UVUDF: ULTRAVIOLET THROUGH NEAR-INFRARED CATALOG AND PHOTOMETRIC REDSHIFTS OF GALAXIES IN THE HUBBLE ULTRA DEEP FIELD
By M. Rafelski, H. Teplitz, J. Gardner, D. Coe, Nicholas A. Bond, A. Koekemoer, Norman Grogin, P. Kurczynski, E. McGrath, M. Bourque and 19 more. 2015
154 citations recorded by the source corpus.
We present photometry and derived redshifts from up to eleven bandpasses for 9927 galaxies in the Hubble Ultra Deep field (UDF), covering an observed wavelength range from the near-ultraviolet (NUV) to the near-infrared (NIR) with Hubble Space Telescope observations. Our Wide Field Camera 3 (WFC3)/UV F225W, F275W, and F336W image mosaics from the ultra-violet UDF (UVUDF) imaging campaign are newly calibrated to correct for charge transfer inefficiency, and use new dark calibrations to minimize background gradients and pattern noise. Our NIR WFC3/IR image mosaics combine the imaging from the UDF09 and UDF12 campaigns with CANDELS data to provide NIR coverage for the entire UDF field of view. We use aperture-matched point-spread function corrected photometry to measure photometric redshifts in the UDF, sampling both the Lyman break and Balmer break of galaxies at z ∼ 0.8 ?> – 3.4 ?> , and one of the breaks over the rest of the redshift range. Our comparison of these results with a compilation of robust spectroscopic redshifts shows an improvement in the galaxy photometric redshifts by a factor of two in scatter and a factor three in outlier fraction (OLF) over previous UDF catalogs. The inclusion of the new NUV data is responsible for a factor of two decrease in the OLF compared to redshifts determined from only the optical and NIR data, and improves the scatter at z < 0.5 ?> and at z > 2 ?> . The panchromatic coverage of the UDF from the NUV through the NIR yields robust photometric redshifts of the UDF, with the lowest OLF available.
Subfields: Astronomy and Astrophysics, Electrical and Electronic Engineering, Instrumentation
View Paper: https://www.semanticscholar.org/paper/93e012ea11d8efd34798f35f1d79eaef33d6638c
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Citations in the corpus
- KiDS-450: cosmological parameter constraints from tomographic weak gravitational lensing (2016, methodology): “The r-band magnitude distribution of the galaxies is chosen such that it matches the number counts measured in KiDS-DR1/2, and we use deep HST observations from GEMS (Rix et al. 2004) and UVUDF (Rafelski et al. 2015) to extend the distribution to the 28th magnitude in order to account for the effect”
- Modelling and interpreting spectral energy distributions of galaxies with BEAGLE (2016, methodology): “Moreover, for about 75 per cent of the outliers with ambiguous redshift solutions, the second redshift solution identified with the BEAGLE tool matches the redshift estimated by Rafelski et al. (2015) with the BPZ or EAZY codes.”
- The MUSE Hubble Ultra Deep Field Survey: I. Survey description, data reduction and source detection (2017, methodology): “Given that most of the HUDF galaxies fall in this regime (96% of the Rafelski et al. 2015, sample has AB > 25 and 55% has z > 2), it would be highly desirable to obtain a larger number of high-quality spectra in this magnitude and redshift range.”
- The MUSE Hubble Ultra Deep Field Survey - VIII. Extended Lyman-α haloes around high-z star-forming galaxies (2017, methodology): “We find that the resulting scale length limit corresponds to one quarter of the MUSE PSF FWHM.”
- ALMA SPECTROSCOPIC SURVEY IN THE HUBBLE ULTRA DEEP FIELD: THE INFRARED EXCESS OF UV-SELECTED z = 2–10 GALAXIES AS A FUNCTION OF UV-CONTINUUM SLOPE AND STELLAR MASS (2016, methodology): “We also made use of the photometric catalog of Rafelski et al. (2015) and included those sources in our samples, if not present in our primary two selections.”