The 
& 
Surveys:
Data Release 3
NOTICE: DR4 data products are now available! Check DR4, as DR3 data products will be superceded by the new data release (coming soon!).
Photometric catalog release
April 22, 2024
The DR3 Photometric catalog includes photometry from the combined MegaScience+UNCOVER set of mosaics. Included in the release are a "SUPER" catalog with photometry determined from optimally-selected color apertures, identification of stars and artifacts, and complete coverage of all available JWST imaging over Abell 2744.
All catalogs are based on F444W PSF-matched imaging, where the bright cluster galaxies and ICL have been modeled and subtracted. Detection was performed on a noise-equalized long-wavelength image (F277W+F356W+F444W).
In addition to photometry, the catalogs contain basic photometric redshifts and rest-frame fluxes derived using EAZY, ALMA fluxes from DUALZ (Fujimoto et al. 2023) where available, and lensing magnifications for each object based on the v1.1 lensing maps (Furtak et al. 2022).
Also included in the release is a catalog of photometric redshifts derived using Prospector-β (Wang et al 2023).
For full details, please see the README and the UNCOVER catalog paper.
Please cite Suess et al. 2024 when using any of the following data products.
| Photometric catalogs (including EAZY redshifts & restframe fluxes): | ||
|---|---|---|
| Flux aperture | Intended use | Files |
| SUPER | Recommended catalog with optimally determined aperture sizes per object | Catalog README Regions |
| 0.32", 0.48", 0.70", 1.00", and 1.40" | Single aperture catalogs for specific science applications (e.g., small radius for compact, faint, high-z, or crowded sources; ...) | Catalogs README |
| Prospector-β photometric redshifts: | |
|---|---|
| Prospector-β photometric redshift catalog, derived using the DR3 SUPER photometry catalog. | Catalog README |
| Ancillary products | Description | Files |
|---|---|---|
| LW detection | Noise-equalized F277W+F356W+F444W detection image | Image Segmap Regions |
| Bright cluster galaxy (bCG) modeling | bCG-subtracted mosaics (non-PSF-matched) and bCG models | Images README Models |
| PSFs | Empirical PSFs for all filters | FITS files |
| Kernels | Convolution kernels for PSF matching all filters to F444W | FITS files |
| Filter translation | EAZY zphot filter translation | zphot.translate |
NIRCam primary / NIRISS parallel mosaic release
April 22, 2024
The reduced mosaics from the MegaScience observations are now available! These include the remainder of the NIRCam broad- and medium-band filters not yet observed over the extended Abell 2744 cluster: the shortest two broad-band filters (F070W, F090W) and 11 medium-band filters (F140M, F162M, F182M, F210M, F250M, F300M, F335M, F360M, F430M, F460M, F480M). The parallel NIRISS imaging, overlapping the previous UNCOVER imaging over the Hubble Frontier Fields parallel pointing, includes two broad-band (F090W, F277W) and four medium band filters (F140M, F158M, F430M, F480M).
Updated UNCOVER mosaics, with the same WCS, are also available. The short- (shorter than F250M) and long-wavelength bands (F250M and longer) use pixel scales of 0.02" and 0.04", respectively. All filters have the same WCS, which is defined so that the short-wavelength pixels can be binned 2x2 to directly match the long-wavelength images. Note that the primary footprint has been expanded from the UNCOVER DR2 mosaics to fully all available NIRCam imaging in Abell 2744.
Additionally, mosaics of all existing HST data are provided, produced with the same WCS and footprint and a 0.04" pixel scale.
These mosaics include data from the following programs:- JWST/NIRCAM: GO-4111 (MegaScience), MAGNIF (GO-2883, PI: Sun), ALT (GO-3516; PI: Naidu & Matthee), GO-3538 (PI: Iani), GO-2561 (UNCOVER), ERS-1324 (GLASS), DD-2767
- JWST/NIRISS: GO-4111 (MegaScience), MAGNIF (GO-2883, PI: Sun), ALT (GO-3516; PI: Naidu & Matthee), GO-2561 (UNCOVER), ERS-1324 (GLASS)
- HST/ACS: #11689 (PI: Dupke), #13386 (PI: Rodney), #13495 (PI: Lotz / HFF), #13389 (PI: Siana), #15117 (PI: Steinhardt / BUFFALO), #17231 (PI: Treu)
- HST/WFC3: #13495 (PI: Lotz / HFF), #15117 (PI: Steinhardt / BUFFALO)
Please cite Suess et al. 2024 and Bezanson et al. 2024 if using these mosaics in any publication.
The following scripts can be used for batch downloads:Linux/Unix: All files,
NIRCAM/Primary,
NIRISS/Parallel,
and the ancillary
HST/ACS,
HST/WFC3
mosaics MacOS: All files,
NIRCAM/Primary,
NIRISS/Parallel,
and the ancillary
HST/ACS,
HST/WFC3
mosaics