spectroscopic--photometric redshift comparison yields a normalized median absolute deviation, σ NMAD=0.017, an η=4.3% outlier rate, and a mean offset Δz=-0.022. We find 34 little red dots (LRDs) with ``V--shaped'' SEDs, as well as 69 L--type, 36 T--type, and 2 compact Y--type brown dwarf candidates, which we remove from our sample. The fiducial sample yields a flattening β UV-M UV relation with only moderately blue median β UV(M UV=-19)=-2.32+0.08-0.07 at z 12.5, implying dust-polluted stellar populations at the highest redshifts. A ``gold'' sample of 62 sources are identified at z phot>10.5, about85% of which are without NIRSpec follow-up, including 15 candidates at z phot>13.5 across a diverse range of proper sizes 30, pc r c 1.5, kpc and UV slopes-4.0 β UV-1.5. Two very promising candidates stand out, GS-W-4608 and GN-Med-1881, with β UV-3, 1.6, mag 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,, and SED fitting results, enhancing the legacy value of photometric JWST data in the upcoming era of wide-field imaging datasets with Euclid and Roman.
Sources
- JWST Advanced Deep Extragalactic Survey (JADES) Data Release 5: MIRI Coordinated Parallels in GOODS-S and GOODS-N
- Resolving the ionizing photon budget crisis with JWST/NIRCam HII clumping constraints at z=6
- Analytical properties of the R^(1/m) luminosity law
- Interstellar Dust Models and Evolutionary Implications
- JWST Advanced Deep Extragalactic Survey (JADES) Data Release 5: stellar population catalogue for galaxies in GOODS-N and GOODS-S
- The JADES Origins Field: A New JWST Deep Field in the JADES Second NIRCam Data Release
- The 2017 Release of Cloudy
- Physical properties of galaxies and the UV Luminosity Function from $z\sim6$ to $z\sim14$ in COSMOS-Web
- JWST spectroscopy of galaxies at z>10: Damped Ly alpha absorbers reveal efficient star formation and hidden redshift biases
- Distance measures in cosmology
- The Hubble Legacy Fields (HLF-GOODS-S) v1.5 Data Products: Combining 2442 Orbits of GOODS-S/CDF-S Region ACS and WFC3/IR Images
- An unambiguous AGN and a Balmer break in an Ultraluminous Little Red Dot at z=4.47 from Ultradeep UNCOVER and All the Little Things Spectroscopy
- A clear detection of proper motion confirms that the claimed z 32 galaxy candidate, "Capotauro'', is a Y-type brown dwarf
- Stochastic star formation and the abundance of $z>10$ UV-bright galaxies
- A search for the first galaxies across $>0.6$ deg$^2$ of JWST imaging: new evidence for a rapid decline in star-formation activity at $z>12$
- Schrodinger's Galaxy Candidate: Puzzlingly Luminous at $z\approx17$, or Dusty/Quenched at $z\approx5$?
- First Light and Reionization Epoch Simulations (FLARES) XXII: UV-dust spatial offsets at the Epoch of Reionisation
- JWST Spectroscopic Insights Into the Diversity of Galaxies in the First 500 Myr: Short-Lived Snapshots Along a Common Evolutionary Pathway
- The JWST Spectroscopic Properties of Galaxies at $z=9-14$
Related papers
- Apparent Stability in Self-Gravitating Turbulence and the Evolution of Molecular Clouds
- Two sets of potential-density basis pairs for the study of radial perturbations in collisionless spherical stellar systems
- Constraining reionization-era Ly alpha escape with JELS-MUSE: a highly complete H alpha-selected sample at z about6.1
- Deriving volume density profiles of filaments from observed surface densities
- Little Red Dots and Supermassive Black Hole Seed Formation in Ultralight Dark Matter Halos
- MEGATRON: how the first stars can create an iron metallicity plateau in the smallest dwarf galaxies