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arxiv: 2209.04119 · v3 · pith:FHX3EAUDnew · submitted 2022-09-09 · 🌌 astro-ph.CO · astro-ph.GA

JWST's PEARLS: Prime Extragalactic Areas for Reionization and Lensing Science: Project Overview and First Results

Rogier A. Windhorst , Seth H. Cohen , Rolf A. Jansen , Jake Summers , Scott Tompkins , Christopher J. Conselice , Simon P. Driver , Haojing Yan
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Dan Coe Brenda Frye Norman Grogin Anton Koekemoer Madeline A. Marshall Rosalia O'Brien Nor Pirzkal Aaron Robotham Russell E. Ryan Jr. Christopher N. A. Willmer Timothy Carleton Jose M. Diego William C. Keel Paolo Porto Caleb Redshaw Sydney Scheller Stephen M. Wilkins S. P. Willner Adi Zitrin Nathan J. Adams Duncan Austin Richard G. Arendt John F. Beacom Rachana A. Bhatawdekar Larry D. Bradley Thomas J. Broadhurst Cheng Cheng Francesca Civano Liang Dai Herve Dole Jordan C. J. D'Silva Kenneth J. Duncan Giovanni G. Fazio Giovanni Ferrami Leonardo Ferreira Steven L. Finkelstein Lukas J. Furtak Hansung B. Gim Alex Griffiths Heidi B. Hammel Kevin C. Harrington Nimish P. Hathi Benne W. Holwerda Rachel Honor Jia-Sheng Huang Minhee Hyun Myungshin Im Bhavin A. Joshi Patrick S. Kamieneski Patrick Kelly Rebecca L. Larson Juno Li Jeremy Lim Zhiyuan Ma Peter Maksym Giorgio Manzoni Ashish Kumar Meena Stefanie N. Milam Mario Nonino Massimo Pascale Justin D. R. Pierel Andreea Petric Maria del Carmen Polletta Huub J. A. Rottgering Michael J. Rutkowski Ian Smail Amber N. Straughn Louis-Gregory Strolger Andi Swirbul James A. A. Trussler Lifan Wang Brian Welch J. Stuart B. Wyithe Min Yun Erik Zackrisson Jiashuo Zhang Xiurui Zhao
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keywords firstpearlsgalaxyfieldsjwstlensingnircamareas
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We give an overview and describe the rationale, methods, and first results from NIRCam images of the JWST "Prime Extragalactic Areas for Reionization and Lensing Science" ("PEARLS") project. PEARLS uses up to eight NIRCam filters to survey several prime extragalactic survey areas: two fields at the North Ecliptic Pole (NEP); seven gravitationally lensing clusters; two high redshift proto-clusters; and the iconic backlit VV 191 galaxy system to map its dust attenuation. PEARLS also includes NIRISS spectra for one of the NEP fields and NIRSpec spectra of two high-redshift quasars. The main goal of PEARLS is to study the epoch of galaxy assembly, AGN growth, and First Light. Five fields, the JWST NEP Time-Domain Field (TDF), IRAC Dark Field (IDF), and three lensing clusters, will be observed in up to four epochs over a year. The cadence and sensitivity of the imaging data are ideally suited to find faint variable objects such as weak AGN, high-redshift supernovae, and cluster caustic transits. Both NEP fields have sightlines through our Galaxy, providing significant numbers of very faint brown dwarfs whose proper motions can be studied. Observations from the first spoke in the NEP TDF are public. This paper presents our first PEARLS observations, their NIRCam data reduction and analysis, our first object catalogs, the 0.9-4.5 $\mu$m galaxy counts and Integrated Galaxy Light. We assess the JWST sky brightness in 13 NIRCam filters, yielding our first constraints to diffuse light at 0.9-4.5 {\mu}m. PEARLS is designed to be of lasting benefit to the community.

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