JEMS: A deep medium-band imaging survey in the Hubble Ultra-Deep Field with JWST NIRCam & NIRISS

Subjects: Astronomy >> Astrophysical processes submitted time 2023-02-19

Christina C. Williams Sandro Tacchella Michael V. Maseda Brant E. Robertson Benjamin D. Johnson Chris J. Willott Daniel J. Eisenstein Christopher N. A. Willmer Zhiyuan Ji Kevin N. Hainline Jakob M. Helton Stacey Alberts Stefi Baum Rachana Bhatawdekar Kristan Boyett Andrew J. Bunker Stefano Carniani Stephane Charlot Jacopo Chevallard Emma Curtis-Lake

Abstract： We present JEMS (JWST Extragalactic Medium-band Survey), the first public medium-band imaging survey carried out using JWST/NIRCam and NIRISS. These observations use $\sim2\mu$m and $\sim4\mu$m medium-band filters (NIRCam F182M, F210M, F430M, F460M, F480M; and NIRISS F430M & F480M in parallel) over 15.6 square arcminutes in the Hubble Ultra Deep Field (UDF), thereby building on the deepest multi-wavelength public datasets 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. 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 $0.31$ magnitude) across redshifts $1.5展开 -->

Peer Review Status:Awaiting Review

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