The Impact of JWST Broadband Filter Choice on Photometric Redshift Estimation

L. Bisigello, K. I. Caputi, L. Colina, O. Le Fèvre, Hans Ulrik Nørgaard-Nielsen, P. G. Pérez-González, J. Pye, P. van der Werf, O. Ilbert, N. Grogin, A. Koekemoer

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Abstract

The determination of galaxy redshifts in the James Webb Space Telescope's (JWST) blank-field surveys will mostly rely on photometric estimates, based on the data provided by JWST's Near-Infrared Camera (NIRCam) at 0.6–5.0 μm and Mid Infrared Instrument (MIRI) at λ 5.0 μm. In this work we analyze the impact of choosing different combinations of NIRCam and MIRI broadband filters (F070W to F770W), as well as having ancillary data at λ 0.6 μm, on the derived photometric redshifts (z phot) of a total of 5921 real and simulated galaxies, with known input redshifts z = 0–10.
Original languageEnglish
Article number19
JournalThe Astrophysical Journal Supplement Series
Volume227
Issue number2
Number of pages27
ISSN0067-0049
DOIs
Publication statusPublished - 2016

Keywords

  • Galaxies: distances and redshifts
  • Galaxies: high-redshift
  • Galaxies: photometry

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