False color image of the Hubble UltraDeep Field in the 8 bluest HST-unique filters (WFC3/UVIS F225W, F275W, and F336W and ACS/WFC F435W, F606W, F775W, F814W and F850LP from Fig. 3), but now all noise-weighted and rendered only in the blue channel. This demonstrates the HST-unique UV–blue photons from recent star-formation that represent the more recent cosmic SFH at z≃0–2 — i.e., from the peak in the cosmic SFH and more recently — which JWST does not sample for the hottest stellar rest-frame wavelengths. A high-resolution TIFF version of this image is published on Zenodo: doi:10.5281/zenodo.15014653figure 3
False color image of the Hubble UltraDeep Field in the 8 bluest HST-unique filters (WFC3/UVIS F225W, F275W, and F336W and ACS/WFC F435W, F606W, F775W, F814W and F850LP from Fig. 3), but now all noise-weighted and rendered only in the blue channel. This demonstrates the HST-unique UV–blue photons from recent star-formation that represent the more recent cosmic SFH at z≃0–2 — i.e., from the peak in the cosmic SFH and more recently — which JWST does not sample for the hottest stellar rest-frame wavelengths. A high-resolution TIFF version of this image is published on Zenodo: doi:10.5281/zenodo.15014653
Color image of the publicly available 52.7 hour JWST NIRCam JADES images of the same HUDF area as covered by Hubble in Fig. 3–4. To best illustrate the JWST sensitivity to infrared objects — and mimic the colors closest to the what the human eye can see — all NIRCam filter images were noise-weighted and rendered in green (F090W, F115W, F150W, F182M, F200W, and F210M) or in red (F277W, F335M, F356W, F410M, and F444W). The JWST NIRCam data alone sample the rest-frame optical part of the cosmic star-formation history at z≲ 2, and further into the rest-frame UV at z≳ 2 (see Fig. 7e). A high-resolution TIFF version of this image is published on Zenodo: doi:10.5281/zenodo.15015269
Full color image of the combined public 361.3 hour HST + 52.7 hour JWST data of Fig. 4–5 rendered in full panchromatic RGB. The 8 bluest HST-unique filters (WFC3/UVIS F225W, F275W, and F336W, ACS/WFC F435W, F606W, F775W, F814W and F850LP) were noise-weighted and rendered in blue, the JWST NIRCam SW filter images in green (F090W, F115W, F150W, F182M, F200W, F210M), and the JWST NIRCam LW filter images in red (F277W, F335M, F356W, F410M, F444W). At 414 hours, this is the deepest combined HST+JWST color image available to date, and demonstrates the strong complementarity of HST to JWST: HST adds the unique unobscured restframe UV+blue that samples the more recent half of the CSFH in the last 10 billion years (z≲ 2), compared to the JWST restframe optical–near-IR that samples older and/or more dusty stellar populations, and very rare objects at z≳ 10–13 seen in the first 300–500 Myr. A high-resolution TIFF version of this image is published on Zenodo: doi:10.5281/zenodo.15041742
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