JEMS: A Deep Medium-band Imaging Survey in the Hubble Ultra Deep Field with JWST NIRCam and NIRISS - Institut d'Astrophysique de Paris Access content directly
Journal Articles The Astrophysical Journal Supplement Series Year : 2023

JEMS: A Deep Medium-band Imaging Survey in the Hubble Ultra Deep Field with JWST NIRCam and NIRISS

Christina Williams
Sandro Tacchella
Michael Maseda
Brant Robertson
Benjamin Johnson
Chris Willott
Daniel Eisenstein
Christopher Willmer
Zhiyuan Ji
Kevin Hainline
Jakob Helton
Stacey Alberts
Stefi Baum
  • Function : Author
Rachana Bhatawdekar
Kristan Boyett
Andrew Bunker
  • Function : Author
Stefano Carniani
Stephane Charlot
Jacopo Chevallard
Emma Curtis-Lake
Anna de Graaff
Eiichi Egami
Marijn Franx
Nimisha Kumari
Roberto Maiolino
Erica Nelson
Marcia Rieke
Lester Sandles
Irene Shivaei
Charlotte Simmonds
Renske Smit
Katherine A Suess
Fengwu Sun
Hannah Übler
Joris Witstok

Abstract

Abstract We present JWST Extragalactic Medium-band Survey, the first public medium-band imaging survey carried out using JWST/NIRCam and NIRISS. These observations use ∼2 and ∼4 μ m medium-band filters (NIRCam F182M, F210M, F430M, F460M, F480M; and NIRISS F430M and F480M in parallel) over 15.6 arcmin 2 in the Hubble Ultra Deep Field (UDF), thereby building on the deepest multiwavelength public data sets available anywhere on the sky. We describe our science goals, survey design, NIRCam and NIRISS image reduction methods, and describe our first data release of the science-ready mosaics, which reach 5 σ point-source limits (AB mag) of ∼29.3–29.4 in 2 μ m filters and ∼28.2–28.7 at 4 μ m. Our chosen filters create a JWST imaging survey in the UDF that enables novel analysis of a range of spectral features potentially across the redshift range of 0.3 < z < 20, including Paschen- α , H α +[N ii ], and [O iii ]+H β emission at high spatial resolution. We find that our JWST medium-band imaging efficiently identifies strong line emitters (medium-band colors >1 mag) across redshifts 1.5 < z < 9.3, most prominently H α +[N ii ] and [O iii ]+H β . We present our first data release including science-ready mosaics of each medium-band image available to the community, adding to the legacy value of past and future surveys in the UDF. This survey demonstrates the power of medium-band imaging with JWST, informing future extragalactic survey strategies using JWST observations.
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Dates and versions

hal-04293554 , version 1 (18-11-2023)

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Cite

Christina Williams, Sandro Tacchella, Michael Maseda, Brant Robertson, Benjamin Johnson, et al.. JEMS: A Deep Medium-band Imaging Survey in the Hubble Ultra Deep Field with JWST NIRCam and NIRISS. The Astrophysical Journal Supplement Series, 2023, 268 (2), pp.64. ⟨10.3847/1538-4365/acf130⟩. ⟨hal-04293554⟩
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