English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We present photometry and derived redshifts from up to eleven bandpasses for9927 galaxies in the Hubble Ultra Deep field (UDF), covering an observedwavelength range from the near-ultraviolet (NUV) to the near-infrared (NIR)with Hubble Space Telescope observations. Our Wide Field Camera 3 (WFC3)/UVF225W, F275W, and F336W image mosaics from the ultra-violet UDF (UVUDF) imagingcampaign are newly calibrated to correct for charge transfer inefficiency, anduse new dark calibrations to minimize background gradients and pattern noise.Our NIR WFC3/IR image mosaics combine the imaging from the UDF09 and UDF12campaigns with CANDELS data to provide NIR coverage for the entire UDF field ofview. We use aperture-matched point-spread function corrected photometry tomeasure photometric redshifts in the UDF, sampling both the Lyman break andBalmer break of galaxies at z~0.8-3.4, and one of the breaks over the rest ofthe redshift range. Our comparison of these results with a compilation ofrobust spectroscopic redshifts shows an improvement in the galaxy photometricredshifts by a factor of two in scatter and a factor three in outlier fractionover previous UDF catalogs. The inclusion of the new NUV data is responsiblefor a factor of two decrease in the outlier fraction compared to redshiftsdetermined from only the optical and NIR data, and improves the scatter atz<0.5 and at z>2. The panchromatic coverage of the UDF from the NUV through theNIR yields robust photometric redshifts of the UDF, with the lowest outlierfraction available.

UVUDF: Ultraviolet Through Near-infrared Catalog and Photometric Redshifts of Galaxies in the Hubble Ultra Deep Field