Survey Overview

Medium Bands: Mega Science is a JWST Cycle 2 public survey that will obtain deep NIRCam multiband imaging of the Frontier Field Abell 2744, building on existing imaging from the Cycle 1 Treasury Program UNCOVER. MegaScience includes observations in all dozen of NIRCam’s medium-band filters, as well as the two bluest broad-band filters F070W and F090W.

Thanks to the strong lensing boost, deep observations, and dense photometric coverage (20 bands!), MegaScience will be uniquely positioned to (1) improve our understanding of the redshifts and stellar population properties of distant galaxies, and (2) map strong emission features across a wide redshift range from the cluster itself through the epoch of reionization.

These data will allow us to understand where stars form within galaxies, the incidence and distribution of star-forming clumps, spatial variations in dust, and perform a wide range of ancillary science from identification and characterization of AGN through modeling NIRSpec slit losses.

MegaScience official program info

Data releases

Acknowledgement

Please cite the survey paper (Suess et al. 2024) for any publications using MegaScience data products, as well the other publications noted for specific releases.

As the MegaScience catalogs also include broad-band photometry from the UNCOVER survey (GO-2561; PIs: Bezanson & Labbe), please also cite the UNCOVER survey paper (Bezanson et al. 2022) in any publication using the UNCOVER+MegaScience data products.

Data Release 4

First UNCOVER Spectra and Redshift catalog release;
(Price et al. 2024, August 7, 2024)

Updated v2.0 Abell 2744 Lens Model release (using MegaScience imaging)
(Price et al. 2024 & Furtak et al. 2023, August 7, 2024)

Updated lensing magnifications
(Price et al. 2024, Furtak et al. 2023, Suess et al. 2024, & Weaver et al. 2024, August 7, 2024)

Data Release 3

MegaScience medium band+UNCOVER photometric catalog release; MegaScience+UNCOVER mosaic release
(Suess et al. 2024, April 22, 2024)

Past UNCOVER releases

Note: The MegaScience release numbers are incorporated into the release order scheme of the UNCOVER survey.