JADES NIRSpec Initial Data Release for the Hubble Ultra Deep Field: Redshifts and Line Fluxes of Distant Galaxies from the Deepest JWST Cycle 1 NIRSpec Multi-Object Spectroscopy
Creators: name: Bunker, Andrew J.
name: Cameron, Alex J.
name: Curtis-Lake, Emma
name: Jakobsen, Peter
name: Carniani, Stefano
name: Curti, Mirko
name: Witstok, Joris
name: Maiolino, Roberto
name: D'Eugenio, Francesco
name: Looser, Tobias J.
name: Willott, Chris
name: Bonaventura, Nina
name: Hainline, Kevin
name: Uebler, Hannah
name: Willmer, Christopher N. A.
name: Saxena, Aayush
name: Smit, Renske
name: Alberts, Stacey
name: Arribas, Santiago
name: Baker, William M.
name: Baum, Stefi
name: Bhatawdekar, Rachana
name: Bowler, Rebecca A. A.
name: Boyett, Kristan
name: Charlot, Stephane
name: Chen, Zuyi
name: Chevallard, Jacopo
name: Circosta, Chiara
name: DeCoursey, Christa
name: de Graaff, Anna
name: Egami, Eiichi
name: Eisenstein, Daniel J.
name: Endsley, Ryan
name: Ferruit, Pierre
name: Giardino, Giovanna
name: Hausen, Ryan
name: Helton, Jakob M.
name: Hviding, Raphael E.
name: Ji, Zhiyuan
name: Johnson, Benjamin D.
name: Jones, Gareth C.
name: Kumari, Nimisha
name: Laseter, Isaac
name: Luetzgendorf, Nora
name: Maseda, Michael V.
name: Nelson, Erica
name: Parlanti, Eleonora
name: Perna, Michele
name: Rauscher, Bernard J.
name: Rawle, Tim
name: Rix, Hans-Walter
name: Rieke, Marcia
name: Robertson, Brant
name: Del Pino, Bruno Rodriguez
name: Sandles, Lester
name: Scholtz, Jan
name: Sharpe, Katherine
name: Skarbinski, Maya
name: Stark, Daniel P.
name: Sun, Fengwu
name: Tacchella, Sandro
name: Topping, Michael W.
name: Villanueva, Natalia C.
name: Wallace, Imaan E. B.
name: Williams, Christina C.
name: Woodrum, Charity
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: We describe the NIRSpec component of the JWST Deep Extragalactic Survey (JADES), and provide deep spectroscopy of 253 sources targeted with the NIRSpec micro-shutter assembly in the Hubble Ultra Deep Field and surrounding GOODS-South. The multi-object spectra presented here are the deepest so far obtained with JWST, amounting to up to 28 hours in the low-dispersion ($R\sim 30-300$) prism, and up to 7 hours in each of the three medium-resolution $R\approx 1000$ gratings and one high-dispersion grating, G395H ($R\approx2700$). Our low-dispersion and medium-dispersion spectra cover the wavelength range $0.6-5.3μ$m. We describe the selection of the spectroscopic targets, the strategy for the allocation of targets to micro-shutters, and the design of the observations. We present the public release of the reduced 2D and 1D spectra, and a description of the reduction and calibration process. We measure spectroscopic redshifts for 178 of the objects targeted extending up to $z=13.2$. We present a catalog of all emission lines detected at $S/N&gt;5$, and our redshift determinations for the targets. Combined with the first JADES NIRCam data release, these public JADES spectroscopic and imaging datasets provide a new foundation for discoveries of the infrared universe by the worldwide scientific community.
description: Accepted for publication in A&amp;A. Data products available from https://archive.stsci.edu/hlsp/jades