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arxiv: 2306.02467 · v2 · pith:VYRZS3PBnew · submitted 2023-06-04 · 🌌 astro-ph.GA

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

Andrew J. Bunker , Alex J. Cameron , Emma Curtis-Lake , Peter Jakobsen , Stefano Carniani , Mirko Curti , Joris Witstok , Roberto Maiolino
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Francesco D'Eugenio Tobias J. Looser Chris Willott Nina Bonaventura Kevin Hainline Hannah Uebler Christopher N. A. Willmer Aayush Saxena Renske Smit Stacey Alberts Santiago Arribas William M. Baker Stefi Baum Rachana Bhatawdekar Rebecca A. A. Bowler Kristan Boyett Stephane Charlot Zuyi Chen Jacopo Chevallard Chiara Circosta Christa DeCoursey Anna de Graaff Eiichi Egami Daniel J. Eisenstein Ryan Endsley Pierre Ferruit Giovanna Giardino Ryan Hausen Jakob M. Helton Raphael E. Hviding Zhiyuan Ji Benjamin D. Johnson Gareth C. Jones Nimisha Kumari Isaac Laseter Nora Luetzgendorf Michael V. Maseda Erica Nelson Eleonora Parlanti Michele Perna Bernard J. Rauscher Tim Rawle Hans-Walter Rix Marcia Rieke Brant Robertson Bruno Rodriguez Del Pino Lester Sandles Jan Scholtz Katherine Sharpe Maya Skarbinski Daniel P. Stark Fengwu Sun Sandro Tacchella Michael W. Topping Natalia C. Villanueva Imaan E. B. Wallace Christina C. Williams Charity Woodrum
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classification 🌌 astro-ph.GA
keywords deepjadesnirspecjwstreleasespectraspectroscopictargets
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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 $0.6-5.3\mu$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 $S/N>5$, 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.

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